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ToolHigh credibilitymodelcontextprotocol.io · Anthropic & the MCP project · November 25, 2024

Model Context Protocol Specification

Our summary

The open protocol standardizing how LLM applications connect to external tools and data — JSON-RPC messages, stateful connections, and explicit client/server capability negotiation (the 'handshake').

Why it matters

The contract an integration test must hold the system to: the handshake, tool schemas, and capability negotiation are exactly the deterministic seams that break silently.

Cited by these methods

Published June 26, 2026

Cite this

Qlarify Labs. (2026). Model Context Protocol Specification. Retrieved from https://labs.qlarify.fi/references/mcp-specification