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Powersync vs Singlestore

Singlestore scores higher on the AgentReady, 57/100 against 50/100. They differ on 8 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Powersync. PowerSync is a sync engine that consists of two components: a service that enables high-scalability partial data syncing and a set of client SDKs that manage client-side persistence, consistency, reactivity and syncing write operations back.

Singlestore. SingleStore is a distributed SQL database built to power intelligent applications.

Where Powersync is ahead

Powersync passes pricing understandable, and Singlestore 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 and free trial or free allowance. Singlestore misses those.

Where Singlestore is ahead

Singlestore passes mcp discoverable, and Powersync does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: fast time to first request, copyable quickstart, official python sdk and mcp integration available. Powersync misses those.

What neither does

Both fail structured api reference, openapi / spec quality, authentication documented, 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, 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. Singlestore leads 100 to 87. Powersync misses mcp discoverable; Singlestore misses nothing.

Understand. Powersync leads 23 to 15. Powersync misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Singlestore misses structured api reference, openapi / spec quality, authentication documented, pricing understandable, 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. Singlestore leads 75 to 55. Powersync misses programmatic credential creation, fast time to first request, copyable quickstart, official python sdk, mcp integration available; Singlestore misses no mandatory sales call, programmatic credential creation, free trial or free allowance.

Operate. Singlestore leads 39 to 35. Powersync misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Singlestore misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Powersync starts at $0/month and has a free tier. Singlestore does not publish one.

Signal by signal

Which to pick

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

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