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2captcha vs Decodo

2captcha scores higher on the AgentReady, 58/100 against 53/100. They differ on 5 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.

Decodo. AI-Ready Proxy & Scraping Solutions.

Where 2captcha is ahead

2captcha passes llms-full.txt / full agent docs, and Decodo does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: authentication documented. Decodo misses it.

And on adopt, fast time to first request and copyable quickstart. Decodo misses those.

Where Decodo is ahead

Decodo passes cli available, and 2captcha does not. That is adopt, whether an agent can get a key and make its first successful call without a human in the loop.

What neither does

Both fail public docs discoverable, structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. 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. 2captcha leads 87 to 80. 2captcha misses public docs discoverable; Decodo misses public docs discoverable, llms-full.txt / full agent docs.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. 2captcha leads 31 to 23. 2captcha misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Decodo misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. 2captcha leads 65 to 60. 2captcha misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, cli available; Decodo misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart.

Operate. Both sit at 47/100 here. 2captcha misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Decodo misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

2captcha starts at $0.5 per 1000 with no free tier. Decodo starts at $2/GB with no free tier.

Signal by signal

Which to pick

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

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