Compare

Clay vs Diffbot

Diffbot scores higher on the AgentReady, 59/100 against 47/100. They differ on 16 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Clay. Clay is a go-to-market data platform that provides data infrastructure, AI agents, orchestration, and execution tools for sales and marketing teams.

Diffbot. Diffbot builds AI models that read and transform the unstructured web into knowledge.

Where Clay is ahead

Clay passes clear canonical domain, and Diffbot does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: no mandatory sales call, agent-compatible signup flow, copyable quickstart and cli available. Diffbot misses those.

And on operate, observable execution. Diffbot misses it.

Where Diffbot is ahead

Diffbot passes clear product positioning, llms.txt published and llms-full.txt / full agent docs, and Clay does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: structured api reference, authentication documented, pricing understandable and limits / constraints documented. Clay misses those.

And on adopt, self-service signup and free trial or free allowance. Clay misses those.

Finally, on operate, structured, predictable output. Clay misses it.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, programmatic credential creation, fast time to first request, 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. Diffbot leads 93 to 73. Clay misses clear product positioning, llms.txt published, llms-full.txt / full agent docs; Diffbot misses clear canonical domain.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Diffbot leads 54 to 15. Clay misses structured api reference, openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Diffbot misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented.

Adopt. Clay leads 65 to 55. Clay misses self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request; Diffbot misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, cli available.

Operate. Both sit at 35/100 here. Clay misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Diffbot misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.

Pricing

Clay does not publish a machine-readable starting price. Diffbot starts at $0/mo and has a free tier.

Signal by signal

Which to pick

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

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