MuiRouterGPT API Gateway
Use GPT via one API
MuiRouter speaks OpenAI's API natively, so GPT requests pass straight through with no translation layer. The same key also reaches the native Responses API for Codex CLI, plus Claude, Gemini and Grok.
Everything you need to call GPT
Zero translation overhead
GPT requests use MuiRouter's native request shape — no compatibility layer sits between your client and the OpenAI Chat Completions API.
Native Responses API for Codex
MuiRouter also exposes OpenAI's native /v1/responses endpoint, so Codex CLI and other Responses API clients work by pointing their base URL at MuiRouter.
Image generation included
Generate images with gpt-image-2 through the same endpoint and key as chat.
One wallet for every model
Mix GPT calls with Claude, Gemini or Grok under the same key, usage log and balance.
GPT API gateway FAQ
- Do I need to change my OpenAI client code to use MuiRouter?
- Just the Base URL and API key. Request and response shapes match the OpenAI API exactly, since that's MuiRouter's native format.
- Does MuiRouter support the Responses API for Codex CLI?
- Yes. MuiRouter exposes a native /v1/responses endpoint — point Codex's base URL at MuiRouter and use your sk-gw- key.
- Can I generate images through the same API?
- Yes. gpt-image-2 is available through the same endpoint and key as GPT chat completions.
Start calling GPT today
Create a free account, grab a key, and point your OpenAI SDK or Codex CLI at MuiRouter in minutes.