Sinatra for ChatGPT

dev.sinatra/sinatra

Hosted coding agent: start, follow up on and stop tasks that can open GitHub pull requests.

client:ChatGPT transport:streamable-http

Install Sinatra in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.sinatra.dev/v1/mcp

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