`history`

Pack: bundlephobia · Endpoint: https://gateway.pipeworx.io/bundlephobia/mcp

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.

Parameters

Name	Type	Required	Description
`package`	string	yes
`versions`	string	yes	Comma-sep version list (max 5 to avoid timeouts)

Example call

Arguments

{
  "package": "lodash",
  "versions": "4.17.20,4.17.21"
}

curl

curl -X POST https://gateway.pipeworx.io/bundlephobia/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"history","arguments":{"package":"lodash","versions":"4.17.20,4.17.21"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('history', {
  "package": "lodash",
  "versions": "4.17.20,4.17.21"
});

More examples

{
  "package": "typescript",
  "versions": "4.9.0,5.0.0,5.1.0,5.2.0,5.3.0"
}

Response shape

Always returns: package, history

Field	Type	Description
`package`	string	Package name
`history`	array	Size data for each version

Full JSON Schema

{
  "type": "object",
  "description": "Bundle size history across multiple versions",
  "properties": {
    "package": {
      "type": "string",
      "description": "Package name"
    },
    "history": {
      "type": "array",
      "description": "Size data for each version",
      "items": {
        "type": "object",
        "properties": {
          "version": {
            "type": "string",
            "description": "Version number"
          },
          "size": {
            "type": "object",
            "description": "Bundle size data (if successful)"
          },
          "error": {
            "type": "string",
            "description": "Error message if fetch failed"
          }
        },
        "required": [
          "version"
        ]
      }
    }
  },
  "required": [
    "package",
    "history"
  ]
}

Connect

Add this to your MCP client config, or use one-click install buttons:

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

See Getting Started for client-specific install steps.

history