Before accessing the API, ensure you have one of the following editions of Salesforce, in order to use the API.
In Salesforce, this can be found under Setup > Company Profile > Company Information > Organization Edition.
Editions with API Access
- Enterprise Edition
- Unlimited Edition
- Developer Edition
- Performance Edition
Editions without API Access
- Group Edition
- Essentials Edition
- Professional Edition*
*For Professional Edition organizations, all requests for API access must be purchased and can be processed contacting your Account Executive.
This means if your edition does not have API access by default, you must discuss your Salesforce representative about having access, there may be a fee associated with this feature