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Browserbase vs Steel

Steel scores higher on the AgentReady, 90/100 against 65/100. They differ on 8 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Browserbase. Browserbase is a platform that makes the web as reliable and programmable as APIs, giving AI agents access to cloud browsers, web search, page fetching, sandbox runtime, and major LLMs through a single API key.

Steel. Steel is an open source browser API that lets you control fleets of browsers in the cloud.

Where Browserbase is ahead

Browserbase passes authentication documented, and Steel does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

Where Steel is ahead

Steel passes openapi / spec quality, request examples provided, response examples provided and errors and status codes documented, and Browserbase does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

It also holds adopt: no mandatory sales call and programmatic credential creation. Browserbase misses those.

And on operate, machine-readable errors. Browserbase misses it.

What neither does

Both fail limits / constraints documented, retry behavior documented, idempotency support, rate-limit behavior predictable. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Steel leads 85 to 38. Browserbase misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Steel misses authentication documented, limits / constraints documented.

Adopt. Steel leads 100 to 55. Browserbase misses no mandatory sales call, programmatic credential creation; Steel misses nothing.

Operate. Steel leads 76 to 65. Browserbase misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Steel misses retry behavior documented, idempotency support, rate-limit behavior predictable.

Pricing

Browserbase starts at $0/mo and has a free tier. Steel does not publish one and has a free tier.

Signal by signal

Which to pick

Steel clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Browserbase and Steel. Alternatives to each: Browserbase, Steel.

An agent can fetch this as data: POST /v1/compare {"slugs": ["browserbase", "steel"]}