Grantex

Grantex brings OAuth-style authorization to AI agents through scoped delegation tokens, audit trails, and per-agent identity. The MCP server exposes operations for agent registration, user consent flows, token exchange, and verification. You get signed JWTs with explicit scopes like calendar:read or payments:initiate:max_500, offline verification via JWKS, and granular revocation without rotating root credentials. It includes anomaly detection with built-in rules, Commerce V1 for agentic checkout flows (currently mock-provider only), and integrations for Anthropic, LangChain, OpenAI, and FastAPI. Reach for this when your agent needs to act on behalf of users without full API key access, or when you need audit logs and spending limits baked into the authorization layer. Self-hostable, Apache 2.0, with SDKs for TypeScript, Python, and Go.