diff --git a/Cargo.lock b/Cargo.lock
index c86cb8d5ee..252a4b0eef 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -827,7 +827,7 @@ dependencies = [
 
 [[package]]
 name = "clickhouse-inserter"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-channel",
@@ -851,7 +851,7 @@ dependencies = [
 
 [[package]]
 name = "clickhouse-user-query"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "clickhouse",
  "serde",
@@ -1476,7 +1476,7 @@ checksum = "c34f04666d835ff5d62e058c3995147c06f42fe86ff053337632bca83e42702d"
 
 [[package]]
 name = "epoxy"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -1515,7 +1515,7 @@ dependencies = [
 
 [[package]]
 name = "epoxy-protocol"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "rivet-util",
@@ -1796,7 +1796,7 @@ dependencies = [
 
 [[package]]
 name = "gasoline"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-stream",
@@ -1844,7 +1844,7 @@ dependencies = [
 
 [[package]]
 name = "gasoline-macros"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2502,7 +2502,7 @@ dependencies = [
 
 [[package]]
 name = "internal"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "gasoline",
@@ -2901,7 +2901,7 @@ dependencies = [
 
 [[package]]
 name = "namespace"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "epoxy",
@@ -2910,7 +2910,6 @@ dependencies = [
  "internal",
  "reqwest",
  "rivet-api-builder",
- "rivet-api-types",
  "rivet-api-util",
  "rivet-data",
  "rivet-error",
@@ -3419,7 +3418,7 @@ checksum = "df94ce210e5bc13cb6651479fa48d14f601d9858cfe0467f43ae157023b938d3"
 
 [[package]]
 name = "pegboard"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "base64 0.22.1",
@@ -3451,7 +3450,7 @@ dependencies = [
 
 [[package]]
 name = "pegboard-actor-kv"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "futures-util",
@@ -3475,7 +3474,7 @@ dependencies = [
 
 [[package]]
 name = "pegboard-gateway"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -3507,7 +3506,7 @@ dependencies = [
 
 [[package]]
 name = "pegboard-runner"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -3541,7 +3540,7 @@ dependencies = [
 
 [[package]]
 name = "pegboard-serverless"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "base64 0.22.1",
@@ -4234,7 +4233,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-api-builder"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4277,7 +4276,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-api-peer"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4308,7 +4307,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-api-public"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4341,7 +4340,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-api-types"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "gasoline",
@@ -4356,7 +4355,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-api-util"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4376,7 +4375,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-bootstrap"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "epoxy",
  "gasoline",
@@ -4392,7 +4391,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-cache"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "futures-util",
@@ -4433,14 +4432,14 @@ dependencies = [
 
 [[package]]
 name = "rivet-cache-result"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "rivet-util",
 ]
 
 [[package]]
 name = "rivet-config"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "config",
@@ -4458,7 +4457,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-data"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "gasoline",
@@ -4472,7 +4471,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-dump-openapi"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "rivet-api-public",
  "serde_json",
@@ -4481,7 +4480,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-engine"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4538,13 +4537,14 @@ dependencies = [
  "tracing-subscriber",
  "universaldb",
  "url",
+ "urlencoding",
  "uuid",
  "vbare",
 ]
 
 [[package]]
 name = "rivet-env"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "lazy_static",
@@ -4554,7 +4554,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-error"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "indoc",
@@ -4566,7 +4566,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-error-macros"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "indoc",
  "proc-macro2",
@@ -4577,7 +4577,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-guard"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "axum 0.8.4",
@@ -4618,12 +4618,11 @@ dependencies = [
  "universalpubsub",
  "url",
  "urlencoding",
- "uuid",
 ]
 
 [[package]]
 name = "rivet-guard-core"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4669,7 +4668,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-logs"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -4683,7 +4682,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-metrics"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "console-subscriber",
@@ -4701,7 +4700,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-pools"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-nats",
@@ -4734,7 +4733,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-runner-protocol"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "gasoline",
@@ -4751,7 +4750,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-runtime"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "console-subscriber",
@@ -4778,7 +4777,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-service-manager"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -4795,7 +4794,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-telemetry"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "rivet-config",
@@ -4819,7 +4818,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-test-deps"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "futures-util",
@@ -4837,7 +4836,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-test-deps-docker"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "portpicker",
@@ -4868,7 +4867,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-tracing-utils"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "futures-util",
  "lazy_static",
@@ -4878,7 +4877,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-types"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "gasoline",
@@ -4895,7 +4894,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-ups-protocol"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "base64 0.22.1",
@@ -4908,7 +4907,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-util"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4940,7 +4939,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-util-id"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "serde",
  "thiserror 1.0.69",
@@ -4951,7 +4950,7 @@ dependencies = [
 
 [[package]]
 name = "rivet-workflow-worker"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "epoxy",
@@ -6710,7 +6709,7 @@ checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
 
 [[package]]
 name = "universaldb"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -6738,7 +6737,7 @@ dependencies = [
 
 [[package]]
 name = "universalpubsub"
-version = "2.0.24"
+version = "2.0.25-rc.1"
 dependencies = [
  "anyhow",
  "async-nats",
diff --git a/engine/artifacts/openapi.json b/engine/artifacts/openapi.json
index 396c4b1203..e0d8ffc94f 100644
--- a/engine/artifacts/openapi.json
+++ b/engine/artifacts/openapi.json
@@ -11,7 +11,7 @@
       "name": "Apache-2.0",
       "identifier": "Apache-2.0"
     },
-    "version": "2.0.24"
+    "version": "2.0.25-rc.1"
   },
   "paths": {
     "/actors": {
@@ -50,11 +50,23 @@
           {
             "name": "actor_ids",
             "in": "query",
+            "description": "Deprecated.",
             "required": false,
             "schema": {
               "type": "string"
             }
           },
+          {
+            "name": "actor_id",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "array",
+              "items": {
+                "$ref": "#/components/schemas/RivetId"
+              }
+            }
+          },
           {
             "name": "include_destroyed",
             "in": "query",
@@ -402,10 +414,22 @@
           {
             "name": "namespace_ids",
             "in": "query",
+            "description": "Deprecated.",
             "required": false,
             "schema": {
               "type": "string"
             }
+          },
+          {
+            "name": "namespace_id",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "array",
+              "items": {
+                "$ref": "#/components/schemas/RivetId"
+              }
+            }
           }
         ],
         "responses": {
@@ -503,10 +527,22 @@
           {
             "name": "runner_names",
             "in": "query",
+            "description": "Deprecated.",
             "required": false,
             "schema": {
               "type": "string"
             }
+          },
+          {
+            "name": "runner_name",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            }
           }
         ],
         "responses": {
@@ -746,11 +782,23 @@
           {
             "name": "runner_ids",
             "in": "query",
+            "description": "Deprecated.",
             "required": false,
             "schema": {
               "type": "string"
             }
           },
+          {
+            "name": "runner_id",
+            "in": "query",
+            "required": false,
+            "schema": {
+              "type": "array",
+              "items": {
+                "$ref": "#/components/schemas/RivetId"
+              }
+            }
+          },
           {
             "name": "include_stopped",
             "in": "query",
diff --git a/engine/docker/dev-host/rivet-engine/config.jsonc b/engine/docker/dev-host/rivet-engine/config.jsonc
index 61a1fc5761..87a23b0e07 100644
--- a/engine/docker/dev-host/rivet-engine/config.jsonc
+++ b/engine/docker/dev-host/rivet-engine/config.jsonc
@@ -17,7 +17,12 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://127.0.0.1:6421",
-				"public_url": "http://127.0.0.1:6420"
+				"public_url": "http://127.0.0.1:6420",
+				"valid_hosts": [
+					"127.0.0.1",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/0/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/0/config.jsonc
index 3b03026bee..0f74e2a346 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/0/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/0/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/1/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/1/config.jsonc
index 3b03026bee..0f74e2a346 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/1/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/1/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/2/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/2/config.jsonc
index 3b03026bee..0f74e2a346 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/2/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-a/rivet-engine/2/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/0/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/0/config.jsonc
index a4b0b3afef..0c940aaf6a 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/0/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/0/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/1/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/1/config.jsonc
index a4b0b3afef..0c940aaf6a 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/1/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/1/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/2/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/2/config.jsonc
index a4b0b3afef..0c940aaf6a 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/2/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-b/rivet-engine/2/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/0/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/0/config.jsonc
index 031928342a..b6218cd163 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/0/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/0/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/1/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/1/config.jsonc
index 031928342a..b6218cd163 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/1/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/1/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/2/config.jsonc b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/2/config.jsonc
index 031928342a..b6218cd163 100644
--- a/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/2/config.jsonc
+++ b/engine/docker/dev-multidc-multinode/datacenters/dc-c/rivet-engine/2/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a-0:6421",
-				"public_url": "http://rivet-engine-dc-a-0:6420"
+				"public_url": "http://rivet-engine-dc-a-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b-0:6421",
-				"public_url": "http://rivet-engine-dc-b-0:6420"
+				"public_url": "http://rivet-engine-dc-b-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c-0:6421",
-				"public_url": "http://rivet-engine-dc-c-0:6420"
+				"public_url": "http://rivet-engine-dc-c-0:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc/datacenters/dc-a/rivet-engine/config.jsonc b/engine/docker/dev-multidc/datacenters/dc-a/rivet-engine/config.jsonc
index 92aeec9834..dff69c3809 100644
--- a/engine/docker/dev-multidc/datacenters/dc-a/rivet-engine/config.jsonc
+++ b/engine/docker/dev-multidc/datacenters/dc-a/rivet-engine/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a:6421",
-				"public_url": "http://rivet-engine-dc-a:6420"
+				"public_url": "http://rivet-engine-dc-a:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b:6421",
-				"public_url": "http://rivet-engine-dc-b:6420"
+				"public_url": "http://rivet-engine-dc-b:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c:6421",
-				"public_url": "http://rivet-engine-dc-c:6420"
+				"public_url": "http://rivet-engine-dc-c:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc/datacenters/dc-b/rivet-engine/config.jsonc b/engine/docker/dev-multidc/datacenters/dc-b/rivet-engine/config.jsonc
index d029159339..6fa7e3b42d 100644
--- a/engine/docker/dev-multidc/datacenters/dc-b/rivet-engine/config.jsonc
+++ b/engine/docker/dev-multidc/datacenters/dc-b/rivet-engine/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a:6421",
-				"public_url": "http://rivet-engine-dc-a:6420"
+				"public_url": "http://rivet-engine-dc-a:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b:6421",
-				"public_url": "http://rivet-engine-dc-b:6420"
+				"public_url": "http://rivet-engine-dc-b:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c:6421",
-				"public_url": "http://rivet-engine-dc-c:6420"
+				"public_url": "http://rivet-engine-dc-c:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multidc/datacenters/dc-c/rivet-engine/config.jsonc b/engine/docker/dev-multidc/datacenters/dc-c/rivet-engine/config.jsonc
index 497e2c9d63..95818a2bfb 100644
--- a/engine/docker/dev-multidc/datacenters/dc-c/rivet-engine/config.jsonc
+++ b/engine/docker/dev-multidc/datacenters/dc-c/rivet-engine/config.jsonc
@@ -17,21 +17,36 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-dc-a:6421",
-				"public_url": "http://rivet-engine-dc-a:6420"
+				"public_url": "http://rivet-engine-dc-a:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-a",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-b",
 				"datacenter_label": 2,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-b:6421",
-				"public_url": "http://rivet-engine-dc-b:6420"
+				"public_url": "http://rivet-engine-dc-b:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-b",
+					"127.0.0.1",
+					"localhost"
+				]
 			},
 			{
 				"name": "dc-c",
 				"datacenter_label": 3,
 				"is_leader": false,
 				"peer_url": "http://rivet-engine-dc-c:6421",
-				"public_url": "http://rivet-engine-dc-c:6420"
+				"public_url": "http://rivet-engine-dc-c:6420",
+				"valid_hosts": [
+					"rivet-engine-dc-c",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multinode/rivet-engine/0/config.jsonc b/engine/docker/dev-multinode/rivet-engine/0/config.jsonc
index 659d9b0f34..78d35ea7a7 100644
--- a/engine/docker/dev-multinode/rivet-engine/0/config.jsonc
+++ b/engine/docker/dev-multinode/rivet-engine/0/config.jsonc
@@ -17,7 +17,12 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-0:6421",
-				"public_url": "http://rivet-engine-0:6420"
+				"public_url": "http://rivet-engine-0:6420",
+				"valid_hosts": [
+					"rivet-engine-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multinode/rivet-engine/1/config.jsonc b/engine/docker/dev-multinode/rivet-engine/1/config.jsonc
index 659d9b0f34..78d35ea7a7 100644
--- a/engine/docker/dev-multinode/rivet-engine/1/config.jsonc
+++ b/engine/docker/dev-multinode/rivet-engine/1/config.jsonc
@@ -17,7 +17,12 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-0:6421",
-				"public_url": "http://rivet-engine-0:6420"
+				"public_url": "http://rivet-engine-0:6420",
+				"valid_hosts": [
+					"rivet-engine-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev-multinode/rivet-engine/2/config.jsonc b/engine/docker/dev-multinode/rivet-engine/2/config.jsonc
index 659d9b0f34..78d35ea7a7 100644
--- a/engine/docker/dev-multinode/rivet-engine/2/config.jsonc
+++ b/engine/docker/dev-multinode/rivet-engine/2/config.jsonc
@@ -17,7 +17,12 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine-0:6421",
-				"public_url": "http://rivet-engine-0:6420"
+				"public_url": "http://rivet-engine-0:6420",
+				"valid_hosts": [
+					"rivet-engine-0",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/dev/rivet-engine/config.jsonc b/engine/docker/dev/rivet-engine/config.jsonc
index f760c38160..9c5ea86073 100644
--- a/engine/docker/dev/rivet-engine/config.jsonc
+++ b/engine/docker/dev/rivet-engine/config.jsonc
@@ -17,7 +17,12 @@
 				"datacenter_label": 1,
 				"is_leader": true,
 				"peer_url": "http://rivet-engine:6421",
-				"public_url": "http://rivet-engine:6420"
+				"public_url": "http://rivet-engine:6420",
+				"valid_hosts": [
+					"rivet-engine",
+					"127.0.0.1",
+					"localhost"
+				]
 			}
 		]
 	},
diff --git a/engine/docker/template/src/services/edge/rivet-engine.ts b/engine/docker/template/src/services/edge/rivet-engine.ts
index b2c712fba9..9e9ae9e5f4 100644
--- a/engine/docker/template/src/services/edge/rivet-engine.ts
+++ b/engine/docker/template/src/services/edge/rivet-engine.ts
@@ -20,6 +20,7 @@ export function generateDatacenterRivetEngine(
 			is_leader: dc.id === 1,
 			peer_url: `http://${serviceHost}:${API_PEER_PORT}`,
 			public_url: `http://${serviceHost}:${GUARD_PORT}`,
+			valid_hosts: [`${serviceHost}`, `127.0.0.1`, `localhost`],
 		});
 	}
 
diff --git a/engine/packages/api-peer/src/actors/list.rs b/engine/packages/api-peer/src/actors/list.rs
index 6291e58caf..004eb8715a 100644
--- a/engine/packages/api-peer/src/actors/list.rs
+++ b/engine/packages/api-peer/src/actors/list.rs
@@ -14,18 +14,25 @@ use rivet_api_types::{actors::list::*, pagination::Pagination};
 #[tracing::instrument(skip_all)]
 pub async fn list(ctx: ApiCtx, _path: (), query: ListQuery) -> Result<ListResponse> {
 	let key = query.key;
-	let actor_ids = query.actor_ids.as_ref().map(|x| {
-		x.split(',')
-			.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
-			.collect::<Vec<_>>()
-	});
+	let actor_ids = [
+		query.actor_id,
+		query
+			.actor_ids
+			.map(|x| {
+				x.split(',')
+					.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
+					.collect::<Vec<_>>()
+			})
+			.unwrap_or_default(),
+	]
+	.concat();
 	let include_destroyed = query.include_destroyed.unwrap_or(false);
 
 	// TODO: Update api-peer to require including the reservation ID in the query if querying with
 	// key in order to assert the request was sent to the correct datacenter
 
 	// If actor_ids are provided, fetch actors directly by ID
-	if let Some(actor_ids) = actor_ids {
+	if !actor_ids.is_empty() {
 		// Resolve namespace to verify actors belong to it
 		let namespace = ctx
 			.op(namespace::ops::resolve_for_name_global::Input {
@@ -36,9 +43,7 @@ pub async fn list(ctx: ApiCtx, _path: (), query: ListQuery) -> Result<ListRespon
 
 		// Fetch actors by their IDs
 		let get_res = ctx
-			.op(pegboard::ops::actor::get::Input {
-				actor_ids: actor_ids.clone(),
-			})
+			.op(pegboard::ops::actor::get::Input { actor_ids })
 			.await?;
 
 		// Filter actors by namespace
diff --git a/engine/packages/api-peer/src/namespaces.rs b/engine/packages/api-peer/src/namespaces.rs
index 2368d52a22..0e4a1aa948 100644
--- a/engine/packages/api-peer/src/namespaces.rs
+++ b/engine/packages/api-peer/src/namespaces.rs
@@ -8,11 +8,18 @@ use utoipa::ToSchema;
 
 #[tracing::instrument(skip_all)]
 pub async fn list(ctx: ApiCtx, _path: (), query: ListQuery) -> Result<ListResponse> {
-	let namespace_ids = query.namespace_ids.as_ref().map(|x| {
-		x.split(',')
-			.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
-			.collect::<Vec<_>>()
-	});
+	let namespace_ids = [
+		query.namespace_id,
+		query
+			.namespace_ids
+			.map(|x| {
+				x.split(',')
+					.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
+					.collect::<Vec<_>>()
+			})
+			.unwrap_or_default(),
+	]
+	.concat();
 
 	// If name filter is provided, resolve and return only that namespace
 	if let Some(name) = query.name {
@@ -30,7 +37,7 @@ pub async fn list(ctx: ApiCtx, _path: (), query: ListQuery) -> Result<ListRespon
 			namespaces,
 			pagination: Pagination { cursor: None },
 		})
-	} else if let Some(namespace_ids) = namespace_ids {
+	} else if !namespace_ids.is_empty() {
 		let namespaces = ctx
 			.op(namespace::ops::get_global::Input { namespace_ids })
 			.await?;
diff --git a/engine/packages/api-peer/src/runner_configs.rs b/engine/packages/api-peer/src/runner_configs.rs
index 8324984794..eadf2b14b4 100644
--- a/engine/packages/api-peer/src/runner_configs.rs
+++ b/engine/packages/api-peer/src/runner_configs.rs
@@ -15,12 +15,21 @@ pub async fn list(ctx: ApiCtx, _path: ListPath, query: ListQuery) -> Result<List
 		.await?
 		.ok_or_else(|| namespace::errors::Namespace::NotFound.build())?;
 
-	if let Some(runner_names) = query.runner_names {
+	let runner_names = [
+		query.runner_name,
+		query
+			.runner_names
+			.map(|x| x.split(',').map(|x| x.to_string()).collect::<Vec<_>>())
+			.unwrap_or_default(),
+	]
+	.concat();
+
+	if !runner_names.is_empty() {
 		let runner_configs = ctx
 			.op(namespace::ops::runner_config::get::Input {
 				runners: runner_names
-					.split(',')
-					.map(|name| (namespace.namespace_id, name.to_string()))
+					.into_iter()
+					.map(|name| (namespace.namespace_id, name))
 					.collect(),
 				bypass_cache: false,
 			})
diff --git a/engine/packages/api-peer/src/runners.rs b/engine/packages/api-peer/src/runners.rs
index 2adbbee834..1422101c12 100644
--- a/engine/packages/api-peer/src/runners.rs
+++ b/engine/packages/api-peer/src/runners.rs
@@ -22,11 +22,20 @@ pub async fn list(ctx: ApiCtx, _path: (), query: ListQuery) -> Result<ListRespon
 		.await?
 		.ok_or_else(|| namespace::errors::Namespace::NotFound.build())?;
 
-	if let Some(runner_ids) = query.runner_ids {
-		let runner_ids = runner_ids
-			.split(',')
-			.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
-			.collect::<Vec<_>>();
+	let runner_ids = [
+		query.runner_id,
+		query
+			.runner_ids
+			.map(|x| {
+				x.split(',')
+					.filter_map(|s| s.trim().parse::<rivet_util::Id>().ok())
+					.collect::<Vec<_>>()
+			})
+			.unwrap_or_default(),
+	]
+	.concat();
+
+	if !runner_ids.is_empty() {
 		let runners = ctx
 			.op(pegboard::ops::runner::get::Input { runner_ids })
 			.await?
diff --git a/engine/packages/api-public/src/actors/list.rs b/engine/packages/api-public/src/actors/list.rs
index 4aedf36583..005bc9f350 100644
--- a/engine/packages/api-public/src/actors/list.rs
+++ b/engine/packages/api-public/src/actors/list.rs
@@ -1,5 +1,6 @@
 use anyhow::{Context, Result};
 use axum::response::{IntoResponse, Response};
+use gas::prelude::*;
 use rivet_api_builder::{
 	ApiError,
 	extract::{Extension, Json, Query},
@@ -18,7 +19,11 @@ pub struct ListQuery {
 	pub namespace: String,
 	pub name: Option<String>,
 	pub key: Option<String>,
+	/// Deprecated.
+	#[serde(default)]
 	pub actor_ids: Option<String>,
+	#[serde(default)]
+	pub actor_id: Vec<Id>,
 	pub include_destroyed: Option<bool>,
 	pub limit: Option<usize>,
 	pub cursor: Option<String>,
@@ -84,7 +89,7 @@ async fn list_inner(ctx: ApiCtx, query: ListQuery) -> Result<ListResponse> {
 	// Validate exclusive input: either (name + key) or actor_ids
 	if actor_ids.is_some() && (query.name.is_some() || query.key.is_some()) {
 		return Err(errors::Validation::InvalidInput {
-			message: "Cannot provide both actor_ids and (name + key). Use either actor_ids or (name + key).".to_string(),
+			message: "Cannot provide both actor_id and (name + key). Use either actor_id or (name + key).".to_string(),
 		}
 		.build());
 	}
@@ -202,6 +207,7 @@ async fn list_inner(ctx: ApiCtx, query: ListQuery) -> Result<ListResponse> {
 			name: Some(query.name.as_ref().unwrap().clone()),
 			key: query.key.clone(),
 			actor_ids: None,
+			actor_id: Vec::new(),
 			include_destroyed: query.include_destroyed,
 			limit: query.limit,
 			cursor: query.cursor.clone(),
diff --git a/engine/packages/api-public/src/actors/utils.rs b/engine/packages/api-public/src/actors/utils.rs
index 3fa74e13f7..746e9e8ca7 100644
--- a/engine/packages/api-public/src/actors/utils.rs
+++ b/engine/packages/api-public/src/actors/utils.rs
@@ -79,19 +79,13 @@ pub async fn fetch_actors_by_ids(
 		let limit = limit;
 
 		async move {
-			// Convert actor IDs to comma-separated string
-			let actor_ids_str = dc_actor_ids
-				.iter()
-				.map(|id| id.to_string())
-				.collect::<Vec<_>>()
-				.join(",");
-
 			// Prepare peer query with actor_ids
 			let peer_query = rivet_api_types::actors::list::ListQuery {
 				namespace: namespace.clone(),
 				name: None,
 				key: None,
-				actor_ids: Some(actor_ids_str),
+				actor_ids: None,
+				actor_id: dc_actor_ids,
 				include_destroyed,
 				limit,
 				cursor: None,
diff --git a/engine/packages/api-types/src/actors/list.rs b/engine/packages/api-types/src/actors/list.rs
index 1efb53b4af..d7988f1b1c 100644
--- a/engine/packages/api-types/src/actors/list.rs
+++ b/engine/packages/api-types/src/actors/list.rs
@@ -1,3 +1,4 @@
+use gas::prelude::*;
 use serde::{Deserialize, Serialize};
 use utoipa::{IntoParams, ToSchema};
 
@@ -8,7 +9,11 @@ pub struct ListQuery {
 	pub namespace: String,
 	pub name: Option<String>,
 	pub key: Option<String>,
+	/// Deprecated.
+	#[serde(default)]
 	pub actor_ids: Option<String>,
+	#[serde(default)]
+	pub actor_id: Vec<Id>,
 	pub include_destroyed: Option<bool>,
 	pub limit: Option<usize>,
 	pub cursor: Option<String>,
diff --git a/engine/packages/api-types/src/namespaces/list.rs b/engine/packages/api-types/src/namespaces/list.rs
index bd84b83a45..40bdd29bc9 100644
--- a/engine/packages/api-types/src/namespaces/list.rs
+++ b/engine/packages/api-types/src/namespaces/list.rs
@@ -1,3 +1,4 @@
+use gas::prelude::*;
 use serde::{Deserialize, Serialize};
 use utoipa::{IntoParams, ToSchema};
 
@@ -8,8 +9,11 @@ pub struct ListQuery {
 	pub limit: Option<usize>,
 	pub cursor: Option<String>,
 	pub name: Option<String>,
+	/// Deprecated.
 	#[serde(default)]
 	pub namespace_ids: Option<String>,
+	#[serde(default)]
+	pub namespace_id: Vec<Id>,
 }
 
 #[derive(Serialize, Deserialize, ToSchema)]
diff --git a/engine/packages/api-types/src/runner_configs/list.rs b/engine/packages/api-types/src/runner_configs/list.rs
index b9ded225d1..f8662fed3d 100644
--- a/engine/packages/api-types/src/runner_configs/list.rs
+++ b/engine/packages/api-types/src/runner_configs/list.rs
@@ -13,8 +13,11 @@ pub struct ListQuery {
 	pub limit: Option<usize>,
 	pub cursor: Option<String>,
 	pub variant: Option<rivet_types::keys::namespace::runner_config::RunnerConfigVariant>,
+	/// Deprecated.
 	#[serde(default)]
 	pub runner_names: Option<String>,
+	#[serde(default)]
+	pub runner_name: Vec<String>,
 }
 
 #[derive(Deserialize, Clone)]
diff --git a/engine/packages/api-types/src/runners/list.rs b/engine/packages/api-types/src/runners/list.rs
index 0b95489915..8cd976a458 100644
--- a/engine/packages/api-types/src/runners/list.rs
+++ b/engine/packages/api-types/src/runners/list.rs
@@ -1,3 +1,4 @@
+use gas::prelude::*;
 use serde::{Deserialize, Serialize};
 use utoipa::{IntoParams, ToSchema};
 
@@ -9,8 +10,11 @@ use crate::pagination::Pagination;
 pub struct ListQuery {
 	pub namespace: String,
 	pub name: Option<String>,
+	/// Deprecated.
 	#[serde(default)]
 	pub runner_ids: Option<String>,
+	#[serde(default)]
+	pub runner_id: Vec<Id>,
 	pub include_stopped: Option<bool>,
 	pub limit: Option<usize>,
 	pub cursor: Option<String>,
diff --git a/engine/packages/bootstrap/Cargo.toml b/engine/packages/bootstrap/Cargo.toml
index 89f192869d..11331ca20b 100644
--- a/engine/packages/bootstrap/Cargo.toml
+++ b/engine/packages/bootstrap/Cargo.toml
@@ -6,7 +6,9 @@ authors.workspace = true
 license.workspace = true
 
 [dependencies]
+epoxy.workspace = true
 gas.workspace = true
+namespace.workspace = true
 rivet-config.workspace = true
 rivet-metrics.workspace = true
 rivet-runtime.workspace = true
@@ -14,6 +16,3 @@ serde.workspace = true
 tokio-tungstenite.workspace = true
 tracing.workspace = true
 url.workspace = true
-
-namespace.workspace = true
-epoxy.workspace = true
diff --git a/engine/packages/engine/Cargo.toml b/engine/packages/engine/Cargo.toml
index 5ec6d4b841..b74548bee0 100644
--- a/engine/packages/engine/Cargo.toml
+++ b/engine/packages/engine/Cargo.toml
@@ -71,4 +71,5 @@ rivet-util.workspace = true
 rstest.workspace = true
 tokio-tungstenite.workspace = true
 tracing-subscriber.workspace = true
+urlencoding.workspace = true
 vbare.workspace = true
diff --git a/engine/packages/engine/tests/common/actors.rs b/engine/packages/engine/tests/common/actors.rs
index e8105e682b..993f166aa9 100644
--- a/engine/packages/engine/tests/common/actors.rs
+++ b/engine/packages/engine/tests/common/actors.rs
@@ -1,6 +1,7 @@
 #![allow(dead_code, unused_variables)]
 
 use serde_json::json;
+use url::Url;
 
 #[derive(Clone)]
 pub struct CreateActorOptions {
@@ -292,34 +293,36 @@ pub async fn list_actors(
 	guard_port: u16,
 ) -> reqwest::Response {
 	let client = reqwest::Client::new();
-	let mut url = format!(
-		"http://127.0.0.1:{}/actors?namespace={}",
-		guard_port, namespace
-	);
+	let mut url = Url::parse(&format!("http://127.0.0.1:{guard_port}/actors")).unwrap();
+	let mut query = url.query_pairs_mut();
+
+	query.append_pair("namespace", namespace);
 
 	if let Some(name) = name {
-		url.push_str(&format!("&name={}", name));
+		query.append_pair("name", name);
 	}
 	if let Some(key) = key {
-		url.push_str(&format!("&key={}", key));
+		query.append_pair("key", &key);
 	}
-	if let Some(actor_ids) = actor_ids {
-		url.push_str(&format!("&actor_ids={}", actor_ids.join(",")));
+	for actor_id in actor_ids.into_iter().flatten() {
+		query.append_pair("actor_id", &actor_id);
 	}
 	if let Some(include_destroyed) = include_destroyed {
-		url.push_str(&format!("&include_destroyed={}", include_destroyed));
+		query.append_pair("include_destroyed", &include_destroyed.to_string());
 	}
 	if let Some(limit) = limit {
-		url.push_str(&format!("&limit={}", limit));
+		query.append_pair("limit", &limit.to_string());
 	}
 	if let Some(cursor) = cursor {
-		url.push_str(&format!("&cursor={}", cursor));
+		query.append_pair("cursor", cursor);
 	}
 
+	drop(query);
+
 	tracing::info!(?url, "listing actors");
 
 	client
-		.get(&url)
+		.get(url)
 		.send()
 		.await
 		.expect("Failed to send list request")
diff --git a/engine/packages/epoxy/src/ops/propose.rs b/engine/packages/epoxy/src/ops/propose.rs
index 3435aa97d8..81ced977ae 100644
--- a/engine/packages/epoxy/src/ops/propose.rs
+++ b/engine/packages/epoxy/src/ops/propose.rs
@@ -135,7 +135,7 @@ pub async fn commit(
 ) -> Result<ProposalResult> {
 	// Commit locally
 	//
-	// Receives command error aftoer committing to KV. Proposals are still committed even if there
+	// Receives command error after committing to KV. Proposals are still committed even if there
 	// is a command error since command errors are purely feedback to the client that the command
 	// was not applied.
 	let cmd_err = {
diff --git a/engine/packages/epoxy/tests/common/mod.rs b/engine/packages/epoxy/tests/common/mod.rs
index 51bc65f8d6..d6295a9de5 100644
--- a/engine/packages/epoxy/tests/common/mod.rs
+++ b/engine/packages/epoxy/tests/common/mod.rs
@@ -4,7 +4,6 @@ use epoxy_protocol::protocol::ReplicaId;
 use gas::prelude::{TestCtx as WorkflowTestCtx, *};
 // Note: workflows module no longer exposed in tests
 use rivet_util::Id;
-use serde_json::json;
 use std::collections::HashMap;
 use url::Url;
 
@@ -82,9 +81,7 @@ impl TestCtx {
 		// Start coordinator workflow on leader
 		let mut config_sub = test_ctx
 			.get_ctx(leader_id)
-			.subscribe::<epoxy::workflows::coordinator::ConfigChangeMessage>(
-				json!({ "replica": leader_id }),
-			)
+			.subscribe::<epoxy::workflows::coordinator::ConfigChangeMessage>(("replica", leader_id))
 			.await
 			.unwrap();
 
@@ -284,9 +281,7 @@ async fn setup_epoxy_coordinator_wf(
 
 	// Trigger reconfiguration
 	let mut sub = leader_ctx
-		.subscribe::<epoxy::workflows::coordinator::ConfigChangeMessage>(
-			json!({ "replica": leader_id }),
-		)
+		.subscribe::<epoxy::workflows::coordinator::ConfigChangeMessage>(("replica", leader_id))
 		.await?;
 	leader_ctx
 		.signal(epoxy::workflows::coordinator::Reconfigure {})
diff --git a/engine/packages/guard-core/Cargo.toml b/engine/packages/guard-core/Cargo.toml
index aa1382ecd4..b29fbcb0e5 100644
--- a/engine/packages/guard-core/Cargo.toml
+++ b/engine/packages/guard-core/Cargo.toml
@@ -44,7 +44,6 @@ tokio.workspace = true
 tracing-subscriber = { workspace = true, features = ["env-filter"] }
 tracing.workspace = true
 url.workspace = true
-uuid = { workspace = true, features = ["v4", "serde"] }
 
 # Optional dependencies for ops feature
 gas = { workspace = true, optional = true }
@@ -56,3 +55,4 @@ futures-util.workspace = true
 futures.workspace = true
 reqwest.workspace = true
 tokio-stream.workspace = true
+uuid.workspace = true
\ No newline at end of file
diff --git a/engine/packages/guard-core/tests/custom_serve.rs b/engine/packages/guard-core/tests/custom_serve.rs
index af87a82097..3cd3d3eaa5 100644
--- a/engine/packages/guard-core/tests/custom_serve.rs
+++ b/engine/packages/guard-core/tests/custom_serve.rs
@@ -8,6 +8,7 @@ use bytes::Bytes;
 use futures_util::{SinkExt, StreamExt};
 use http_body_util::Full;
 use hyper::{Method, Request, Response, StatusCode};
+use rivet_runner_protocol as protocol;
 use tokio_tungstenite::{connect_async, tungstenite::protocol::Message};
 
 use common::{create_test_config, init_tracing, start_guard};
@@ -17,7 +18,6 @@ use rivet_guard_core::errors::WebSocketServiceHibernate;
 use rivet_guard_core::proxy_service::{ResponseBody, RoutingFn, RoutingOutput};
 use rivet_guard_core::request_context::RequestContext;
 use tokio_tungstenite::tungstenite::protocol::frame::CloseFrame;
-use uuid::Uuid;
 
 const HIBERNATION_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(2);
 
@@ -40,6 +40,7 @@ impl CustomServeTrait for TestCustomServe {
 		&self,
 		req: Request<Full<Bytes>>,
 		_request_context: &mut RequestContext,
+		_unique_request_id: protocol::RequestId,
 	) -> Result<Response<ResponseBody>> {
 		// Track this HTTP call
 		let path = req.uri().path().to_string();
@@ -71,7 +72,7 @@ impl CustomServeTrait for TestCustomServe {
 		_headers: &hyper::HeaderMap,
 		_path: &str,
 		_request_context: &mut RequestContext,
-		_unique_request_id: Uuid,
+		_unique_request_id: protocol::RequestId,
 		_after_hibernation: bool,
 	) -> Result<Option<CloseFrame>> {
 		// Track this WebSocket call
@@ -116,7 +117,7 @@ impl CustomServeTrait for TestCustomServe {
 	async fn handle_websocket_hibernation(
 		&self,
 		_websocket: WebSocketHandle,
-		_unique_request_id: Uuid,
+		_unique_request_id: protocol::RequestId,
 	) -> Result<HibernationResult> {
 		// Track this WebSocket call
 		self.tracker
diff --git a/engine/packages/guard/Cargo.toml b/engine/packages/guard/Cargo.toml
index f7d8307d43..40ad190457 100644
--- a/engine/packages/guard/Cargo.toml
+++ b/engine/packages/guard/Cargo.toml
@@ -13,19 +13,19 @@ path = "src/lib.rs"
 anyhow.workspace = true
 axum.workspace = true
 bytes.workspace = true
+futures.workspace = true
 gas.workspace = true
-http-body.workspace = true
 http-body-util.workspace = true
+http-body.workspace = true
 hyper-tungstenite.workspace = true
 tower.workspace = true
-futures.workspace = true
 # TODO: Make this use workspace version
 hyper = "1.6.0"
 indoc.workspace = true
 once_cell.workspace = true
 pegboard-gateway.workspace = true
-pegboard.workspace = true
 pegboard-runner.workspace = true
+pegboard.workspace = true
 regex.workspace = true
 rivet-api-builder.workspace = true
 rivet-api-public.workspace = true
@@ -43,14 +43,10 @@ rustls-pemfile.workspace = true
 rustls.workspace = true
 serde_json.workspace = true
 serde.workspace = true
-tokio.workspace = true
 tokio-tungstenite.workspace = true
+tokio.workspace = true
 tracing.workspace = true
 universaldb.workspace = true
 universalpubsub.workspace = true
 url.workspace = true
 urlencoding.workspace = true
-uuid.workspace = true
-
-[dev-dependencies]
-uuid.workspace = true
diff --git a/engine/packages/namespace/Cargo.toml b/engine/packages/namespace/Cargo.toml
index c9d6e953e4..9696ecc0a4 100644
--- a/engine/packages/namespace/Cargo.toml
+++ b/engine/packages/namespace/Cargo.toml
@@ -13,7 +13,6 @@ gas.workspace = true
 internal.workspace = true
 reqwest.workspace = true
 rivet-api-builder.workspace = true
-rivet-api-types.workspace = true
 rivet-api-util.workspace = true
 rivet-data.workspace = true
 rivet-error.workspace = true
diff --git a/engine/packages/namespace/src/ops/get_global.rs b/engine/packages/namespace/src/ops/get_global.rs
index 3ad9f7ae2b..8ee7b6df4b 100644
--- a/engine/packages/namespace/src/ops/get_global.rs
+++ b/engine/packages/namespace/src/ops/get_global.rs
@@ -39,10 +39,7 @@ pub async fn namespace_get_global(ctx: &OperationCtx, input: &Input) -> Result<V
 							.send()
 							.await?;
 
-						let res = rivet_api_util::parse_response::<
-							rivet_api_types::namespaces::list::ListResponse,
-						>(res)
-						.await?;
+						let res = rivet_api_util::parse_response::<ListResponse>(res).await?;
 
 						for ns in res.namespaces {
 							let namespace_id = ns.namespace_id;
@@ -56,3 +53,9 @@ pub async fn namespace_get_global(ctx: &OperationCtx, input: &Input) -> Result<V
 			.await
 	}
 }
+
+// TODO: Cyclical dependency with rivet_api_types
+#[derive(Deserialize)]
+struct ListResponse {
+	namespaces: Vec<Namespace>,
+}
diff --git a/engine/packages/namespace/src/ops/resolve_for_name_global.rs b/engine/packages/namespace/src/ops/resolve_for_name_global.rs
index c78089b6af..dec633c53d 100644
--- a/engine/packages/namespace/src/ops/resolve_for_name_global.rs
+++ b/engine/packages/namespace/src/ops/resolve_for_name_global.rs
@@ -38,10 +38,7 @@ pub async fn namespace_resolve_for_name_global(
 							.custom_instrument(tracing::info_span!("namespaces_http_request"))
 							.await?;
 
-						let res = rivet_api_util::parse_response::<
-							rivet_api_types::namespaces::list::ListResponse,
-						>(res)
-						.await?;
+						let res = rivet_api_util::parse_response::<ListResponse>(res).await?;
 
 						let ns = res.namespaces.into_iter().next();
 
@@ -55,3 +52,9 @@ pub async fn namespace_resolve_for_name_global(
 			.map(|x| x.flatten())
 	}
 }
+
+// TODO: Cyclical dependency with rivet_api_types
+#[derive(Deserialize)]
+struct ListResponse {
+	namespaces: Vec<Namespace>,
+}
diff --git a/engine/packages/pegboard/src/ops/actor/get_for_key.rs b/engine/packages/pegboard/src/ops/actor/get_for_key.rs
index 271d1a28d3..3fdbd23210 100644
--- a/engine/packages/pegboard/src/ops/actor/get_for_key.rs
+++ b/engine/packages/pegboard/src/ops/actor/get_for_key.rs
@@ -78,6 +78,7 @@ pub async fn pegboard_actor_get_for_key(ctx: &OperationCtx, input: &Input) -> Re
 				name: Some(input.name.clone()),
 				key: Some(input.key.clone()),
 				actor_ids: None,
+				actor_id: Vec::new(),
 				include_destroyed: Some(false),
 				limit: Some(1),
 				cursor: None,
diff --git a/engine/packages/pegboard/src/ops/runner/find_dc_with_runner.rs b/engine/packages/pegboard/src/ops/runner/find_dc_with_runner.rs
index bb8f3a2efc..c3c969cee9 100644
--- a/engine/packages/pegboard/src/ops/runner/find_dc_with_runner.rs
+++ b/engine/packages/pegboard/src/ops/runner/find_dc_with_runner.rs
@@ -108,6 +108,7 @@ async fn find_dc_with_runner_inner(ctx: &OperationCtx, input: &Input) -> Result<
 				namespace: namespace.name.clone(),
 				name: Some(input.runner_name.clone()),
 				runner_ids: None,
+				runner_id: Vec::new(),
 				include_stopped: Some(false),
 				limit: Some(16),
 				cursor: None,
@@ -133,7 +134,8 @@ async fn find_dc_with_runner_inner(ctx: &OperationCtx, input: &Input) -> Result<
 		runner_configs_list::ListQuery {
 			namespace: namespace.name.clone(),
 			variant: None,
-			runner_names: Some(input.runner_name.clone()),
+			runner_names: None,
+			runner_name: vec![input.runner_name.clone()],
 			limit: None,
 			cursor: None,
 		},