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HomeDocsModel Context Protocol 29 Oct 2026
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Extensions Overview changedextensions/overview

Nearest release: v2.1.314, published 12 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 29 Oct 2026 11:37 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 30 Oct 2026 18:37 UTC.

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3232 
3333### MCP Authorization Extensions
3434 
35> **[modelcontextprotocol/ext-auth](https://github.com/modelcontextprotocol/ext-auth)**
35> [card] [modelcontextprotocol/ext-auth](https://github.com/modelcontextprotocol/ext-auth)
3636>
3737> Extensions for supplementary authorization mechanisms beyond the core
3838> specification.
from line 44
4444 
4545### MCP Apps
4646 
47> **[modelcontextprotocol/ext-apps](https://github.com/modelcontextprotocol/ext-apps)**
47> [card] [modelcontextprotocol/ext-apps](https://github.com/modelcontextprotocol/ext-apps)
4848>
4949> Extensions for interactive UI elements in conversational MCP clients.
5050 
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5656 
5757### MCP Tasks
5858 
59> **[modelcontextprotocol/ext-tasks](https://github.com/modelcontextprotocol/ext-tasks)**
59> [card] [modelcontextprotocol/ext-tasks](https://github.com/modelcontextprotocol/ext-tasks)
6060>
6161> Extensions for long-running operations.
6262 
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6666 
6767### Skills over MCP
6868 
69> **[modelcontextprotocol/ext-skills](https://github.com/modelcontextprotocol/ext-skills)**
69> [card] [modelcontextprotocol/ext-skills](https://github.com/modelcontextprotocol/ext-skills)
7070>
7171> Discover and read Agent Skills from MCP servers.
7272 
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7979 
8080### MCP Server Cards
8181 
82> **[modelcontextprotocol/ext-server-card](https://github.com/modelcontextprotocol/ext-server-card)**
82> [card] [modelcontextprotocol/ext-server-card](https://github.com/modelcontextprotocol/ext-server-card)
8383>
8484> HTTP discovery of MCP server metadata.
8585 
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