# Contour ExtensionService API

**Canonical:** https://apis.io/apis/contour/contour-extensionservice-api/  
**Provider:** Contour — https://apis.io/providers/contour/  
**Base URL:** https://projectcontour.io  
**Documentation:** https://projectcontour.io/docs/main/config/api/

Contour ExtensionService API is one of 9 APIs that [Contour](https://apis.io/providers/contour/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Authorization, Custom Resource, Extension Service, gRPC, and Kubernetes. The published artifact set on APIs.io includes API documentation and an API reference.

Kubernetes Custom Resource Definition for binding gRPC-based extension services to the Contour API. ExtensionService resources allow external components to implement Contour API features such as external authorization and rate limiting by registering a network service that Contour will route to via Envoy's gRPC extension protocol (v3).

## Machine-readable artifacts (2)

- **Documentation** — https://projectcontour.io/docs/main/config/api/
- **Reference** — https://projectcontour.io/docs/main/config/api-reference.html

## Other Contour APIs (8)

- [Contour Kubernetes Ingress API](https://apis.io/apis/contour/contour-kubernetes-ingress-api/)
- [Contour Configuration API](https://apis.io/apis/contour/contour-configuration-api/)
- [Contour Gateway API](https://apis.io/apis/contour/contour-gateway-api/)
- [Contour GatewayClass API](https://apis.io/apis/contour/contour-gatewayclass-api/)
- [Contour HTTPProxy API](https://apis.io/apis/contour/contour-httpproxy-api/)
- [Contour HTTPRoute API](https://apis.io/apis/contour/contour-httproute-api/)
- [Contour TLSCertificateDelegation API](https://apis.io/apis/contour/contour-tlscertificatedelegation-api/)
- [Contour TLSRoute API](https://apis.io/apis/contour/contour-tlsroute-api/)

## Tags

Authorization, Custom Resource, Extension Service, gRPC, Kubernetes

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/contour/contour-extensionservice-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/contour/.