Fact Checker API is a Model Context Protocol (MCP) server: Verify claims with web evidence. Returns sources and verdict. x402 micropayment. Because it speaks the Model Context Protocol, AI assistants can use Fact Checker API as a set of callable tools instead of you copy-pasting between apps.
It's a hosted (remote) server — point your client at https://fact-checker.api.klymax402.com/mcp and you're connected, with nothing to install locally. The current release is v1.1.0, published under the MIT license, with source at Br0ski777/fact-checker-x402 on GitHub.
On mcp.site, Fact Checker API sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Fact Checker API for Br0ski777, claim this listing to verify ownership, earn the Verified badge, and keep the details current.