Ambassador Edge Stack vs Zuul
| Ambassador Edge Stack | Zuul | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | Linux |
| Deployment model | self-hosted | self-hosted |
| Supported protocols | HTTP, HTTPS, gRPC, gRPC-Web, HTTP/3 | HTTP, HTTP/2, WebSocket, Server-Sent Events (SSE) |
| Rate limiting | Yes | Yes |
| Authentication methods | — | Filter-based authentication, mutual TLS, custom authentication handlers |
| Request transformation | — | Yes |
Both are listed in Best API Gateway Software. On Samsung Mobile US Press, Ambassador Edge Stack scores higher on our published basis.