diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6386ac03044..889a7fedbc5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Models/Codex: include `apiKey` in the codex provider catalog output so the Pi ModelRegistry validator no longer rejects the entry and silently drops all custom models from every provider in `models.json`. (#66180) Thanks @hoyyeva.
+
 ## 2026.4.14-beta.1
 
 ### Changes
diff --git a/extensions/codex/provider.ts b/extensions/codex/provider.ts
index 2cbcc6f076d..a3365ba7671 100644
--- a/extensions/codex/provider.ts
+++ b/extensions/codex/provider.ts
@@ -114,6 +114,7 @@ export async function buildCodexProviderCatalog(
   return {
     provider: {
       baseUrl: CODEX_BASE_URL,
+      apiKey: "codex-app-server",
       auth: "token",
       api: "openai-codex-responses",
       models,