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Sst vs Unkey

Unkey scores higher on the AgentReady, 56/100 against 44/100. They differ on 10 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Sst. SST is a framework that makes it easy to build modern full-stack applications on your own infrastructure.

Unkey. Unkey is a developer platform for modern APIs that unifies infrastructure, allowing developers to deploy APIs instantly, route traffic through global gateways, and understand usage in one place.

Where Sst is ahead

Sst passes llms-full.txt / full agent docs, and Unkey does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: agent-compatible signup flow. Unkey misses it.

Where Unkey is ahead

Unkey passes clear product positioning, and Sst does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: authentication documented, pricing understandable and limits / constraints documented. Sst misses those.

And on adopt, self-service signup, free trial or free allowance, fast time to first request and copyable quickstart. Sst misses those.

What neither does

Both fail mcp discoverable, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, mcp integration available, 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. Unkey leads 80 to 73. Sst misses clear product positioning, mcp discoverable; Unkey misses llms-full.txt / full agent docs, mcp discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Unkey leads 54 to 31. Sst misses openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Unkey misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented.

Adopt. Unkey leads 55 to 38. Sst misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, mcp integration available; Unkey misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, mcp integration available.

Operate. Both sit at 35/100 here. Sst misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Unkey misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Sst does not publish a machine-readable starting price. Unkey starts at $5/mo and has a free tier.

Signal by signal

Which to pick

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

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