Drillster API
The Drillster REST API (v2.1.1) lets developers integrate Drillster's adaptive learning and training platform into external applications. Roughly 180 documented endpoints and 200 response objects cover user account provisioning, group and staff management, group membership and invitations, catalogs and subscriptions, drills, playables and repertoire, tests and test results, objectives and evaluations, and organization administration. Requests are JSON over HTTPS with OAuth 2.0 bearer tokens; write operations are form-encoded. Event notifications are delivered separately over webhooks.