API Security Policies
Our APIs are protected by several security policies to ensure controlled and secure access.
Daily Quota
Default quota: 50,000 API calls per day (rolling 24-hour window). A quota increase can be requested via api-support@vanmarcke.com.
Quota usage is calculated based on the access token type:
Client Credentials: Counted per API key.
Authorization Code / Password: Counted per API key and customer ID.
Rate Limit
API calls are limited to 1 request every 20 milliseconds.
Authentication
An OAuth access token must be sent in the
Authorization
header as a Bearer token:Authorization: Bearer {access_token}
For details on obtaining a valid OAuth access token, refer to Authentication - OAuth 2.0 .
API Key
Clients must always send an API key in the HTTP header with name ‘x-api-key’:
x-api-key: {your_api_key}
The API key identifies the client application and can be found in the registered application details in the Developer Portal - My Workspace.
Important Security Note:
Do not share your API key.
Be cautious when sharing Postman collections that contain your API key.