Servers, SDKs and registries for the Model Context Protocol.
Model Context Protocol Servers.
Pricing: not verified yet, check the tool's site
Engineering note: Collection of MCP servers maintained under the official modelcontextprotocol GitHub org. Start here to see how reference servers are structured before writing your own.
The official Python SDK for Model Context Protocol servers and clients.
Pricing: not verified yet, check the tool's site
Engineering note: Official SDK, so it tracks the protocol directly. Covers both the server and client side in Python.
The fast, Pythonic way to build MCP servers and clients.
Pricing: not verified yet, check the tool's site
Engineering note: Python library for building MCP servers and clients. Compare its API against the official SDK before choosing.
Visual testing tool for MCP servers.
Pricing: not verified yet, check the tool's site
Engineering note: Use it to poke at a server you are building without wiring up a full agent first.
Registry and connection layer that connects agents to thousands of tools and services, with auth, credentials and sessions handled for you.
Pricing: not verified yet, check the tool's site
Engineering note: Homepage lists hosted MCP servers with usage counts and a CLI (npx smithery) for adding and calling tools. Its connection auth is powered by the open-source agent.pw. Check how credentials are stored before sending real accounts through any hosted gateway.