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Checkout.com vs Lago

Checkout.com scores higher on the AgentReady, 45/100 against 39/100. They differ on 10 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Checkout.com. Checkout.com is a payment processing company that provides high-performance payment solutions for businesses.

Lago. Lago is a billing platform that provides API access for pushing customer information and metrics (events) from applications to a billing system.

Where Checkout.com is ahead

Checkout.com passes clear canonical domain, public docs discoverable, llms.txt published and machine-readable metadata, and Lago does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: pricing understandable. Lago misses it.

And on adopt, free trial or free allowance. Lago misses it.

Finally, on operate, observable execution. Lago misses it.

Where Lago is ahead

Lago passes authentication documented, and Checkout.com 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. Checkout.com misses it.

And on operate, agent compatibility verified. Checkout.com misses it.

What neither does

Both fail clear product positioning, llms-full.txt / full agent docs, structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, self-service signup, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, cli available, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable. 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. Checkout.com leads 80 to 47. Checkout.com misses clear product positioning, llms-full.txt / full agent docs; Lago misses clear canonical domain, clear product positioning, public docs discoverable, llms.txt published, llms-full.txt / full agent docs, machine-readable metadata.

Understand. Both sit at 23/100 here. Checkout.com misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Lago misses structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Lago leads 45 to 40. Checkout.com misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, cli available; Lago misses self-service signup, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, cli available.

Operate. Lago leads 41 to 35. Checkout.com misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Lago misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution.

Pricing

Checkout.com does not publish a machine-readable starting price and has a free tier. Lago does not publish one.

Signal by signal

Which to pick

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

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