What is a .mcpb File?

The easiest way to install MCP bundles directly into Claude Desktop with a single double-click.

Think of It Like an App Bundle

Just like .dmg files on Mac or .exe files on Windows

A .mcpb file is the "app bundle" for AI tools

Anthropic created the .mcpb format as the standard way to package and install MCP servers. It's portable, simple, and works with a double-click.

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One File

Everything bundled together

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One Click

Double-click to install

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Cloud Connected

Links to MCPBundles servers

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MCPBundles Difference

MCPBundles .mcpb files are special—they don't run a local server. Instead, they connect to our cloud infrastructure where your bundles are hosted with automatic updates, centralized credentials, and multi-provider tool aggregation.

How to Install a .mcpb File

Four simple steps to get started

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Before You Start

You'll need Claude Desktop installed on your computer. Download it from claude.ai/download

1

Get Your API Key

Go to your MCPBundles Settings and copy your API key. You'll need this to connect to your bundles.

mcpb_1a2b3c4d5e6f7g8h9i0j...
2

Download the Bundle

Visit any bundle page, click "Download .mcpb", and save the file to your computer.

sales-pipeline-bundle.mcpb
3

Double-Click to Install

Double-click the .mcpb file. Claude Desktop will automatically install it and prompt you to enter your API key.

Bundle installed successfully
4

Start Using Your Tools

Open Claude Desktop and your bundle's tools are ready! Ask Claude what tools it has access to.

"What sales tools do you have access to?"

Two Ways to Connect

MCP URL works everywhere, .mcpb is optimized for Claude Desktop

MCP URL Method

Universal - works everywhere

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Universal Compatibility

Works with ChatGPT, Cursor, Windsurf, Claude Code, and any MCP client

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Copy-Paste Setup

Just copy the URL and paste into your AI's connector settings

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Instant Updates

Bundle changes take effect immediately, no reinstallation

Example URL:
https://mcp.mcpbundles.com/bundle/sales-pipeline

.mcpb File Method

Claude Desktop optimized

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One-Click Installation

Double-click to install, no manual configuration needed

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Claude Desktop Native

Built specifically for Claude Desktop's installation system

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Easy Sharing

Download once, share the file with your team

Example file:
sales-pipeline-bundle.mcpb

🔗 Both Connect to the Same Cloud Bundle

Whether you use the MCP URL or download the .mcpb file, you're accessing the same cloud-hosted bundle with the same tools, credentials, and functionality. Choose the method that works best for your workflow.

The MCPBundles Advantage

Our .mcpb files aren't just installers—they're bridges to enterprise-grade infrastructure

Cloud-Hosted

No local server setup or maintenance. The .mcpb file connects to our cloud infrastructure.

Automatic Updates

Bundle improvements and new tools deploy automatically—no reinstallation needed.

Centralized Credentials

Configure API keys once in your dashboard. They're encrypted and injected automatically.

Multi-Provider

One bundle aggregates tools from 5+ different APIs with unified authentication.

Ready to Try .mcpb Installation?

Browse our bundle library and download your first .mcpb file in seconds