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Adyen vs Stripe

Stripe scores higher on the AgentReady, 64/100 against 55/100. They differ on 6 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Adyen. One platform for payments, data, and financial products.

Stripe. Financial infrastructure to grow your revenue.

Where Adyen is ahead

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

Where Stripe is ahead

Stripe passes authentication documented, and Adyen 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: self-service signup, fast time to first request, copyable quickstart and cli available. Adyen misses those.

What neither does

Both fail structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, no mandatory sales call, programmatic credential creation, 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. Adyen leads 100 to 93. Adyen misses nothing; Stripe misses llms-full.txt / full agent docs.

Understand. Stripe leads 31 to 23. Adyen misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Stripe misses structured api reference, openapi / spec quality, 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. Stripe leads 81 to 50. Adyen misses self-service signup, no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, cli available; Stripe misses no mandatory sales call, programmatic credential creation.

Operate. Stripe leads 50 to 47. Adyen misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Stripe misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Adyen starts at $0.13 with no free tier. Stripe does not publish one with no free tier.

Signal by signal

Which to pick

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

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