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PlanetScale vs Yugabyte

PlanetScale scores higher on the AgentReady, 64/100 against 48/100. They differ on 7 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

PlanetScale. PlanetScale provides the world's fastest and most scalable cloud databases, offering fully-managed Vitess and PostgreSQL clusters with exceptional speed, reliability, and horizontal scalability through sharding.

Yugabyte. Yugabyte is a company that provides YugabyteDB, an AI-ready, multi-modal, distributed PostgreSQL database for cloud-native apps.

Where PlanetScale is ahead

PlanetScale passes structured api reference and authentication documented, and Yugabyte 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, agent-compatible signup flow and copyable quickstart. Yugabyte misses those.

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

Where Yugabyte is ahead

Yugabyte passes free trial or free allowance, and PlanetScale does not. That is adopt, whether an agent can get a key and make its first successful call without a human in the loop.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, self-service signup, programmatic credential creation, fast time to first request, official python sdk, 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.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. PlanetScale leads 46 to 23. PlanetScale misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Yugabyte misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. PlanetScale leads 55 to 35. PlanetScale misses self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request, official python sdk; Yugabyte misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, official python sdk.

Operate. PlanetScale leads 56 to 35. PlanetScale misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Yugabyte misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

PlanetScale starts at $5/mo. Yugabyte starts at $125/vCPU/month and has a free tier.

Signal by signal

Which to pick

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

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