cURL
curl -X POST "https://api.fitsociety.io/public/v1/conversations/<conversationId>/messages" \
-H "Authorization: Bearer <access_token>" \
-H "Idempotency-Key: conversation-message-send-001" \
-H "Content-Type: application/json" \
-d '{
"conversationType": "group",
"senderCoachId": "66f7b8b1e13c8d25f4d3d90b",
"message": "Hi team, I added the meal-prep notes."
}'const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
senderCoachId: '66f7b8b1e13c8d25f4d3d90b',
message: 'Hi team, I added the meal-prep notes.'
})
};
fetch('https://api.fitsociety.io/public/v1/conversations/{conversationId}/messages', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.fitsociety.io/public/v1/conversations/{conversationId}/messages"
payload = {
"senderCoachId": "66f7b8b1e13c8d25f4d3d90b",
"message": "Hi team, I added the meal-prep notes."
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"message": {
"messageId": "66f7b8b1e13c8d25f4d3d90a",
"conversationId": "66f7b8b1e13c8d25f4d3d90a",
"conversationType": "direct",
"sender": {
"userId": "66f7b8b1e13c8d25f4d3d90a",
"role": "Coach",
"name": "Example name"
},
"type": "text",
"text": "string",
"hasMedia": true,
"fileName": "Example name",
"sentAt": "2026-07-14T10:00:00.000Z",
"editedAt": "2026-07-14T10:00:00.000Z",
"isDeleted": true
}
},
"meta": {
"requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
"rateLimit": {
"limit": 10,
"remaining": 9,
"resetSeconds": 1
},
"idempotency": {
"replayed": false
}
}
}Messages
Send conversation message
Requires conversation_messages:write. Sends a text message as the requesting coach when that coach is already an active participant in the direct or group conversation.
POST
/
public
/
v1
/
conversations
/
{conversationId}
/
messages
cURL
curl -X POST "https://api.fitsociety.io/public/v1/conversations/<conversationId>/messages" \
-H "Authorization: Bearer <access_token>" \
-H "Idempotency-Key: conversation-message-send-001" \
-H "Content-Type: application/json" \
-d '{
"conversationType": "group",
"senderCoachId": "66f7b8b1e13c8d25f4d3d90b",
"message": "Hi team, I added the meal-prep notes."
}'const options = {
method: 'POST',
headers: {
'Idempotency-Key': '<idempotency-key>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
senderCoachId: '66f7b8b1e13c8d25f4d3d90b',
message: 'Hi team, I added the meal-prep notes.'
})
};
fetch('https://api.fitsociety.io/public/v1/conversations/{conversationId}/messages', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));import requests
url = "https://api.fitsociety.io/public/v1/conversations/{conversationId}/messages"
payload = {
"senderCoachId": "66f7b8b1e13c8d25f4d3d90b",
"message": "Hi team, I added the meal-prep notes."
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text){
"data": {
"message": {
"messageId": "66f7b8b1e13c8d25f4d3d90a",
"conversationId": "66f7b8b1e13c8d25f4d3d90a",
"conversationType": "direct",
"sender": {
"userId": "66f7b8b1e13c8d25f4d3d90a",
"role": "Coach",
"name": "Example name"
},
"type": "text",
"text": "string",
"hasMedia": true,
"fileName": "Example name",
"sentAt": "2026-07-14T10:00:00.000Z",
"editedAt": "2026-07-14T10:00:00.000Z",
"isDeleted": true
}
},
"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
Requesting coach ID sending as. Other-coach delegation is not enabled.
Example:
"66f7b8b1e13c8d25f4d3d90b"
Required string length:
1 - 5000Example:
"Hi team, I added the meal-prep notes."
Available options:
direct, group Example:
"group"