Emissary-ingress vs Google Cloud API Gateway
| Emissary-ingress | Google Cloud API Gateway | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | $1.50/mo |
| Open source | No | No |
| Platforms | Linux, self-hosted | api, Web |
| Free plan | Yes | Yes |
| Deployment model | self-hosted | cloud |
| Supported protocols | HTTP, HTTPS, HTTPPROXY, HTTPSPROXY, TCP, TLS, gRPC, HTTP/3 | HTTP/REST, HTTP/JSON, gRPC |
| Authentication methods | Basic authentication, external HTTP or gRPC authentication service, client certificate validation, mutual TLS | API keys, service accounts/JWT, Google authentication, Google ID tokens |
| Rate limiting | Yes | Yes |
| Request transformation | Yes | Yes |
| Monthly request limit | — | 1,000,000,000 requests/mo |
Both are listed in Best API Gateway Software. On Everything Xiaomi, Emissary-ingress scores higher on our published basis.