Codex Router External Models

Skill by ara.so — Codex Skills collection.

Overview

Codex Router is a local credential-isolating proxy that enables Anthropic Claude, Kimi, DeepSeek, Grok, and other external models inside Codex App/CLI and Cursor. It:

• Merges external models into the native Codex picker
• Isolates API keys and OAuth sessions per provider
• Preserves existing Codex GPT models, profiles, and ChatGPT login
• Runs as a background service on localhost
• Supports safe migration from older versions with rollback

Targets:

• Codex App/CLI: Responses API with native catalog merge (stable)
• Cursor: Manual OpenAI-compatible base URL (experimental)