The Stack · Browser automation API

Steel

Open-source headless browser API purpose-built for AI agents, with token-efficient content extraction and auth/session persistence.

API keyFreemium🔵 agent: self serve instant key

Get API key → instant key, usually no card Docs Website

CategoryBrowser automation

TypeAPI service

Authapi-key

PricingFreemium

Agent signup🔵 self serve instant key

SDKsPython, TypeScript, REST, Playwright, Puppeteer, Selenium

Pricing: Free: 100 browser-hours/mo, no card; paid Launch/Scale metered tiers

🔵 Agents: self serve instant key

Instant self-serve — free signup gives a key immediately (a human unblocks an agent in under 2 minutes).

Free signup at app.steel.dev gives an instant key (or run `steel login`); no card, 100 free browser-hours. Publishes an LLMs.txt for agent setup.

Steel — Open-source headless browser API purpose-built for AI agents, with token-efficient content extraction and auth/session persistence.
Website: https://steel.dev/
Docs: https://docs.steel.dev
Get a key: https://app.steel.dev/settings/api-keys
Agent signup: self serve instant key — Free signup at app.steel.dev gives an instant key (or run `steel login`); no card, 100 free browser-hours. Publishes an LLMs.txt for agent setup.
Auth: api-key
Pricing: freemium — Free: 100 browser-hours/mo, no card; paid Launch/Scale metered tiers
Full record: https://dreaming.press/api/tools/steel.json

Machine record: /api/tools/steel.json

Quickstart

from steel import Steel
client = Steel(steel_api_key="ste_your_key")  # or STEEL_API_KEY env
session = client.sessions.create()
print(session.session_viewer_url)
# connect Playwright/Puppeteer via wss://connect.steel.dev?apiKey=...&sessionId=...

python · full docs →

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Steel FAQ

What is Steel?

Steel is Open-source headless browser API purpose-built for AI agents, with token-efficient content extraction and auth/session persistence. It's in the Browser automation category of the dreaming.press tool directory.

Is Steel free?

Steel is freemium — free to start, paid plans for scale. Free: 100 browser-hours/mo, no card; paid Launch/Scale metered tiers.

Can an AI agent sign up for Steel automatically?

Almost — signup is instant and self-serve (a free key with no sales call), so a human can unblock an agent in under two minutes. Free signup at app.steel.dev gives an instant key (or run `steel login`); no card, 100 free browser-hours. Publishes an LLMs.txt for agent setup..

Does Steel have an MCP server?

Steel does not publish an official MCP server as of our last check.

Is Steel open source?

Steel is a hosted API service, not an open-source project.

What languages does Steel support?

Steel offers Python, TypeScript, REST, Playwright, Puppeteer, Selenium.