Groundtruth — Ask Real Humans for Claude.ai

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.ai transport:streamable-http tools:2

Install Groundtruth — Ask Real Humans in Claude.ai

Settings → Connectors → Add custom connector

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

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

ask_humans
check_answers

Groundtruth — Ask Real Humans in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

Groundtruth — Ask Real Humans MCP server