# MCP Registry (Official)

The canonical open-source specification and docs for the Model Context Protocol. MCP Registry (Official) is free, with no paid plan attached, at modelcontextprotocol.io.

## Facts

- **Pricing tier:** Free
- **Works on:** Web, API
- **Works in browser:** Yes

## Capabilities

- The canonical open-source specification and docs for the Model Context Protocol
- Reference server/client SDKs and the official server registry
- Backed across the ecosystem — Claude, ChatGPT, VS Code, Cursor, MCPJam all implement it

## FAQ

### What is MCP Registry (Official)?

MCP Registry (Official) is listed under MCP Ecosystem, in the AI Agents & Automation category on Flocci AI Tools. The canonical open-source specification and docs for the Model Context Protocol. It is free, with no paid plan attached, and it lives at modelcontextprotocol.io.

### Is MCP Registry (Official) free?

MCP Registry (Official) is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 396 entries on Flocci AI Tools with no upgrade path built in.

### Can I use MCP Registry (Official) in a browser, or is there an app?

MCP Registry (Official) works in a normal browser tab with no install. It is available on the web and an API.

### What can MCP Registry (Official) do?

MCP Registry (Official) does 3 things the catalog singles out: The canonical open-source specification and docs for the model context protocol; reference server/client sdks and the official server registry; backed across the ecosystem — claude, chatgpt, vs code, cursor, mcpjam all implement it.

### What is the best free alternative to MCP Registry (Official)?

Agent2Agent (A2A) Protocol is the closest free alternative: it sits in the same MCP Ecosystem sub-category and is free. FastMCP, GitHub MCP Server and MCP Inspector also start free. The full list is on the alternatives page.

## Related

- [MCP Registry (Official) alternatives](https://aitools.flocci.in/alternatives/mcp-registry-official)
- [MCP Ecosystem](https://aitools.flocci.in/category/ai-agents-automation/mcp-ecosystem)
- [Best free MCP servers, registries and toolkits](https://aitools.flocci.in/best/best-mcp-ecosystem)
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Source: Flocci AI Tools — https://aitools.flocci.in/tool/mcp-registry-official

Facts last verified: October 2026