# Browser to API

> Trace to OpenAPI 3.1 from XHR

**Subcategory:** Browserbase  
**License:** MIT (frontmatter; no LICENSE file)  
**Source:** https://github.com/browserbase/skills/blob/main/skills/browser-to-api/SKILL.md

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## When it is useful

Turn a website's observable HTTP traffic into a best-effort OpenAPI 3.1 spec by analyzing a `browser-trace` capture. Use when the user wants to discover/extract API endpoints from a browser session, build an OpenAPI doc from network traffic, or document a third-party site's XHR/fetch surface for client integration.

## The Catch

trace → OpenAPI 3.1 from XHR. Needs browser-trace first; not an exploit skill.