MCP server

Bundlephobia

io.github.pipeworx-io/bundlephobia

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Bundlephobia MCP — npm bundle-size analysis

Working at last checkOfficial: pipeworx.io's GitHub account (pipeworx-io)About 26,809 tokens per request once connected46 tools

https://gateway.pipeworx.io/bundlephobia/mcp

At a glance

Type: MCP server
Publisher: pipeworx.io (verified by the MCP Registry)
Status: Working at last check
Tools: 46
Token cost: About 26,809 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http bundlephobia https://gateway.pipeworx.io/bundlephobia/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.bundlephobia]
url = "https://gateway.pipeworx.io/bundlephobia/mcp"

Gemini CLI

{"mcpServers":{"bundlephobia":{"httpUrl":"https://gateway.pipeworx.io/bundlephobia/mcp"}}}

Cursor

{"mcpServers":{"bundlephobia":{"url":"https://gateway.pipeworx.io/bundlephobia/mcp"}}}

VS Code

{"servers":{"bundlephobia":{"type":"http","url":"https://gateway.pipeworx.io/bundlephobia/mcp"}}}

Antigravity

agy mcp add bundlephobia https://gateway.pipeworx.io/bundlephobia/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"bundlephobia","server_url":"https://gateway.pipeworx.io/bundlephobia/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"bundlephobia","server_url":"https://gateway.pipeworx.io/bundlephobia/mcp"}

history ~150 tokens
Fetch minified + gzipped bundle size for each of up to 5 specified versions of an npm package and return them side-by-side for size regression tracking.
recent_searches ~92 tokens
Return the list of npm packages most recently measured on bundlephobia.com, showing current community interest in bundle-size analysis.
similar ~112 tokens
Return npm packages with similar functionality to the given package, each with their minified + gzipped bundle sizes, to aid migration or replacement decisions.
size ~152 tokens
Bundle size analysis — minified + gzipped, tree-shakeability, dependencies, esm/cjs detection.

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