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Koyeb vs Railway

Railway scores higher on the AgentReady, 87/100 against 57/100. They differ on 14 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Koyeb. Developer-friendly serverless platform designed to let businesses and developers easily deploy reliable and scalable applications globally, with high-performance infrastructure for AI inference, sandboxes, and microservices on CPUs, GPUs, and accelerators

Railway. Railway is an all-in-one intelligent cloud provider that makes it easy to provision infrastructure, develop locally, and deploy to the cloud.

Where Koyeb is ahead

Koyeb passes search discoverable and public docs discoverable, and Railway 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, copyable quickstart, official typescript sdk and official python sdk. Railway misses those.

And on operate, canonical workflow succeeds and observable execution. Railway misses those.

Where Railway is ahead

Railway passes clear canonical domain, llms.txt published and llms-full.txt / full agent docs, and Koyeb 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. Koyeb misses it.

And on operate, agent compatibility verified. Koyeb misses it.

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, programmatic credential creation, 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. Railway leads 83 to 80. Koyeb misses clear canonical domain, llms.txt published, llms-full.txt / full agent docs; Railway misses search discoverable, public docs discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Railway leads 100 to 23. Koyeb misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Railway misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Koyeb leads 90 to 88. Koyeb misses programmatic credential creation; Railway misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, official typescript sdk, official python sdk.

Operate. Railway leads 78 to 35. Koyeb misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Railway misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution.

Pricing

Koyeb does not publish a machine-readable starting price and has a free tier. Railway does not publish one and has a free tier.

Signal by signal

Which to pick

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

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