diff --git a/.circleci/config.yml b/.circleci/config.yml
index eed94b77b9..e2f1f27b6d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3597,6 +3597,7 @@ jobs:
               -p 4000:4000 \
               -e DATABASE_URL=postgresql://postgres:postgres@host.docker.internal:5432/circle_test \
               -e LITELLM_MASTER_KEY="sk-1234" \
+              -e ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY \
               -e AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID \
               -e AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY \
               -e AWS_REGION_NAME="us-east-1" \
diff --git a/tests/proxy_e2e_anthropic_messages_tests/test_config.yaml b/tests/proxy_e2e_anthropic_messages_tests/test_config.yaml
index e9abb2f0cc..ae1514e4e4 100644
--- a/tests/proxy_e2e_anthropic_messages_tests/test_config.yaml
+++ b/tests/proxy_e2e_anthropic_messages_tests/test_config.yaml
@@ -2,6 +2,7 @@ model_list:
   - model_name: claude-sonnet-4-5-20250929
     litellm_params:
       model: "anthropic/claude-sonnet-4-5-20250929"
+      api_key: os.environ/ANTHROPIC_API_KEY
 
   - model_name: bedrock-claude-sonnet-3.5
     litellm_params: