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Tavily vs Valyu

Tavily scores higher on the AgentReady, 86/100 against 62/100. They differ on 15 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Tavily. One secure API for real-time web access.

Valyu. Search and deep research API for AIs doing knowledge work.

Where Tavily is ahead

Tavily passes structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided and errors and status codes documented, and Valyu 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. Valyu misses it.

And on operate, machine-readable errors, rate-limit behavior predictable, observable execution and agent compatibility verified. Valyu misses those.

Where Valyu is ahead

Valyu passes search discoverable, and Tavily 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, fast time to first request and copyable quickstart. Tavily misses those.

What neither does

Both fail agent-compatible signup flow, retry behavior documented, 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.

Discover. Valyu leads 100 to 87. Tavily misses search discoverable; Valyu misses nothing.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Tavily leads 100 to 31. Tavily misses nothing; Valyu misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented.

Adopt. Valyu leads 80 to 70. Tavily misses no mandatory sales call, agent-compatible signup flow, fast time to first request, copyable quickstart; Valyu misses agent-compatible signup flow, programmatic credential creation.

Operate. Tavily leads 88 to 35. Tavily misses retry behavior documented, idempotency support; Valyu misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.

Pricing

Tavily starts at $0.008/credit and has a free tier. Valyu starts at $29/mo and has a free tier.

Signal by signal

Which to pick

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

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