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Vespa vs Xata

Xata scores higher on the AgentReady, 70/100 against 56/100. 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

Vespa. Vespa.ai develops the Vespa AI Search Platform, a distributed serving engine that unifies retrieval, ranking, machine learning inference, and real-time serving for business-critical AI applications.

Xata. A Postgres platform with instant branching and scale-to-zero compute.

Where Vespa is ahead

Vespa passes limits / constraints documented, and Xata does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

Where Xata is ahead

Xata passes mcp discoverable, and Vespa 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, agent-compatible signup flow and mcp integration available. Vespa misses those.

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

What neither does

Both fail openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes 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. Xata leads 100 to 87. Vespa misses mcp discoverable; Xata misses nothing.

Understand. Vespa leads 46 to 38. Vespa misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented; Xata misses openapi / spec quality, authentication documented, 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. Xata leads 90 to 55. Vespa misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, mcp integration available; Xata misses programmatic credential creation.

Operate. Xata leads 53 to 35. Vespa misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Xata misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable.

Pricing

Vespa starts at $0.05/hour with no free tier. Xata starts at $0.012/hr and has a free tier.

Signal by signal

Which to pick

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

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