Cost of API usage

[SatyaMallya]

For the F5 API family below, is there any cost for using API? Per API usage or by tiers or subscription to a program, etc. outside of the purchase of the products.

https://clouddocs.f5.com/products/big-iq/mgmt-api/v0.0/ApiReferences/bigiq_public_api_ref/r_public_api_references.html

[JRahm]

The APIs for products you own do not cost to consume.