RelaySwitch for ChatGPT

io.relayswitch/gateway

Every major chat, image and video model on one prepaid key. OpenAI, Anthropic and Gemini formats.

client:ChatGPT transport:streamable-http tools:15

Install RelaySwitch in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.relayswitch.io/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs