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Kong vs Unkey

Unkey scores higher on the AgentReady, 56/100 against 52/100. They differ on 14 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Kong. Kong is an API platform company providing API gateway and management solutions.

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 Kong is ahead

Kong passes llms-full.txt / full agent docs and mcp discoverable, 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 and mcp integration available. Unkey misses those.

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

Where Unkey is ahead

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

It also holds understand: pricing understandable and limits / constraints documented. Kong misses those.

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

Finally, on operate, observable execution. Kong misses it.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, 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. Both sit at 80/100 here. Kong misses clear canonical domain, clear product positioning; 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 38. Kong misses openapi / spec quality, 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 50. Kong misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart; Unkey misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, mcp integration available.

Operate. Kong leads 41 to 35. Kong misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution; Unkey misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

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

Kong plansUnkey plans
-Starter $5/mo
-Pro $25/mo
-Business Custom

Signal by signal

SignalKongUnkey
AgentReady5256
Discovery8080
Understanding3854
Adoption5055
Operability4135
Public APIYesYes
MCP serverYesNo
OpenAPI specYesYes
CLIYesYes
llms.txtYesYes
Self-serve signupUnknownYes
Free tierUnknownYes

Which to pick

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

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