GitHub MCP

Authenticated toolkits that give AI agents access to SaaS apps, via MCP or API.

Tool layer that gives AI agents secure, managed access to 1000+ toolkits and 20,000+ tools across SaaS apps, exposed via MCP or direct APIs. It handles authentication, tool search, and context management, and its MCP Gateway hands each team a managed endpoint to paste into Claude, Cursor, or ChatGPT. The core is MIT-licensed; a free tier covers 20K tool calls per month.

Registry and hosting platform for Model Context Protocol servers.

A central hub for the MCP ecosystem: browse, install, and configure thousands of community-built MCP servers from one place, or deploy your own to Smithery's infrastructure and access it remotely. The CLI installs and manages servers without hand-editing JSON config, and the hosted tier adds managed OAuth and persistent connections so agents get authenticated tool access. Lists over 6,000 servers across developer tools, data connectors, and productivity integrations.

Microsoft's official MCP server for browser automation, driven by Playwright.

An open-source Model Context Protocol server from Microsoft that lets LLMs and agents browse and act on the web through Playwright. It exposes 40+ tools for navigation, forms, clicking, network mocking, tracing, and more, operating on structured accessibility snapshots rather than pixels so each interactive element gets a deterministic ref. Works with Claude, VS Code, Cursor, Windsurf, and any MCP client.

Postgres + auth + edge functions from inside the agent.

MCP server that exposes Supabase project ops — list tables, apply migrations, deploy edge functions, fetch advisors. Removes a context-switch cliff between code and database.