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Build a desktop extension with MCPB changedconnectors/building/mcpb

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Upstream edited this page at 25 Sep 2026 18:00 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 22 Oct 2026 18:07 UTC.

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77This page is for developers packaging a local MCP server for Claude Desktop, whether for internal use or private distribution. It covers when to choose MCPB over a remote server, building and packing the bundle, the manifest, and how users install the result.
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9For a directory listing, build a remote MCP server, which reaches people on every surface, or include the local server in a plugin, as [Decide what to include in your plugin](/docs/connectors/building/what-to-build) explains.
9For a directory listing, build a remote MCP server, which reaches people on every surface, or include the local server in a plugin, as [Decide what to include in your plugin](/docs/connectors/building/what-to-build.md) explains.
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1111> [!NOTE]
1212>
13> * If you're building a remote server, see [Build an MCP server for Claude](/docs/connectors/building/index)
14> * If you're deploying desktop extensions across a Team or Enterprise organization, see [Install a local connector in the desktop app](/docs/connectors/custom/add-unlisted#install-a-local-connector-in-the-desktop-app)
13> * If you're building a remote server, see [Build an MCP server for Claude](/docs/connectors/building/index.md)
14> * If you're deploying desktop extensions across a Team or Enterprise organization, see [Install a local connector in the desktop app](/docs/connectors/custom/add-unlisted.md#install-a-local-connector-in-the-desktop-app)
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1616## Decide when to build an MCPB
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128128 
129129## Distribute your MCPB
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131Users install the `.mcpb` file themselves in Claude Desktop. Desktop extension listings in the directory are deprecated, and the directory no longer accepts MCPB submissions. To distribute a local MCP server through the directory, include it in a [plugin](/docs/plugins/overview).
131Users install the `.mcpb` file themselves in Claude Desktop. Desktop extension listings in the directory are deprecated, and the directory no longer accepts MCPB submissions. To distribute a local MCP server through the directory, include it in a [plugin](/docs/plugins/overview.md).
132132 
133133### Understand how users install your MCPB
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174174## Next steps
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176* [Install a local connector in the desktop app](/docs/connectors/custom/add-unlisted#install-a-local-connector-in-the-desktop-app): deploy local MCP servers for Claude Desktop across a Team or Enterprise organization
177* [Submit your plugin](/docs/plugins/submit): list a plugin that includes your local MCP server in the directory
176* [Install a local connector in the desktop app](/docs/connectors/custom/add-unlisted.md#install-a-local-connector-in-the-desktop-app): deploy local MCP servers for Claude Desktop across a Team or Enterprise organization
177* [Submit your plugin](/docs/plugins/submit.md): list a plugin that includes your local MCP server in the directory
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