Steel

Steel is browser infrastructure built for AI agents and automated web tasks. It provides an API for spinning up cloud-hosted browser sessions on demand, so developers don't have to run and maintain their own headless browser fleet. Sessions start in under a second when the client is in the same region, can run for up to 24 hours, and support saving and reusing cookies and local storage across runs so an agent doesn't need to log in every time. The platform includes automatic CAPTCHA solving and anti-detection measures like proxy rotation and browser fingerprinting, aimed at sites that block typical automation traffic. A live session viewer lets developers watch and debug what an agent is doing in real time. Steel works with common automation frameworks — Puppeteer, Playwright, and Selenium — through Python and Node.js SDKs, and integrates with agent frameworks including Browser Use, Magnitude, Notte, OpenAI Computer Use, and Claude Computer Use. It's built by Nen Labs Inc. and is aimed at teams building AI shopping assistants, scrapers, RPA tools, QA testers, and customer service agents that need to interact with real websites. Pricing starts free with one-time credits, scaling to a paid monthly plan with more credits and support, and a custom enterprise tier for high session volumes.