AI gateway vs direct provider API
A direct provider API is often the simplest starting point. A gateway layer like OSIR API becomes useful when teams need shared controls for accounts, quota, billing, usage records, and model operations.
| Decision area | Direct provider API | OSIR API gateway |
|---|---|---|
| Best stage | Prototype or single-team integration. | Shared production infrastructure across products or teams. |
| Account operations | Usually handled inside application code or manual provider settings. | Managed through account pools and operational controls. |
| Quota and billing | Often added later as custom product logic. | Kept close to gateway traffic, usage records, subscriptions, and balance controls. |
| Provider changes | May require product-side changes across multiple services. | Can be coordinated behind one gateway entry point. |
Practical rule
Start direct when the integration is simple. Add a gateway when AI access becomes shared infrastructure with operational, billing, quota, or multi-account requirements.