diff --git a/src/agents/model-auth-env-vars.ts b/src/agents/model-auth-env-vars.ts
index c366138207ce..568e7007c59b 100644
--- a/src/agents/model-auth-env-vars.ts
+++ b/src/agents/model-auth-env-vars.ts
@@ -35,6 +35,7 @@ export const PROVIDER_ENV_API_KEY_CANDIDATES: Record<string, string[]> = {
   ollama: ["OLLAMA_API_KEY"],
   vllm: ["VLLM_API_KEY"],
   kilocode: ["KILOCODE_API_KEY"],
+  bailian: ["BAILIAN_API_KEY"],
 };
 
 export function listKnownProviderEnvApiKeyNames(): string[] {