Reply to Instagram comments via API

Send to the comment's conversation to reply publicly under it. Text only, any time.

POST/v1/messagesmessages:send

Public reply

Request

curl -X POST "https://api.iotabot.com/v1/messages" \
  -H "Authorization: Bearer $IOTABOT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "conversation_id": "6a4bc7…",
  "text": "Thanks! Sent you the details in a DM."
}' \
  -H "Idempotency-Key: order-1042-shipped"

Response · 202

{
  "data": {
    "id": "6a4ba0f1c3f1a2b3c4d5e733",
    "object": "message",
    "status": "queued",
    "channel": "instagram",
    "conversation_id": "6a4b9e21c3f1a2b3c4d5e6f7",
    "created_at": "2026-10-01T09:16:10.004Z"
  }
}

Errors

window_closedconversation_closedintegration_pausedprivate_reply_expiredprivate_reply_usedrecipient_opted_outunsupported_attachmentfile_already_usedattachments_too_largeapi_quota_exceededidempotency_key_reusedidempotency_in_progress

To answer the commenter privately instead, add reply_as: "dm" — see Private replies.