Epic Games

Epic Online Services (EOS)

Epic Online Services is Epic's free cross-platform backend for games. EOS exposes both a native C/C++ SDK (with Unity, Unreal, and platform wrappers) and a set of REST web services covering identity (Epic Account Services, Connect, Auth), social (Friends, Presence, Blocklist), play (Lobby, Sessions, P2P, Voice), progression (Achievements, Stats, Leaderboards), storage (Player Data Storage, Title Storage), integrity (Anti-Cheat, Sanctions, Reports), and commerce (Ecom). All EOS APIs are gated behind an Epic developer organization, sandbox, and client credentials issued in the EOS Developer Portal.

GitHub

Documentation

📖
Documentation
https://dev.epicgames.com/docs/epic-online-services
📖
GettingStarted
https://dev.epicgames.com/docs/epic-online-services/eos-get-started

SDKs

📦
SDK
https://dev.epicgames.com/docs/epic-online-services/platform-sdks

Other Resources

🔗
Portal
https://dev.epicgames.com
🔗
WebAPI
https://dev.epicgames.com/docs/web-api-ref
🔗
GraphQL
https://raw.githubusercontent.com/api-evangelist/epic-games/refs/heads/main/graphql/epic-games-graphql.md

API entry from apis.yml

apis.yml Raw ↑ 
aid: epic-games:epic-online-services
name: Epic Online Services (EOS)
description: Epic Online Services is Epic's free cross-platform backend for games. EOS exposes both a
  native C/C++ SDK (with Unity, Unreal, and platform wrappers) and a set of REST web services covering
  identity (Epic Account Services, Connect, Auth), social (Friends, Presence, Blocklist), play (Lobby,
  Sessions, P2P, Voice), progression (Achievements, Stats, Leaderboards), storage (Player Data Storage,
  Title Storage), integrity (Anti-Cheat, Sanctions, Reports), and commerce (Ecom). All EOS APIs are gated
  behind an Epic developer organization, sandbox, and client credentials issued in the EOS Developer Portal.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://dev.epicgames.com/en-US/services/epic-online-services
baseURL: https://api.epicgames.dev
tags:
- Achievements
- Anti-Cheat
- EOS
- Game Backend
- Identity
- Lobby
- Sessions
- Voice
properties:
- type: Portal
  url: https://dev.epicgames.com
- type: Documentation
  url: https://dev.epicgames.com/docs/epic-online-services
- type: GettingStarted
  url: https://dev.epicgames.com/docs/epic-online-services/eos-get-started
- type: SDK
  url: https://dev.epicgames.com/docs/epic-online-services/platform-sdks
- type: WebAPI
  url: https://dev.epicgames.com/docs/web-api-ref
- url: graphql/epic-games-graphql.md
  type: GraphQL