Magento 2 B2B Registration extension now supports both GraphQL & REST APIs for mapping data with other systems or applications, please see details in the link below.
GraphQL API
This is the list of GraphQL APIs that B2B Registration extension supports:
Magento 2 B2B Registration GraphQL API Support
REST API
Here come the REST APIs of B2B Registration:
Magento 2 B2B Registration REST API Support
* NOTE:
Explanation of b2b_activasion_status types:
| Value | Label |
| 0 | Normal Account |
| 1 | B2B Pending |
| 2 | B2B Approval |
| 3 | B2B_REJECT |