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Fauna vs Singlestore

Singlestore scores higher on the AgentReady, 57/100 against 20/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Fauna. Fauna is a distributed serverless database that combines document flexibility with relational power, automatic scaling, and zero operational overhead.

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

Where Fauna is ahead

Fauna 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: free trial or free allowance. Singlestore misses it.

Where Singlestore is ahead

Singlestore passes clear canonical domain, clear product positioning, public docs discoverable, llms.txt published, llms-full.txt / full agent docs, mcp discoverable and machine-readable metadata, and Fauna does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: self-service signup, agent-compatible signup flow, fast time to first request, copyable quickstart, cli available and mcp integration available. Fauna misses those.

And on operate, canonical workflow succeeds and observable execution. Fauna 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, no mandatory sales call, 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 is whether an agent can find the product at all without being told it exists. Singlestore leads 100 to 33. Fauna misses clear canonical domain, clear product positioning, public docs discoverable, llms.txt published, llms-full.txt / full agent docs, mcp discoverable, machine-readable metadata; Singlestore misses nothing.

Understand. Fauna leads 23 to 15. Fauna 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. Singlestore leads 75 to 25. Fauna misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, cli available, mcp integration available; Singlestore misses no mandatory sales call, programmatic credential creation, free trial or free allowance.

Operate. Singlestore leads 39 to 0. Fauna misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified; Singlestore misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Fauna starts at $150/mo with no 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: Fauna and Singlestore. Alternatives to each: Fauna, Singlestore.

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