---
title: "NPM Package API Surface Extractor"
description: "Extracts and documents public API surfaces from NPM packages using TypeScript Compiler API (ts.createProgram) and API Extractor from @microsoft/api-extractor. Generates .api.md report files and .d.ts rollups."
verification: "security_reviewed"
source: "https://api-extractor.com/"
author: "Microsoft"
category:
  - "Library & API Reference"
framework:
  - "Claude Code"
---

# NPM Package API Surface Extractor

Extracts and documents public API surfaces from NPM packages using TypeScript Compiler API (ts.createProgram) and API Extractor from @microsoft/api-extractor. Generates .api.md report files and .d.ts rollups.

## Prerequisites

Node.js, TypeScript

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

Install command or upstream instructions:

```
npm install -D @microsoft/api-extractor
```

## Documentation

- https://api-extractor.com/

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/npm-package-api-surface-extractor/)