Model Context Protocol (MCP) Security Overview
This page consolidates key concepts about MCP authorization and essential security best practices, providing concise guidance to help you design, implement, and operate MCP‑based systems securely.
Understanding Authorization in MCP
Authorization in MCP defines who may access protected resources and which operations they can perform. It builds on OAuth 2.1 conventions, allowing servers to require token‑based access, support dynamic client registration, and enforce audience validation. Proper use reduces unauthorized data exposure, supports auditing, and enables fine‑grained permission control.
Understanding Authorization in Model Context Protocol (MCP)Understanding Security Best Practices in MCP
Best‑practice guidance for MCP covers threat modeling, consent handling, token validation, and mitigation of common attacks such as confused‑deputy, SSRF, and session hijacking. Implement per‑client consent, enforce HTTPS, block private IPs, validate redirects, and avoid token passthrough. Following these measures strengthens the security posture of MCP deployments.
Understanding Security Best Practices in Model Context Protocol (MCP)