Groundtruth — Ask Real Humans for Claude Code

app.vercel.groundtruth-ruby/groundtruth

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

client:Claude Code transport:streamable-http tools:2

Install Groundtruth — Ask Real Humans in Claude Code

run in your project directory

claude mcp add --transport http groundtruth https://groundtruth-ruby.vercel.app/api/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs