cURL
curl -X POST "https://api.fitsociety.io/public/v1/workout/groups/runs/{runId}/participants" \
-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({
participants: [
{
clientId: '67f1234567890abcdef1234',
workoutSource: 'auto_assigned_plan',
planId: null,
planMomentId: null,
resumeAction: 'continue',
confirmationToken: 'a0eb661b-bf61-4af6-98f0-d7d7ff8a3e75'
}
]
})
};
fetch('https://api.fitsociety.io/public/v1/workout/groups/runs/{runId}/participants', 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/groups/runs/{runId}/participants"
payload = { "participants": [
{
"clientId": "67f1234567890abcdef1234",
"workoutSource": "auto_assigned_plan",
"planId": None,
"planMomentId": None,
"resumeAction": "continue",
"confirmationToken": "a0eb661b-bf61-4af6-98f0-d7d7ff8a3e75"
}
] }
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"run": {
"runId": "67f1234567890abcdef1234",
"source": "calendar_event",
"status": "active",
"calendarEventId": null,
"manualSessionKey": "small-group-2026-06-04-09",
"startedAt": null,
"endedAt": null
},
"results": [
{
"clientId": "67f1234567890abcdef1234",
"ok": true,
"sessionId": null,
"sessionStatus": "planned",
"workoutSource": "auto_assigned_plan",
"sourceLabel": "Full Body - Day 2",
"templateId": null,
"errorCode": "",
"requiresConfirmation": false,
"confirmationToken": null,
"confirmationTokenExpiresAt": null,
"timerStartedAt": null,
"timerPausedAt": null,
"timerElapsedMs": 90000,
"runTimer": {
"timerStartedAt": null,
"timerPausedAt": null,
"timerElapsedMs": 300000
}
}
],
"counts": {
"total": 2,
"started": 1,
"pendingConfirmation": 1,
"failed": 0
}
},
"meta": {
"requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
"rateLimit": {
"limit": 10,
"remaining": 9,
"resetSeconds": 1
},
"idempotency": {
"replayed": false
}
}
}
Groups
Add participants to an active group workout run
Adds new participants and re-adds participants whose previous run entry is terminal, such as cancelled, stopped, completed, or error. A member whose workout resolution or session start fails remains in the run as a retryable error participant, with the failure code in the result. Participants already pending, in progress, or paused are left unchanged.
Requires the workout_groups:write scope. This operation maps to /app/v1/coach/workout/group/runs/:runId/participants 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
/
groups
/
runs
/
{runId}
/
participants
cURL
curl -X POST "https://api.fitsociety.io/public/v1/workout/groups/runs/{runId}/participants" \
-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({
participants: [
{
clientId: '67f1234567890abcdef1234',
workoutSource: 'auto_assigned_plan',
planId: null,
planMomentId: null,
resumeAction: 'continue',
confirmationToken: 'a0eb661b-bf61-4af6-98f0-d7d7ff8a3e75'
}
]
})
};
fetch('https://api.fitsociety.io/public/v1/workout/groups/runs/{runId}/participants', 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/groups/runs/{runId}/participants"
payload = { "participants": [
{
"clientId": "67f1234567890abcdef1234",
"workoutSource": "auto_assigned_plan",
"planId": None,
"planMomentId": None,
"resumeAction": "continue",
"confirmationToken": "a0eb661b-bf61-4af6-98f0-d7d7ff8a3e75"
}
] }
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"run": {
"runId": "67f1234567890abcdef1234",
"source": "calendar_event",
"status": "active",
"calendarEventId": null,
"manualSessionKey": "small-group-2026-06-04-09",
"startedAt": null,
"endedAt": null
},
"results": [
{
"clientId": "67f1234567890abcdef1234",
"ok": true,
"sessionId": null,
"sessionStatus": "planned",
"workoutSource": "auto_assigned_plan",
"sourceLabel": "Full Body - Day 2",
"templateId": null,
"errorCode": "",
"requiresConfirmation": false,
"confirmationToken": null,
"confirmationTokenExpiresAt": null,
"timerStartedAt": null,
"timerPausedAt": null,
"timerElapsedMs": 90000,
"runTimer": {
"timerStartedAt": null,
"timerPausedAt": null,
"timerElapsedMs": 300000
}
}
],
"counts": {
"total": 2,
"started": 1,
"pendingConfirmation": 1,
"failed": 0
}
},
"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"
Path Parameters
Group workout run id.
Example:
"67f1234567890abcdef1234"
Body
application/json
Minimum array length:
1Show child attributes
Show child attributes