Send a discussion message

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Sends a Markdown-formatted message to the invite discussion.

Sending via the API is treated as an invitee-led action. Messages can be sent when the invitee's discussion setting is always on or invitee-led. If discussions are disabled, this endpoint returns 403.

Discussion availability is configured globally by the invitee's VTC and cannot be overridden per invite or per inviting VTC.

Path Parameters
  • invite_id
    Type: string
    required
Body
required
application/json
  • body
    Type: string
    min length:  
    1
    max length:  
    10000
    required
Responses
  • application/json
  • application/json
Request Example for post/invites/{invite_id}/messages
curl https://api.eventthing.example/v1/invites/inv_4h29sm/messages \
  --request POST \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer YOUR_SECRET_TOKEN' \
  --data '{
  "body": "We'\''ve changed the meetup time to **18:30 UTC**."
}'

{
  "id": "msg_82ks9m",
  "invite_id": "inv_4h29sm",
  "author": {
    "id": "usr_18mx2q",
    "display_name": "Bean",
    "truckersmp_id": 7654321
  },
  "body": "string",
  "created_at": "2026-08-30T21:47:34.389Z",
  "edited_at": null
}

Message sent.