cURL
curl -X POST "https://api.fitsociety.io/public/v1/workout/performance/sessions/start" \
-H "Authorization: Bearer <access_token>" \
-H "Idempotency-Key: <stable_request_key>" \
-H "Content-Type: application/json" \
-d '{}'const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({programmeScheduleItemId: '67f1234567890abcdef1234', plannedDate: '2026-09-09'})
};
fetch('https://api.fitsociety.io/public/v1/workout/performance/sessions/start', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.fitsociety.io/public/v1/workout/performance/sessions/start"
payload = {
"programmeScheduleItemId": "67f1234567890abcdef1234",
"plannedDate": "2026-09-09"
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"requiresConfirmation": false,
"confirmationToken": null,
"confirmationTokenExpiresAt": null,
"session": {
"id": "67f1234567890abcdef1234",
"planId": null,
"programmeScheduleItemId": null,
"plannedDate": "2026-09-08",
"locationId": null,
"planMomentId": null,
"status": "in_progress",
"startedAt": "2026-04-12T10:00:00.000Z",
"endedAt": null,
"rating": 8,
"difficulty": "Moderate",
"emojiRating": "Energized",
"notes": "Session felt good overall.",
"showSetRpe": true,
"activeExerciseId": null,
"activePerformanceId": null,
"activeExerciseUpdatedAt": null,
"provenance": {
"origin": "coach",
"startedByActorType": "coach",
"startedByClientId": null,
"startedByCoachId": null,
"executedByCoachId": null,
"completedByActorType": "",
"completedByClientId": null,
"completedByCoachId": null,
"endedByActorType": "",
"endedByClientId": null,
"endedByCoachId": null,
"lastUpdatedByActorType": "coach",
"lastUpdatedByClientId": null,
"lastUpdatedByCoachId": null
},
"planMoment": {
"id": "67f1234567890abcdef1234",
"name": "Day 1",
"description": "Upper body push.",
"date": "2026-04-15",
"order": 0,
"scoring": {
"scoringType": "forTime",
"descriptionOnly": true,
"acceptsManualResult": true,
"targetValue": null,
"timeDomain": {
"windowSeconds": null,
"timeCapSeconds": 900,
"rounds": 3,
"intervalSeconds": null,
"intervalCount": null,
"workSeconds": null,
"restSeconds": null
},
"scoreValidation": {
"timeCapSeconds": 900,
"maxReps": null,
"expectedIntervals": null
},
"result": {
"roundsCompleted": 5,
"repsPerRound": 30,
"extraReps": 12,
"totalReps": 162,
"intervalReps": [
12,
11,
10
],
"elapsedSeconds": 742,
"finishedBeforeCap": true,
"timeCapSeconds": 900,
"maxLoadKg": 120
}
}
}
},
"data": {
"id": "67f1234567890abcdef1234",
"planId": null,
"programmeScheduleItemId": null,
"plannedDate": "2026-09-08",
"locationId": null,
"planMomentId": null,
"status": "in_progress",
"startedAt": "2026-04-12T10:00:00.000Z",
"endedAt": null,
"rating": 8,
"difficulty": "Moderate",
"emojiRating": "Energized",
"notes": "Session felt good overall.",
"showSetRpe": true,
"activeExerciseId": null,
"activePerformanceId": null,
"activeExerciseUpdatedAt": null,
"provenance": {
"origin": "coach",
"startedByActorType": "coach",
"startedByClientId": null,
"startedByCoachId": null,
"executedByCoachId": null,
"completedByActorType": "",
"completedByClientId": null,
"completedByCoachId": null,
"endedByActorType": "",
"endedByClientId": null,
"endedByCoachId": null,
"lastUpdatedByActorType": "coach",
"lastUpdatedByClientId": null,
"lastUpdatedByCoachId": null
},
"planMoment": {
"id": "67f1234567890abcdef1234",
"name": "Day 1",
"description": "Upper body push.",
"date": "2026-04-15",
"order": 0,
"scoring": {
"scoringType": "forTime",
"descriptionOnly": true,
"acceptsManualResult": true,
"targetValue": null,
"timeDomain": {
"windowSeconds": null,
"timeCapSeconds": 900,
"rounds": 3,
"intervalSeconds": null,
"intervalCount": null,
"workSeconds": null,
"restSeconds": null
},
"scoreValidation": {
"timeCapSeconds": 900,
"maxReps": null,
"expectedIntervals": null
},
"result": {
"roundsCompleted": 5,
"repsPerRound": 30,
"extraReps": 12,
"totalReps": 162,
"intervalReps": [
12,
11,
10
],
"elapsedSeconds": 742,
"finishedBeforeCap": true,
"timeCapSeconds": 900,
"maxLoadKg": 120
}
}
}
}
},
"meta": {
"requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
"rateLimit": {
"limit": 10,
"remaining": 9,
"resetSeconds": 1
},
"idempotency": {
"replayed": false
}
}
}
Sessions and performance
Start, continue, fully reset, or clear freestyle performance
For an ordinary recurring plan day, a normal start after completion creates a new session with fresh performances and preserves all prior sessions and results. No refresh, resumeAction, or confirmation token is needed when no active attempt exists. Active/paused attempts retain the existing confirmation flow. A matching active session can still be continued after its plan or day is removed; removed prescriptions cannot start a new session. Explicit plan restarts preserve prior completed performances. A confirmation token is valid for ten minutes and can be consumed once for its active attempt. A stale continue/restart confirmation never creates a new attempt; if the attempt changed, reload its current state and obtain a fresh confirmation before retrying.
Requires the workout_sessions:write scope. This operation maps to /app/v1/workout/performance/sessions/start and retains its Workout V2 permission, feature-flag, and resource-scope checks.
The clientId path parameter is resolved inside the company bound to the Public API token when present.
POST
/
public
/
v1
/
workout
/
performance
/
sessions
/
start
cURL
curl -X POST "https://api.fitsociety.io/public/v1/workout/performance/sessions/start" \
-H "Authorization: Bearer <access_token>" \
-H "Idempotency-Key: <stable_request_key>" \
-H "Content-Type: application/json" \
-d '{}'const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({programmeScheduleItemId: '67f1234567890abcdef1234', plannedDate: '2026-09-09'})
};
fetch('https://api.fitsociety.io/public/v1/workout/performance/sessions/start', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.fitsociety.io/public/v1/workout/performance/sessions/start"
payload = {
"programmeScheduleItemId": "67f1234567890abcdef1234",
"plannedDate": "2026-09-09"
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"requiresConfirmation": false,
"confirmationToken": null,
"confirmationTokenExpiresAt": null,
"session": {
"id": "67f1234567890abcdef1234",
"planId": null,
"programmeScheduleItemId": null,
"plannedDate": "2026-09-08",
"locationId": null,
"planMomentId": null,
"status": "in_progress",
"startedAt": "2026-04-12T10:00:00.000Z",
"endedAt": null,
"rating": 8,
"difficulty": "Moderate",
"emojiRating": "Energized",
"notes": "Session felt good overall.",
"showSetRpe": true,
"activeExerciseId": null,
"activePerformanceId": null,
"activeExerciseUpdatedAt": null,
"provenance": {
"origin": "coach",
"startedByActorType": "coach",
"startedByClientId": null,
"startedByCoachId": null,
"executedByCoachId": null,
"completedByActorType": "",
"completedByClientId": null,
"completedByCoachId": null,
"endedByActorType": "",
"endedByClientId": null,
"endedByCoachId": null,
"lastUpdatedByActorType": "coach",
"lastUpdatedByClientId": null,
"lastUpdatedByCoachId": null
},
"planMoment": {
"id": "67f1234567890abcdef1234",
"name": "Day 1",
"description": "Upper body push.",
"date": "2026-04-15",
"order": 0,
"scoring": {
"scoringType": "forTime",
"descriptionOnly": true,
"acceptsManualResult": true,
"targetValue": null,
"timeDomain": {
"windowSeconds": null,
"timeCapSeconds": 900,
"rounds": 3,
"intervalSeconds": null,
"intervalCount": null,
"workSeconds": null,
"restSeconds": null
},
"scoreValidation": {
"timeCapSeconds": 900,
"maxReps": null,
"expectedIntervals": null
},
"result": {
"roundsCompleted": 5,
"repsPerRound": 30,
"extraReps": 12,
"totalReps": 162,
"intervalReps": [
12,
11,
10
],
"elapsedSeconds": 742,
"finishedBeforeCap": true,
"timeCapSeconds": 900,
"maxLoadKg": 120
}
}
}
},
"data": {
"id": "67f1234567890abcdef1234",
"planId": null,
"programmeScheduleItemId": null,
"plannedDate": "2026-09-08",
"locationId": null,
"planMomentId": null,
"status": "in_progress",
"startedAt": "2026-04-12T10:00:00.000Z",
"endedAt": null,
"rating": 8,
"difficulty": "Moderate",
"emojiRating": "Energized",
"notes": "Session felt good overall.",
"showSetRpe": true,
"activeExerciseId": null,
"activePerformanceId": null,
"activeExerciseUpdatedAt": null,
"provenance": {
"origin": "coach",
"startedByActorType": "coach",
"startedByClientId": null,
"startedByCoachId": null,
"executedByCoachId": null,
"completedByActorType": "",
"completedByClientId": null,
"completedByCoachId": null,
"endedByActorType": "",
"endedByClientId": null,
"endedByCoachId": null,
"lastUpdatedByActorType": "coach",
"lastUpdatedByClientId": null,
"lastUpdatedByCoachId": null
},
"planMoment": {
"id": "67f1234567890abcdef1234",
"name": "Day 1",
"description": "Upper body push.",
"date": "2026-04-15",
"order": 0,
"scoring": {
"scoringType": "forTime",
"descriptionOnly": true,
"acceptsManualResult": true,
"targetValue": null,
"timeDomain": {
"windowSeconds": null,
"timeCapSeconds": 900,
"rounds": 3,
"intervalSeconds": null,
"intervalCount": null,
"workSeconds": null,
"restSeconds": null
},
"scoreValidation": {
"timeCapSeconds": 900,
"maxReps": null,
"expectedIntervals": null
},
"result": {
"roundsCompleted": 5,
"repsPerRound": 30,
"extraReps": 12,
"totalReps": 162,
"intervalReps": [
12,
11,
10
],
"elapsedSeconds": 742,
"finishedBeforeCap": true,
"timeCapSeconds": 900,
"maxLoadKg": 120
}
}
}
}
},
"meta": {
"requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
"rateLimit": {
"limit": 10,
"remaining": 9,
"resetSeconds": 1
},
"idempotency": {
"replayed": false
}
}
}
Authorizations
Public API access token issued by /public/v1/oauth/token. Example: Authorization: Bearer fspt_.... Each resource request rechecks the token company's current provider access. Disabling access blocks existing tokens with 403 auth.provider_unavailable.
Headers
Required for Public API write requests. Reusing the same key with the same method, path, and body replays the stored successful response; reusing it with a different request returns 409 idempotency.conflict.
Required string length:
1 - 200Example:
"booking-create-20260714-001"
Body
application/json
- Option 1
- Option 2
Example:
"67f1234567890abcdef1234"
Example:
"67f1234567890abcdef1234"
Optional calendar programme item. Supply together with plannedDate; the item must be a workout referencing planMomentId.
Example:
"67f1234567890abcdef1234"
Optional canonical occurrence date. Supply together with programmeScheduleItemId.
Pattern:
^\d{4}-\d{2}-\d{2}$Example:
"2026-09-09"
Example:
"67f1234567890abcdef1234"
reset_performance keeps the active freestyle session and exercise rows, while resetting logged values and the session timer; it is not valid for plan or WOD sessions.
Available options:
continue, restart, reset_performance Example:
"continue"
Example:
"a0eb661b-bf61-4af6-98f0-d7d7ff8a3e75"