EVE Swagger Interface (ESI)

The EVE Swagger Interface (ESI) is the official RESTful HTTP API for EVE Online third-party development. It covers roughly 180 endpoints across 30 resource families including Universe, Corporation, Character, Fleets, Market, Industry, Contracts, Mail, Assets, Wallet, Killmails, Sovereignty, Wars, Planetary Interaction, Faction Warfare, Dogma, and User Interface. Every request can carry an X-Compatibility-Date header (ISO YYYY-MM-DD) so that clients pin themselves to a known API behavior. Authentication is delegated to EVE SSO using fine-grained OAuth 2.0 scopes (one scope per route family, e.g. esi-wallet.read_character_wallet.v1). Public routes are anonymous; authenticated routes require a JWT access token whose scopes must cover the route. The API enforces a sliding-window per-bucket rate limit and an error rate limit, surfaces caching via Expires/Last-Modified/ETag, and pages large collections with X-Pages headers.