API registry / Zendesk Sell
Zendesk Sell
No machine-readable spec for Sell. Zendesk Sell (Sales CRM) API docs: https://developer.zendesk.com/api-reference/sales-crm/introduction/ (HTML docs only. Zendesk's published OAS (https://developer.zendesk.com/zendesk/oas.yaml) covers the Support API, not Sell; no Sell-specific spec found. Server https://api.getbase.com/v2.)
Zendesk Sell publishes no machine-readable API spec.