Entso E Rate Limits

The ENTSO-E Transparency Platform publishes explicit, numeric limits in its RESTful API user guide. Request rate is capped at 400 requests per minute, counted per IP address AND per security token; crossing the cap earns a temporary 10-minute ban, during which requests receive HTTP 429 with the message "Max allowed requests per minute from each unique IP is max up to 400 only". Independent of rate, each query is bounded in size - standard (table) data items such as day-ahead prices, load, and generation allow at most a one-year range per request, while document-based (curve) items such as outages and capacity allocations return at most 100 documents per request (200 for outages), with an offset parameter (0-4800) on some items allowing paging up to 4,900 documents. Over-limit queries are rejected with an Acknowledgement_MarketDocument explaining the reason.