Steel

Open-source browser API for agents

🖱️ Browser agents open source / open weights

/ 100

Open-source headless browser sandbox with session management for AI agents; also hosted.

You want an open-source alternative to hosted browser infra.

You want the largest ecosystem.

Score breakdown

Job fit13/30

Ease / time-to-first-result11/15

Value13/15

Momentum9/15

Openness & portability10/10

Trust & maturity6/10

Builder/gamer bonus4/5

Initial editorial estimate from public info; not yet hands-on tested. How we score →

Pricing: Launch $0 + usage with $30 free credits; Scale $250/mo
✓ Verified on the official pricing page, Oct 18, 2026
Free tier: Yes
Starting paid price: $250/mo + usage
Platforms: API
Open source: Yes
Official URL: https://steel.dev
URL verified: Oct 18, 2026 (curl HTTP GET)
Last reviewed: Oct 18, 2026 by agent
Sources: https://steel.dev
https://steel.dev/pricing