Per-partner API controls: the feature your gateway probably doesn't have
B2B APIs need different catalogs, limits, and visibility per partner—not one global throttle. Here is why per-partner access matters and how to evaluate gateways against it.
- enterprise
- api-management
- developer-experience
- security
Many gateways are great at HTTP and lousy at B2B reality. Enterprises do not have “the API” in the singular—they have tiers of partners, different contracts, sandboxes next to production, and teams who must never see each other’s bundles. A single global rate limit and one catalog for everyone is not neutrality—it is a product gap.
Per-partner controls mean: each partner sees only the API products they are allowed to use, with credentials and limits that match their deal—and your observability breaks down by partner without forking your entire stack.
Why “one size fits all” fails in the field
- Contractual throughput differs — Enterprise A bought high throughput; startup B did not.
- Catalog differs — Partner C gets payments only; Partner D also gets risk feeds.
- Environment differs — Sandbox keys must not accidentally hit production paths with the same ease as live traffic.
- Support differs — When something breaks, you need to answer what this partner called in this window without a custom data warehouse project.
If your gateway only thinks in IPs or anonymous API keys without a first-class partner object, you will duct-tape tenancy in application code again.
What to look for in evaluation
| Capability | Why it matters |
|---|---|
| Partner-scoped catalog | Portal and discovery show only approved products |
| Profile (e.g. sandbox / prod) | Same identity journey, different risk and data |
| Per-partner or per-client limits | Fairness without global throttling—see Rate limits that protect upstreams without punishing partners |
| Metrics and logs by partner | SLOs, billing disputes, security investigations |
Zerq’s Developer Portal explicitly includes per-partner access: partners only see the API products they are allowed to use, with self-service discovery, try-it, and profiles such as sandbox versus production. Observability filters by product and partner—see Capabilities (Developer Portal and Observability & Metrics) and Observability.
Gateway vs portal: both have to agree
Per-partner is not only a UI concern. If the portal hides an endpoint but the gateway still routes it, you have security theater. The published surface and enforced surface must match—the same theme as API inventory is the first step to governance.
Takeaway for enterprise buyers
Ask vendors to demo two different partner logins against the same API estate and show different catalogs, limits, and log facets—not just a different API key string with the same everything else.
Summary: Per-partner controls are a B2B requirement, not a nice-to-have. Demand catalog scoping, profile semantics, limits, and observability aligned to how you actually sell and support APIs.
Request an enterprise demo to walk partner onboarding, portal visibility, and gateway enforcement together.