OpenCheap for ChatGPT

si.opencheap/opencheap

Run an OpenCheap LLM API account: model prices, spend-capped keys, budgets, usage and gateways.

client:ChatGPT transport:streamable-http

Install OpenCheap in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://app.opencheap.si/api/v1/mcp

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