You can request a subscription to one or more API of STLab tools (e.g. FRED, Tìpalo. etc.). Accordingly, you will receive an API key for each of the subscribed API.Each key has a validity of 1 year and enables 1,500 requests per day with an additional limit of 5 requests per minute.
For specific academic or research projects we might grant keys with higher request limits. In those cases, please write an email to firstname.lastname@example.org by providing a justification for your needs.