All requests to the elvah Market Data API require authentication using API keys. API keys identify your organization and track usage for billing and rate limiting purposes.
Include your API key in every request using the x-api-key header:
POST /api/v1/market-data HTTP/1.1
Host: market-data.elvah.de
Content-Type: application/json
x-api-key: your-api-key-here
Production Access: Contact our partnerships team to request API credentials:
Demo Access: Demo API keys will be available for evaluation purposes with limited data access (maximum 3 sites per request).
Demo responses will include additional headers to indicate limited access:
X-Demo-Account: true
X-Demo-Limit: 3
Note: Demo account system is currently in development.
To ensure system stability and fair usage, all API requests are subject to rate limiting.
Request Rate: 240 requests per minute per API key
Rate limit information is included in response headers:
HTTP/1.1 200 OK
X-RateLimit-Limit: 240
X-RateLimit-Remaining: 239
X-RateLimit-Reset: 1640995200