modelcontextprotocol/registry
Registry
The Model Context Protocol (MCP) Registry is an official service for publishing and discovering MCP servers, providing a centralized namespace system with integrated authentication and domain verification. It functions as both a registry for server discovery and a publishing tool that enforces ownership proof through domain-based organization.
The registry distinguishes itself through a CLI-driven publishing pipeline that bundles server metadata, validates authentication, and submits to the registry API. It implements DNS-based domain verification, requiring a TXT record or HTTP challenge file to link namespaces to controlled domains, preventing name collisions. Authentication is handled through GitHub OAuth for user login and GitHub OIDC for automated CI/CD workflows, enabling serverless publishing from GitHub Actions without stored secrets.
The system manages authenticated sessions using short-lived access tokens obtained from OAuth or OIDC flows, stored locally for CLI use. It supports automated CI/CD pipeline authentication, allowing MCP servers to be published directly from GitHub Actions workflows in automated deployment pipelines.
Features
- Official Registries - Provides the official, centrally managed registry for publishing and discovering MCP servers with authentication and namespace enforcement.
- CLI Publishing Pipelines - Ships a CLI-driven publishing pipeline that bundles metadata, validates authentication, and submits to the registry API.
- Registry Publishing Tools - Provides a command-line interface for publishing MCP servers to the registry with authentication support.
- Domain-Based - Organizes published servers under verified domain namespaces, preventing name collisions and ensuring ownership proof.
- Domain Ownership Verification - Implements DNS-based domain verification via TXT records and HTTP challenges to claim namespaces in the registry.
- GitHub OAuth Integrations - Authenticates users via GitHub OAuth flow, issuing session tokens for CLI access to the registry.
- CI/CD Authentication Helpers - Authenticates from GitHub Actions workflows to publish MCP servers in automated deployment pipelines.
- GitHub OIDC Authentication - Authenticates GitHub Actions workflows via OpenID Connect tokens, enabling serverless publishing without stored secrets.
- MCP Server Collections - Official metadata service for discovering and publishing MCP servers.
