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Neon vs Powersync

Neon scores higher on the AgentReady, 90/100 against 50/100. They differ on 12 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Neon. The backend for apps and agents, built to scale on Lakebase Postgres.

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.

Where Neon is ahead

Neon 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 understand: structured api reference and authentication documented. Powersync misses those.

And on adopt, mcp integration available. Powersync misses it.

Finally, on operate, agent compatibility verified. Powersync misses it.

Where Powersync is ahead

Powersync passes search discoverable and public docs discoverable, and Neon 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, free trial or free allowance and official typescript sdk. Neon misses those.

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

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, programmatic credential creation, fast time to first request, copyable quickstart, 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.

Discover. Neon leads 100 to 87. Neon misses search discoverable, public docs discoverable; Powersync misses mcp discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Neon leads 83 to 23. Neon misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Powersync misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Neon leads 100 to 55. Neon misses no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, official typescript sdk, official python sdk; Powersync misses programmatic credential creation, fast time to first request, copyable quickstart, official python sdk, mcp integration available.

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

Pricing

Neon does not publish a machine-readable starting price. Powersync starts at $0/month and has a free tier.

Signal by signal

Which to pick

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

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