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Apollo vs Close

Close scores higher on the AgentReady, 74/100 against 64/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Apollo. The AI sales platform for smarter, faster revenue growth.

Close. Close is a sales CRM built for teams that sell, combining calling, email, SMS, pipeline management, reporting, and an AI sales agent named Chloe into a single platform.

Where Apollo is ahead

Apollo passes clear product positioning, public docs discoverable and mcp discoverable, and Close 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. Close misses it.

And on adopt, official python sdk, cli available and mcp integration available. Close misses those.

Where Close is ahead

Close passes structured api reference, openapi / spec quality, request examples provided, response examples provided and errors and status codes documented, and Apollo 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 and programmatic credential creation. Apollo misses those.

And on operate, structured, predictable output, machine-readable errors and rate-limit behavior predictable. Apollo misses those.

What neither does

Both fail llms-full.txt / full agent docs, fast time to first request, copyable quickstart, 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. Apollo leads 93 to 53. Apollo misses llms-full.txt / full agent docs; Close misses clear product positioning, public docs discoverable, llms-full.txt / full agent docs, mcp discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Close leads 92 to 38. Apollo misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented; Close misses authentication documented.

Adopt. Apollo leads 70 to 60. Apollo misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart; Close misses fast time to first request, copyable quickstart, official python sdk, cli available, mcp integration available.

Operate. Close leads 89 to 56. Apollo misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Close misses retry behavior documented, idempotency support.

Pricing

Apollo does not publish a machine-readable starting price and has a free tier. Close does not publish one and has a free tier.

Signal by signal

Which to pick

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

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