Caniuse MCP

Name: Caniuse MCP
Availability: InStock
Author: yujeongjeon

by yujeongjeon

Browser compatibility and web API support data powered by CanIUse, MDN BCD, and Web Features.

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Works in:VS Code Copilot

Exposes:Tools

View on GitHub Docs

What it does

Caniuse MCP connects AI assistants to the most authoritative web compatibility databases. It enables LLMs to verify if a specific CSS property, HTML element, or JavaScript API is supported across different browser versions, preventing the generation of broken or incompatible code.

Tools

caniuse_feature: Look up detailed browser compatibility for a specific web feature (e.g., "flexbox") across major browsers.
browserslist_compatibility_check: Validate feature support against a specific browserslist query (e.g., "> 1%, last 2 versions").
list_tools: Lists all available compatibility tools provided by the server.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "caniuse": {
      "command": "npx",
      "args": ["-y", "caniuse-mcp"]
    }
  }
}

Supported hosts

Claude Desktop
VS Code Copilot

Quick install

npm install -g caniuse-mcp

Information

Pricing: free
Published: 5/30/2026
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Related Apps

Choose your AI client and follow the steps below.

Claude Desktop

{
  "mcpServers": {
    "caniuse": {
      "command": "npx",
      "args": ["-y", "caniuse-mcp"]
    }
  }
}

VS Code Copilot

{
  "servers": {
    "caniuse": {
      "command": "npx",
      "args": ["-y", "caniuse-mcp"]
    }
  }
}