Add a custom exercise
Adds an exercise to the caller’s library so it can be picked in a mesocycle.
/api/training/exercises__Secure-better-auth.session_tokenAPI key · cookierequiredBetter Auth session. Signing in (Google or email magic link) sets an HttpOnly session cookie that scopes every request to that account. The web app and CLI use this; agents use the OAuth 2.1 flow of the MCP server.
AuthorizationBearer token · headerrequiredPersonal API key sent as Authorization: Bearer skcal_…. Create and scope keys in the app under your profile → API keys. Keys default to full access; a scoped key is limited to its granted resource:action permissions and cannot manage other keys.
application/jsonThe exercise.
namestringrequiredExercise name.
musclestringrequiredMuscle key from the library.
equipmentstringrequiredEquipment type.
barbelldumbbellmachinecablesmithbodyweightbandothervideoUrlstring<uri> | nullOptional https link to a demo video.
The exercise was created.
objectThe request body or parameters failed validation.
errorstringrequiredHuman-readable failure reason.
detailstringOptional extra context, present on upstream failures.