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Model Context Protocol

Open standard that lets AI applications connect to external data sources, tools and workflows through a shared protocol.

Actively maintained

Developer toolsFor developersOpen source
modelcontextprotocol.io ↗GitHubWikipediaWikidata
Open modelcontextprotocol.ioAlternativesSet it up for my team
Model Context Protocol: data, price, alternatives
At a glancechecked Oct 31, 2026

192k ★

Use not read yet

For
developers building AI applications, agents, or servers that connect to external data and tools
Activity
Actively maintainedrelease 6 days ago · site updated 3 days ago
Company
Anthropic · since 2021 · ~2,500 peopleper Wikidata · per Wikidata
How it runs
SDK
Used for
  • give an AI assistant access to a calendar and notes
  • generate a web app from a Figma design
  • connect a chatbot to several internal databases
Worth knowingcomputed from what we read · each with its source
  • On the web since 2021, older than 87% of its shelfINITE Atlas
  • 192,114 stars on GitHubGitHub ↗
  • Has an MCP server (1 in the registry)public registry →
  • Publishes llms.txt, a file written for AI assistantsmodelcontextprotocol.io ↗
The companyeach fact with its source · read Oct 31, 2026
  • Made byAnthropicper Wikidata
  • Founded2021-01-26per Wikidata
  • People~2,500per Wikidata · as of 2026
  • HeadquartersSan Franciscoper Wikidata
  • Industryartificial intelligenceper Wikidata
How a program reaches itfound, not claimed · read Oct 31, 2026
  • MCP serverhttps://modelcontextprotocol.io/mcpnot in the official registry: answered when asked
  • Stateanswers, 3 toolschecked 2026-10-31
  • Address to connectmodelcontextprotocol.io/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Model Context Protocol?

    Open standard that lets AI applications connect to external data sources, tools and workflows through a shared protocol. It is listed in the Atlas under Developer tools.

  • Who is Model Context Protocol for?

    developers building AI applications, agents, or servers that connect to external data and tools

  • Is Model Context Protocol still maintained?

    Actively maintained: release 6 days ago · site updated 3 days ago.

  • What are alternatives to Model Context Protocol?

    In Developer tools, by use: Replit, Brandfetch, Fusion, Browserbase, Softr.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk