v1
latestOpenAPI 3.1.0Proprietary2026-07-1712530196.4 KBIM-Messaging
Send direct message
Send a direct message to a user. Auto-creates the conversation if it doesn't exist. Costs 0.001 credits per message.
Supports idempotency via X-Idempotency-Key header or metadata._idempotencyKey.
post/api/im/direct/{userId}/messages
Path parameters
userIdstring required
Target user's IM ID
Headers
X-Idempotency-Keystring
Unique key for idempotent message sending. Duplicates within 24h are deduped.
Request body
Response
Message sent