MCPs › Data & APIs › Lenz Fact-Check
Fact-check factual claims against independent sources. assess gives a fast multi-model verdict (True → False) with bucketed confidence in ~5–10s; verify runs a deeper research → debate → panel investigation for high-stakes claims and returns sourced, pollable results. ask answers grounded follow-ups on a completed verification. Verdicts are directional, not absolute. Connect via OAuth or a free Lenz API key.
Not monetized yet
Turn Lenz Fact-Check’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
Install Lenz Fact-Check
For anyone using Lenz Fact-Check — no Lulu account neededclaude mcp add --transport http lenz-fact-check https://fact-check--lenz.run.tools
Real-time weather for any city, built on the lulu-ads widget gallery. First-party, free forever.
View server →FAQ
Run: claude mcp add --transport http lenz-fact-check https://fact-check--lenz.run.tools
Yes — it’s a remote MCP server, so no local install is needed.
ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://fact-check--lenz.run.tools.
Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
Unrated out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
Similar servers
Works well together