{"version":"v1","service":"cusp","endpoints":{"/api/v1/districts":"list of supported school districts","/api/v1/district/:id":"district config (calendar, tests, schools, identification matrix)","/api/v1/curriculum/:grade":"50-day curriculum for grade (k|3|5|gt)","/api/v1/practice/:concept":"generate a practice item for the given concept slug","/api/v1/tts/voices":"available voices for narration","/tts?voice=mom&text=…":"narrate text (audio/mpeg, cached)","/cusp/subscribe":"POST email capture"},"docs":"https://cusp.school/api"}