Historical Data and Request Rate Limits

As of October 2024, the Open Data Hub API enforces the following quota limits for accessing historical data:

User Type	Costs	Max period of historical data	Requests per Second	Rate Limiting Criteria
Unregistered (no referrer)	free	5 days	10	per IP and query path
Unregistered (with referrer)	free	100 days	20	per referer, IP, and query path
Basic	free	1,000 days	50	per user-id, referer, IP, and query path
Advanced	for a fee	unlimited	100	per user-id, referer, IP, and query path
Premium	for a fee	unlimited	200	per user-id, referer, IP, and query path

More information:

• Pricing section on Data Access Service page: https://opendatahub.com/services/data-access/#pricing
• Http Referer: https://github.com/noi-techpark/odh-docs/wiki/Http-Referer

API Quota Exhaustion and Error Code 429 Handling

You might have seen error code 429 with the following error response:

{
  "hint": "https://github.com/noi-techpark/odh-docs/wiki/Api-Quota",
  "message": "You have exhausted your API Request Quota",
  "policy": "[see below]"
}

This is because you used all your calls that you were allowed to use.