Steel
Open-source browser API and sandbox for AI agents to control web browsers at scale.
Updated
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Use cases
About Steel
Steel is listed in our browser/computer use category and is aimed at builders. Open-source browser API and sandbox for AI agents to control web browsers at scale. Pricing, as the maker states it: Open source + cloud. Maturity: Mature. We last checked the official link on 2026-10-16.
What is Steel?
Steel is an open-source browser API for AI agents and apps, so you can build web agents without building automation infrastructure from scratch.
It also has a hosted cloud.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: steel.dev.
Who is Steel for?
Developers running browser agents at scale.
Steel at a glance
- Open source: Yes (Apache License 2.0)
- GitHub: steel-dev/steel-browser · 7,851 stars (as of Oct 21, 2026)
Key features
- Browser API for agents
- Open source
- Hosted option
Steel pricing
- Launch: $0/month + usage · $30 of one-time credits, 10 concurrent sessions
- Scale: $250/month + usage · $100 of credits a month, 100 concurrent sessions
- Enterprise: Custom
Source: official pricing page, checked Oct 18, 2026. Prices change; check the source before buying.
Steel FAQ
What is Steel?
Steel is an open-source browser API for AI agents and apps, so you can build web agents without building automation infrastructure from scratch.
Who is Steel for?
Developers running browser agents at scale.
Is Steel free?
Yes. Steel has a free option (Launch), according to its pricing page (checked Oct 18, 2026).
How much does Steel cost?
As of Oct 18, 2026, Steel's official pricing page lists: Launch: $0/month + usage; Scale: $250/month + usage; Enterprise: Custom.
Is Steel open source?
Yes. Steel is released under the Apache License 2.0, according to its GitHub repository.
What are alternatives to Steel?
Similar tools include Browser Use, mobile-use, Nanobrowser, Sigma AI Browser, Page Agent and Libretto.
Steel ratings and reviews
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Steel alternatives
Other browser/computer use tools in our directory. See all browser/computer use tools →
Browser Use
Library that lets AI agents control a web browser.
mobile-use
Open-source AI agent that controls real Android and iOS apps from natural-language commands.
Nanobrowser
Open-source Chrome extension agent that automates web tasks in your own browser.
Sigma AI Browser
Free private web browser with a built-in AI agent, local AI and ad blocker.
Page Agent
JavaScript in-page agent that controls web interfaces from natural language instructions.
Libretto
An open-source CLI, debugging agents and browser tools for building and maintaining reliable web integrations, helping coding agents inspect real pages and write automations that keep working.
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