Ambassador Edge Stack vs Envoy Gateway
| Ambassador Edge Stack | Envoy Gateway | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | — | api, self-hosted |
| Deployment model | self-hosted | self-hosted |
| Supported protocols | HTTP, HTTPS, gRPC, gRPC-Web, HTTP/3 | HTTP, HTTPS, gRPC, TLS, TCP, UDP |
| Rate limiting | Yes | Yes |
| Free plan | — | Yes |
| Authentication methods | — | mTLS, JWT, API key, Basic Auth, OIDC, external authorization |
| Request transformation | — | Yes |
Both are listed in Best API Gateway Software. On Samsung Mobile US Press, Envoy Gateway scores higher on our published basis.