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Moz vs Semrush

Moz scores higher on the AgentReady, 49/100 against 46/100. They differ on 9 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Moz. Moz is an SEO and digital marketing solutions company providing tools for keyword research, competitive research, link research, rank tracking, and AI search visibility.

Semrush. The leading platform to grow and measure brand visibility across every digital channel.

Where Moz is ahead

Moz passes authentication documented and limits / constraints documented, and Semrush 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: no mandatory sales call, fast time to first request, copyable quickstart and official python sdk. Semrush misses those.

Where Semrush is ahead

Semrush passes search discoverable and llms.txt published, and Moz does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: agent-compatible signup flow. Moz misses it.

What neither does

Both fail public docs discoverable, llms-full.txt / full agent docs, structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, programmatic credential creation, cli available, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, 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 is whether an agent can find the product at all without being told it exists. Semrush leads 80 to 60. Moz misses search discoverable, public docs discoverable, llms.txt published, llms-full.txt / full agent docs; Semrush misses public docs discoverable, llms-full.txt / full agent docs.

Understand. Moz leads 38 to 23. Moz misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented; Semrush misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Moz leads 75 to 55. Moz misses agent-compatible signup flow, programmatic credential creation, cli available; Semrush misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, official python sdk, cli available.

Operate. Both sit at 24/100 here. Moz misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified; Semrush misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.

Pricing

Moz starts at $20 and has a free tier. Semrush does not publish one with no free tier.

Signal by signal

Which to pick

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

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