Overview
The Eve Online ESI (EVE Swagger Interface) API provides access to game data for the space MMO EVE Online, including market data, character info, corporation details, and universe data. Public endpoints require no authentication, while player-specific data uses OAuth 2.0. It is well-documented and suited for players who want to build trading tools, corp management apps, or killboard trackers.
Beginner Tip
Start with public endpoints like /universe/types/ or /markets/prices/ which require no login. When you are ready for character-specific data, use the OAuth 2.0 flow documented at https://developers.eveonline.com/blog/article/sso-to-authenticated-calls.
Available Data
Example Response
{
"id": 1,
"name": "Eve Online",
"data": "Third-Party Developer Documentation",
"source": "Eve Online"
} Field Reference
type_id Unique identifier for an item type in the EVE universe. average_price The average market price of the item across all regions. adjusted_price CCP-calculated adjusted price used for industry cost indices. character_id Unique ID of an EVE Online character (used in character-scoped endpoints). name Name of the item, character, corporation, or universe object. Implementation Example
const url = "https://esi.evetech.net/ui";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"Authorization": "Bearer YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
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