# Photon Engine Custom Authentication API

**Canonical:** https://apis.io/apis/photonengine/photonengine-custom-authentication-api/  
**Provider:** Photon Engine — https://apis.io/providers/photonengine/  
**Base URL:** wss://ns.exitgames.com:443  
**Documentation:** https://doc.photonengine.com/realtime/current/getting-started/realtime-intro

Photon Engine Custom Authentication API is one of 9 APIs that [Photon Engine](https://apis.io/providers/photonengine/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Custom Authentication. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Endpoint Photon's server calls to validate a connecting client's credentials. You implement this; Photon is the caller.

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/photonengine/refs/heads/main/openapi/photonengine-custom-authentication-api-openapi.yml
- **Documentation** — https://doc.photonengine.com/realtime/current/gameplay/web-extensions/webhooks
- **Documentation** — https://doc.photonengine.com/server/current/applications/loadbalancing/webhooks
- **Documentation** — https://doc.photonengine.com/realtime/current/connection-and-authentication/authentication/custom-authentication

## Other Photon Engine APIs (8)

- [Photon Realtime Transport Protocol](https://apis.io/apis/photonengine/photonengine-realtime-transport-api/)
- [Photon PUN (Photon Unity Networking) API](https://apis.io/apis/photonengine/photonengine-pun-api/)
- [Photon Fusion Networking API](https://apis.io/apis/photonengine/photonengine-fusion-api/)
- [Photon Quantum Deterministic Simulation API](https://apis.io/apis/photonengine/photonengine-quantum-api/)
- [Photon Voice API](https://apis.io/apis/photonengine/photonengine-voice-api/)
- [Photon Chat API](https://apis.io/apis/photonengine/photonengine-chat-api/)
- [Photon Bolt (Legacy, Deprecated)](https://apis.io/apis/photonengine/photonengine-bolt-api/)
- [Photon Engine Room Lifecycle WebHooks API](https://apis.io/apis/photonengine/photonengine-room-lifecycle-webhooks-api/)

## Tags

Custom Authentication

---

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