Steel by Steel
Browser API for AI agents with sessions, stealth, CAPTCHA solving and an open-source self-host option.
Browser automation (cloud) Official MCP server Open source
Price
Free plan
paid plans from $250/mo
Free tier
Yes
Launch plan $0/month with $30 of credits (one time), 10...
SDK downloads
104K
npm steel-sdk · PyPI steel-sdk
Pricing
| Free tier | Launch plan $0/month with $30 of credits (one time), 10 concurrent sessions |
|---|---|
| Cheapest paid plan | $250 a month |
| Usage price | Browser hours $0.10 (Launch) / $0.08 (Scale); proxy $10/GB (Launch) / $6/GB; CAPTCHA $3 per 1k / $1 per 1k |
| Good to know | Launch is pay-as-you-go with no monthly fee; Scale $250/month includes $100 credits monthly. Sessions max 15 min on Launch, 1 hour on Scale. Official MCP server is the GitHub repo steel-dev/steel-mcp-server (run via npx github:steel-dev/steel-mcp-server; not on npm). |
From the official pricing page, checked Oct 9, 2026. Prices change: confirm before you buy.
Use it from an agent
| MCP server | Official |
|---|---|
| npm | npm install steel-sdk |
| PyPI | pip install steel-sdk |
| GitHub | steel-dev/steel-browser · 7,759 stars · last push Oct 6, 2026 |
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