Border for ChatGPT

com.clawhard/border

Debug CORS: send the real preflight, get Chrome's exact error and the headers that fix it.

client:ChatGPT transport:streamable-http tools:2

Install Border in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://border.clawhard.com/mcp

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