Unkey vs Zuplo
Zuplo scores higher on the AgentReady, 70/100 against 56/100. They differ on 8 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.
What each one is
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.
Zuplo. Zuplo is the unified gateway for APIs and AI — one programmable policy engine for the models your apps call and the agents that call you.
Where Unkey is ahead
Unkey passes search discoverable, and Zuplo does not. That is discover, whether an agent can find the product at all without being told it exists.
It also holds adopt: official python sdk. Zuplo misses it.
Where Zuplo is ahead
Zuplo 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, structured, predictable output and agent compatibility verified. Unkey misses those.
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, 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. Zuplo leads 87 to 80. Unkey misses llms-full.txt / full agent docs, mcp discoverable; Zuplo misses search discoverable.
Understand. Both sit at 54/100 here. Unkey misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented; Zuplo misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented.
Adopt. Zuplo leads 71 to 55. Unkey misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, mcp integration available; Zuplo misses no mandatory sales call, programmatic credential creation, official python sdk.
Operate is whether an agent can run against it in production and recover when a call fails. Zuplo leads 67 to 35. Unkey misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Zuplo misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable.
Pricing
Unkey starts at $5/mo and has a free tier. Zuplo does not publish one and has a free tier.
| Unkey plans | Zuplo plans |
|---|---|
| Starter $5/mo | Free Free |
| Pro $25/mo | Builder |
| Business Custom | Enterprise Custom |
Signal by signal
| Signal | Unkey | Zuplo |
|---|---|---|
| AgentReady | 56 | 70 |
| Discovery | 80 | 87 |
| Understanding | 54 | 54 |
| Adoption | 55 | 71 |
| Operability | 35 | 67 |
| Public API | Yes | Yes |
| MCP server | No | Yes |
| OpenAPI spec | Yes | Yes |
| CLI | Yes | Yes |
| llms.txt | Yes | Yes |
| Self-serve signup | Yes | Yes |
| Free tier | Yes | Yes |
Which to pick
Zuplo clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Unkey and Zuplo. Alternatives to each: Unkey, Zuplo.
An agent can fetch this as data: POST /v1/compare {"slugs": ["unkey", "zuplo"]}