Groundcheck

Overview

Groundcheck is an MCP server that verifies claims, resolves FIGI identity, extracts claims, and signs x402 delivery receipts through the Model Context Protocol. By exposing these capabilities as MCP tools, it lets AI assistants work with fact-checking and verification workflows directly without switching between applications.

You can connect to the hosted endpoint at https://groundcheck.seiche.info/mcp without any local setup, or install and run it locally using npx -y groundcheck-mcp. The latest release is v0.7.1 under the MIT license, with source code available at beepboop2025/groundcheck on GitHub.

Groundcheck is listed in the AI & Agents category and works with any MCP client including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server, claim your listing on mcp.site to verify ownership and keep information up to date.

Installation

Settings → Connectors → Add custom connector
Name: Groundcheck
URL:  https://groundcheck.seiche.info/mcp