OpenPlan is an MCP (Model Context Protocol) server that helps AI agents decompose goals into costed execution plans, checkpoint progress with deviation tracking, and learn from past project data. Published as @openplan/mcp on npm.
Built with FastMCP (Zod schemas for input validation), SQLite via better-sqlite3 / Drizzle ORM, and structured logging. Three tools (plan, checkpoint, review) and three resources for route state, profiles, and sync status. Auto-creates config and SQLite database on first run — zero setup needed.
Available as a CLI with commands for auth, subscription management via Stripe, mesh sync, and export. 203 commits, MIT license.