Groundtruth — Ask Real Humans for ChatGPT

app.vercel.groundtruth-ruby/groundtruth

Human-in-the-loop user research: ask real people what the web can't answer, get verbatim replies

client:ChatGPT transport:streamable-http tools:2

Install Groundtruth — Ask Real Humans in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://groundtruth-ruby.vercel.app/api/mcp

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