modelcontextprotocol/mcpb
A specification, CLI tool, and runtime for packaging and installing local MCP servers as single-click desktop extensions.
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MCP Bundles (.mcpb) are zip archives containing MCP servers with a manifest describing their capabilities, enabling one-click installation in desktop apps. The repository provides the bundle specification, a CLI for creating bundles, and the runtime code used by Claude for macOS and Windows to load and verify bundles. This open-sources the tooling previously used only in Claude to enable easy distribution and installation of local MCP servers across the ecosystem.
Frequently asked
- What is modelcontextprotocol/mcpb?
- A specification, CLI tool, and runtime for packaging and installing local MCP servers as single-click desktop extensions.
- Is mcpb open source?
- Yes — modelcontextprotocol/mcpb is an open-source project tracked on heatdrop.
- What language is mcpb written in?
- modelcontextprotocol/mcpb is primarily written in TypeScript.
- How popular is mcpb?
- modelcontextprotocol/mcpb has 2k stars on GitHub.
- Where can I find mcpb?
- modelcontextprotocol/mcpb is on GitHub at https://github.com/modelcontextprotocol/mcpb.