Topic · Standard
Model Context Protocol (MCP)
The Model Context Protocol (MCP) is an open standard for connecting AI applications to external tools and data. Anthropic introduced it in November 2024; a year later it was donated to a Linux Foundation-hosted foundation, and it is now supported across most major AI assistants and coding agents.
Fact file
AnnouncedNovember 25, 2024, by Anthropic
Message formatJSON-RPC 2.0
Server featuresResources, prompts, tools
Current spec version2026-07-28
AAIF founding projectsMCP (Anthropic), goose (Block), AGENTS.md (OpenAI)
MCP RegistryIn preview (as of Oct 8, 2026)
Claude support for MCP AppsInteractive connectors via MCP Apps since January 26, 2026 (Anthropic)
AAIF platinum members (at launch)AWS, Anthropic, Block, Bloomberg, Cloudflare, Google, Microsoft, OpenAI
Related
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Latest on Model Context Protocol (MCP)
Oct 9Developer tools · NewsOpenAI's Agents API puts the Codex harness behind one endpoint: what developers get, and what they give upOct 9Agents · AnalysisThe case against unattended agents: what went wrong, and how sandboxing actually worksOct 9Developer tools · GuideBuild your first agent with the Claude Agent SDK (TypeScript, October 2026)Oct 9Developer tools · ExplainerMCP resources vs tools vs prompts: who decides, and when to use eachOct 9Developer tools · GuideBuild a local MCP server with the official TypeScript SDK (v2): one tool, one resource, one promptOct 9Agents · ExplainerWhat is MCP? The Model Context Protocol explained (2026 edition)
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Timeline
NOV 2024Announced