MCP Registry Validator — Check Endpoints Actually Resolve for ChatGPT

io.github.operatorsheets/mcp-uptime

Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.

client:ChatGPT transport:streamable-http tools:4

Install MCP Registry Validator — Check Endpoints Actually Resolve in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp-uptime.theopslog.workers.dev/mcp

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