diff --git a/.env.sample.holesky b/.env.sample.holesky
index 0ab89a1e..f6fdfcc7 100644
--- a/.env.sample.holesky
+++ b/.env.sample.holesky
@@ -33,7 +33,7 @@ COMPOSE_PROFILES=${EL},${CL},${VC},${MEV}
 COMPOSE_FILE=compose-el.yml:compose-cl.yml:compose-vc.yml:compose-mev.yml:docker-compose.yml
 
 # Enables Builder API.
-#BUILDER_API_ENABLED=
+BUILDER_API_ENABLED=true
 
 ######### Execution Layer Config #########
 
diff --git a/.env.sample.hoodi b/.env.sample.hoodi
index f4bb0f7c..7538ac6c 100644
--- a/.env.sample.hoodi
+++ b/.env.sample.hoodi
@@ -33,7 +33,7 @@ COMPOSE_PROFILES=${EL},${CL},${VC},${MEV}
 COMPOSE_FILE=compose-el.yml:compose-cl.yml:compose-vc.yml:compose-mev.yml:docker-compose.yml
 
 # Enables Builder API.
-#BUILDER_API_ENABLED=
+BUILDER_API_ENABLED=true
 
 ######### Execution Layer Config #########
 
diff --git a/.env.sample.mainnet b/.env.sample.mainnet
index 113a636d..6b84c9f3 100644
--- a/.env.sample.mainnet
+++ b/.env.sample.mainnet
@@ -33,7 +33,7 @@ COMPOSE_PROFILES=${EL},${CL},${VC},${MEV}
 COMPOSE_FILE=compose-el.yml:compose-cl.yml:compose-vc.yml:compose-mev.yml:docker-compose.yml
 
 # Enables Builder API.
-#BUILDER_API_ENABLED=
+BUILDER_API_ENABLED=true
 
 ######### Execution Layer Config #########
 
diff --git a/docker-compose.yml b/docker-compose.yml
index a0de584c..5b88e07e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -98,7 +98,7 @@ services:
       - CHARON_P2P_TCP_ADDRESS=0.0.0.0:${CHARON_PORT_P2P_TCP:-3610}
       - CHARON_VALIDATOR_API_ADDRESS=0.0.0.0:3600
       - CHARON_MONITORING_ADDRESS=0.0.0.0:3620
-      - CHARON_BUILDER_API=${BUILDER_API_ENABLED:-false}
+      - CHARON_BUILDER_API=${BUILDER_API_ENABLED:-true}
       - CHARON_FEATURE_SET_ENABLE=${CHARON_FEATURE_SET_ENABLE:-}
       - CHARON_LOKI_ADDRESSES=${CHARON_LOKI_ADDRESSES:-http://loki:3100/loki/api/v1/push}
       - CHARON_LOKI_SERVICE=charon
@@ -130,7 +130,7 @@ services:
     environment:
       BEACON_NODE_ADDRESS: http://charon:3600
       NETWORK: ${NETWORK}
-      BUILDER_API_ENABLED: ${BUILDER_API_ENABLED:-false}
+      BUILDER_API_ENABLED: ${BUILDER_API_ENABLED:-true}
       BUILDER_SELECTION: ${BUILDER_SELECTION:-builderalways}
     labels:
       - "promtail-monitored=${LODESTAR_PROMTAIL_MONITORED:-true}"