diff --git a/dist/axios.d.ts b/dist/axios.d.ts
index 3665ccf..f6e011c 100644
--- a/dist/axios.d.ts
+++ b/dist/axios.d.ts
@@ -1 +1 @@
-export default function (step: any, config: any): Promise<any>;
+export default function (step: any, config: any, signConfig?: any): Promise<any>;
diff --git a/dist/axios.js b/dist/axios.js
index 53d8ce8..fe3ec62 100644
--- a/dist/axios.js
+++ b/dist/axios.js
@@ -28,8 +28,32 @@ export default async function(step: any, config) {
   }
 }
 */
-async function default_1(step, config) {
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI
+// see non-escaped chars
+// this handles not encoding [!'()*]
+function encodeReservedChars(str) {
+    return str.replace(/[!'()*]/g, function (c) {
+        return '%' + c.charCodeAt(0).toString(16);
+    });
+}
+async function default_1(step, config, signConfig) {
     // XXX warn about mutating config object... or clone?
+    // OAuth1 request
+    if (signConfig) {
+        const { oauthSignerUri, token } = signConfig;
+        // this handles encoding query string to make sure we match what we sign
+        const url = new URL(config.url);
+        url.search = encodeReservedChars(url.search.substr(1));
+        config.url = url.toString();
+        const payload = {
+            requestData: config,
+            token,
+        };
+        const oauthSignature = (await axios_1.default.post(oauthSignerUri, payload)).data;
+        if (!config.headers)
+            config.headers = {};
+        config.headers.Authorization = oauthSignature;
+    }
     for (const k in config.headers || {}) {
         if (typeof config.headers[k] === "undefined") {
             delete config.headers[k];
diff --git a/lib/axios.ts b/lib/axios.ts
index 656b7dd..1f79263 100644
--- a/lib/axios.ts
+++ b/lib/axios.ts
@@ -28,8 +28,34 @@ export default async function(step: any, config) {
 }
 */
 
-export default async function(step: any, config) {
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI
+// see non-escaped chars
+// this handles not encoding [!'()*]
+function encodeReservedChars(str) {
+  return str.replace(/[!'()*]/g, function(c) {
+    return '%' + c.charCodeAt(0).toString(16)
+  })
+}
+
+export default async function(step: any, config, signConfig?) {
   // XXX warn about mutating config object... or clone?
+  // OAuth1 request
+  if (signConfig) {
+    const {oauthSignerUri, token} = signConfig
+
+    // this handles encoding query string to make sure we match what we sign
+    const url = new URL(config.url)
+    url.search = encodeReservedChars(url.search.substr(1))
+    config.url = url.toString()
+
+    const payload = {
+      requestData: config,
+      token,
+    }
+    const oauthSignature = (await axios.post(oauthSignerUri, payload)).data
+    if (!config.headers) config.headers = {}
+    config.headers.Authorization = oauthSignature
+  }
   for (const k in config.headers || {}) {
     if (typeof config.headers[k] === "undefined") {
       delete config.headers[k]
diff --git a/package-lock.json b/package-lock.json
index 6a42055..8a8cbd8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@pipedreamhq/platform",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2346,7 +2346,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2367,12 +2368,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2387,17 +2390,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2514,7 +2520,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2526,6 +2533,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2540,6 +2548,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -2547,12 +2556,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2571,6 +2582,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2651,7 +2663,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2663,6 +2676,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2748,7 +2762,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2784,6 +2799,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2803,6 +2819,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2846,12 +2863,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index 5573251..38dd9b4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pipedreamhq/platform",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "Pipedream platform globals (typing and runtime type checking)",
   "homepage": "https://pipedream.com",
   "main": "dist/index.js",