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Model Context Protocol (MCP)

Open JSON-RPC protocol that lets AI applications connect to external tools, data sources and prompts through MCP servers.

Reference by Created by Anthropic; stewarded by the MCP maintainers

IndexedLicense unknown★ 9,524
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About

Defines how a host application and a server exchange tools, resources and prompts over JSON-RPC, plus optional extensions such as Tasks and Apps.

Use cases: api-integration

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About the protocol

Current version
2026-07-28blog.modelcontextprotocol.io
Maintainer
Created by Anthropic; stewarded by the MCP maintainersblog.modelcontextprotocol.io
Governance
Agentic AI Foundation (AAIF), a directed fund under the Linux Foundation, since 2025-12-09blog.modelcontextprotocol.io
Launched
2024-11-25anthropic.com
  • Anthropic reports adoption by ChatGPT, Cursor, Gemini, Microsoft Copilot and Visual Studio Code. anthropic.com
  • More than 10,000 active public MCP servers as of December 2025. anthropic.com

Listings that use it

45,426 visible listings declare Model Context Protocol (MCP): 44,833 connectors, 226 plugins, 131 agents, 96 agent infrastructure, 67 harnesses & sdks, 28 no-code builders, 23 observability & evals, 22 identity, auth & payments.

Signals

Stars
9,524
Forks
1,881
Open issues
62
Last commit
Oct 23, 2026 (7 days ago)
Last release
Jul 28, 2026 (3 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Version
2026-07-28
License
License unknown
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

Model Context Protocol (MCP). Agent Mart. https://agentmart.dev/reference/model-context-protocol (last updated 2026-10-24)