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Steel browser API

Open-source cloud browser API for AI agents. API key from Settings > API Keys (shown once).

Researched · not yet run liveLast researched 25 October 2026 · Steel · provider site

Researched, not yet run live. Built from the provider’s official pages (linked below). A person hasn’t walked this flow end to end yet, so check each step against the source.
Do this with verapliJSON for agents

Steps

Steps marked “human step” are ones only you can do: verapli never signs in, submits, pays or accepts terms for you.

  1. Sign in or create a Steel account

    Sign in to Steel. If you have no account yet, you create it yourself; verapli does not create accounts.

    • Guided by hand
    • Human step: You sign in

    Where: https://app.steel.dev/

  2. Create an API key

    In Settings > API Keys create a key and copy it now (shown only once); set STEEL_API_KEY. Or run stripe projects add steel/browser.

    • Guided by hand
    • Human step: You press submit
    • After: Sign in or create a Steel account

    verapli captures STEEL_API_KEY here by plain code: encrypted in your browser, never shown to AI.

What you end up with

Env varSecretFormatWhat it is
STEEL_API_KEYsecretSteel API key

For agents

The same entry as JSON: /api/v1/entries/steel/browser · requirements /api/v1/requirements/steel/browser · terms /api/v1/terms/steel/browser.

Remote MCP (read-only, no auth)
claude mcp add --transport http verapli https://verapli.com/mcp

> "What do I need for Steel browser API, and how long will it take?"
  → tools/call requirements { "provider_id": "steel/browser" }

Sources

  1. Stripe Projects CLI (Available providers) Steel is listed as a Stripe Projects provider (Browser) · accessed 25 October 2026 · official
  2. projects.dev provider catalogue Catalogue service id steel/browser · accessed 25 October 2026 · official
  3. Steel docs - Authentication Keys from app.steel.dev Settings > API Keys; full key shown only once; SDKs read STEEL_API_KEY from the environment; use .env and gitignore it · accessed 25 October 2026 · official
  4. Steel docs - Sessions API quickstart steel-sdk package; process.env.STEEL_API_KEY · accessed 25 October 2026 · official

Provider rules change. This page is generated from verapli registry version 2026.1025.387; spotted something out of date? Tell us. Steel is not affiliated with verapli.