What is Anthropic MCP Specification — Protocol Reference?

Official Model Context Protocol specification reference. Understand MCP architecture, message format, tool definitions, resource types, and transport protocols for building servers.

Is Anthropic MCP Specification — Protocol Reference free to use?

Yes. Anthropic MCP Specification — Protocol Reference is freely available on TokRepo. Check the Source & Thanks section on the asset page for the specific open-source license.

How do I install Anthropic MCP Specification — Protocol Reference?

Visit the asset page on TokRepo and click "Copy for agent" to get the installation instructions. Most assets can be installed with a single command.

Anthropic MCP Specification — Protocol Reference

What is MCP?

Anthropic's open standard defining how AI applications connect to external tools and data. Just as HTTP is to the web, MCP is the standard protocol for AI integration.

TL;DR: Anthropic's open standard. Protocol for AI to connect to external tools and data. Defines three primitives: Tools/Resources/Prompts. JSON-RPC communication. 200+ servers. The USB-C of AI integration.

Protocol Architecture

Three Primitives

Tools — Actions the AI can execute
Resources — Data the AI can read
Prompts — Reusable prompt templates

Transports

stdio (local), HTTP+SSE (remote), Streamable HTTP (modern remote).

SDKs

TypeScript, Python, Kotlin, C#.

FAQ

Q: Claude-only? A: No — it's an open standard; Cursor, Codex, and more support it.

Q: Can I write it in Python? A: Yes — the mcp package is fully featured.