Kong alternatives
The highest-scoring alternative to Kong is Zuplo at 70/100 on the AgentReady, against 52/100 for Kong.
All scored in API Management & Gateways.
| Score | Alternative | Compare |
|---|---|---|
| 70 | Zuplo | Kong vs Zuplo |
| 66 | ngrok | Kong vs ngrok |
| 64 | Redocly | Kong vs Redocly |
| 64 | Tyk | Kong vs Tyk |
| 56 | Unkey | Kong vs Unkey |
| 55 | Treblle | Kong vs Treblle |
| 52 | Bump | Kong vs Bump |
| 46 | Pylon | - |
What Zuplo does that Kong does not
Zuplo passes clear canonical domain, clear product positioning, pricing understandable, limits / constraints documented, self-service signup, free trial or free allowance, fast time to first request, copyable quickstart, structured, predictable output, observable execution, and Kong fails them. That is the whole of the gap between the two scores, so if none of those matter to your agent the ranking above overstates the difference.
Why people look for an alternative
Kong fails clear canonical domain, clear product positioning, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.
Where Kong loses the points
| Pillar | Kong | What it measures |
|---|---|---|
| Discover | 80 | Can an agent find it at all: sitemap, robots, structured data. |
| Understand | 38 | Is there a spec, an llms.txt, a machine-readable description. |
| Adopt | 50 | Signup, keys, SDKs, and whether a human has to be involved. |
| Operate | 41 | Rate-limit headers, errors, status, and behaviour under load. |
Kong is weakest on understand at 38/100. Without a spec an agent has to guess at endpoints, and it guesses wrong. If that is the part your agent depends on, take the ranking above seriously; if it is not, Kong may still be the right pick.
What an agent runs into with Kong
These are the findings from the last audit on 2026-08-22. Each one is a place unattended software stops, which is the practical reason to look at the list above.
- Make signup self-serve; an agent cannot sit through a sales call.
- Flesh out the OpenAPI: paths, schemas, and descriptions.
- Document error responses as an enum in your OpenAPI.
- Let agents create API keys programmatically.
- Return X-RateLimit / Retry-After headers so agents pace themselves.
- Return request IDs and expose status/usage so runs are observable.
- Add request examples to your API reference.
- Add response examples to your API reference.
What this category actually supports
Across the 9 products scored in API Management & Gateways, api gateway is offered by 100%.
An agent can get this list directly: resolve("alternative to Kong") over the MCP server, or GET /v1/categories/api-management.