diff --git a/src/agents/model-auth.ts b/src/agents/model-auth.ts
index 680d0f53c..cbce88c2a 100644
--- a/src/agents/model-auth.ts
+++ b/src/agents/model-auth.ts
@@ -281,6 +281,7 @@ export function resolveEnvApiKey(provider: string): EnvApiKeyResult | null {
     moonshot: "MOONSHOT_API_KEY",
     "kimi-code": "KIMICODE_API_KEY",
     minimax: "MINIMAX_API_KEY",
+    redpill: "REDPILL_API_KEY",
     synthetic: "SYNTHETIC_API_KEY",
     venice: "VENICE_API_KEY",
     mistral: "MISTRAL_API_KEY",