# Steel APIs
URL: /cookbook/topics/steel-apis

---
title: Steel APIs
description: "Recipes for Steel's first-party APIs: credentials, auth contexts, profiles, extensions, files."
---

<RecipeGrid>
<RecipeCard slug="convex-price-watch" title={"Watch Claude pricing for divergent A/B variants"} description={"Convex cron plus two parallel Steel proxy probes against claude.com/pricing. Stores per-tier per-region snapshots and surfaces tiers where the probes disagree."} topics={['Steel APIs', 'Convex']} date="2026-05-04" />
<RecipeCard slug="profiles" title={"Persist authenticated sessions with Profiles"} description={"Maintain authenticated sessions across Steel browser instances using profiles."} topics={['Steel APIs', 'Authentication']} date="2025-10-13" />
<RecipeCard slug="auth-context" title={"Reuse authenticated sessions across browsers"} description={"Maintain authenticated sessions across Steel browser instances by capturing and reusing cookies and local storage."} topics={['Steel APIs', 'Authentication']} date="2025-03-11" />
<RecipeCard slug="credentials" title={"Automate logins with the Credentials API"} description={"Use the Steel Credentials API with Playwright to automate flows with stored credentials."} topics={['Steel APIs', 'Authentication', 'Playwright']} date="2024-11-19" />
<RecipeCard slug="extensions" title={"Upload and run browser extensions"} description={"Use the Steel Extensions API with Playwright to upload and run browser extensions."} topics={['Steel APIs', 'Playwright']} date="2024-11-19" />
<RecipeCard slug="files" title={"Move files between your machine and a cloud browser"} description={"Use the Steel Files API with Playwright to automate file uploads and downloads in the cloud."} topics={['Steel APIs', 'Playwright']} date="2024-11-19" />
</RecipeGrid>