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2captcha vs Crawlbase

Crawlbase scores higher on the AgentReady, 68/100 against 58/100. They differ on 6 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

2captcha. Captcha solving service that provides API-based captcha solving for developers and captcha entry work for workers.

Crawlbase. Crawlbase provides web crawling, scraping, and parsing APIs at scale.

Where 2captcha is ahead

2captcha passes structured, predictable output, and Crawlbase does not. That is operate, whether an agent can run against it in production and recover when a call fails.

Where Crawlbase is ahead

Crawlbase passes public docs discoverable, and 2captcha does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: limits / constraints documented. 2captcha misses it.

And on adopt, agent-compatible signup flow and cli available. 2captcha misses those.

Finally, on operate, agent compatibility verified. 2captcha misses it.

What neither does

Both fail structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, machine-readable errors, 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.

Discover. Crawlbase leads 100 to 87. 2captcha misses public docs discoverable; Crawlbase misses nothing.

Understand. Crawlbase leads 38 to 31. 2captcha misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Crawlbase misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Crawlbase leads 81 to 65. 2captcha misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, cli available; Crawlbase misses no mandatory sales call, programmatic credential creation.

Operate. Crawlbase leads 53 to 47. 2captcha misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Crawlbase misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable.

Pricing

2captcha starts at $0.5 per 1000 with no free tier. Crawlbase does not publish one and has a free tier.

2captcha plansCrawlbase plans
Image Captcha $0.5 — $1 per 1000-
reCAPTCHA v2 $1 — $2.99 per 1000-
reCAPTCHA v2 Callback $1 — $2.99 per 1000-
reCAPTCHA v2 Invisible $1 — $2.99 per 1000-
Cloudflare Turnstile $1.45 per 1000-
reCAPTCHA v3 (score <= 0.3) $1.45 per 1000-
reCAPTCHA v3 (score > 0.3)-
reCAPTCHA Enterprise $1 — $2.99 per 1000-
Arkose Labs captcha (FunCaptcha) $1.45 — $50 per 1000-
Amazon captcha $1.45 per 1000-
ALTCHA $2.99 per 1000-

Signal by signal

Signal2captchaCrawlbase
AgentReady5868
Discovery87100
Understanding3138
Adoption6581
Operability4753
Public APIYesYes
MCP serverYesYes
OpenAPI specUnknownUnknown
CLIUnknownYes
llms.txtYesYes
Self-serve signupYesYes
Free tierNoYes

Which to pick

Crawlbase clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: 2captcha and Crawlbase. Alternatives to each: 2captcha, Crawlbase.

An agent can fetch this as data: POST /v1/compare {"slugs": ["2captcha", "crawlbase"]}