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Browserbase vs Kernel

Kernel scores higher on the AgentReady, 89/100 against 65/100. They differ on 13 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.

Kernel. Kernel provides crazy fast, open source browser infrastructure for AI agents to access the internet.

Where Browserbase is ahead

Browserbase passes authentication documented, and Kernel 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: agent-compatible signup flow, fast time to first request and copyable quickstart. Kernel misses those.

Where Kernel is ahead

Kernel passes openapi / spec quality, request examples provided, response examples provided, errors and status codes documented and limits / constraints 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: programmatic credential creation. Browserbase misses it.

And on operate, machine-readable errors, retry behavior documented and rate-limit behavior predictable. Browserbase misses those.

What neither does

Both fail no mandatory sales call, idempotency support. 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. Kernel leads 92 to 38. Browserbase misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Kernel misses authentication documented.

Adopt. Kernel leads 71 to 55. Browserbase misses no mandatory sales call, programmatic credential creation; Kernel misses no mandatory sales call, agent-compatible signup flow, fast time to first request, copyable quickstart.

Operate. Kernel leads 94 to 65. Browserbase misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Kernel misses idempotency support.

Pricing

Browserbase starts at $0/mo and has a free tier. Kernel starts at $0/mo and has a free tier.

Signal by signal

Which to pick

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

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