Get started

Connect to the eventii Open API with an API key.

The eventii Open API provides programmatic access to the eventii ticketing platform. It covers customers, events, tickets, season cards, partners, webhooks, and related resources.

API base URL

Send requests to:

https://openapi.eventii.dk/v1

Make a request

Every request needs an API key in the X-API-KEY header.

X-API-KEY: your-api-key-here

The API reference lists the available operations, their parameters, and response examples.

Rate limiting

Most endpoints limit an API key to 100 requests per 60 seconds. Check each operation for its own limit: starting a historical sync allows 10 requests per 60 seconds, while retrieving a sync run allows 60 requests per 60 seconds. Requests beyond a limit receive 429 Too Many Requests.

Response format

Most successful responses use a standard envelope:

{
  "statusCode": 200,
  "isSuccess": true,
  "result": {}
}

Paginated responses include page, pageSize, resultSize, and data. Historical synchronization operations return their run status object directly. Many error responses include statusCode, isSuccess, errorMessage, and errors; consult the operation for its documented status responses.