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Thread replies are INTERNAL — they never reach the customer, never fire webhooks/integrations/SLA, and never move the ticket's latest message.

POST

https://api.gleap.io/v3/messages/{messageId}/thread

Authorizations

Authorizationstring · headerrequired

Bearer authentication header of the form Bearer <token>.

Path parameters

messageIdstringrequired

Headers

projectstringrequired

Bodyapplication/jsonrequired

dataany

Message payload; data.content is TipTap JSON (mention nodes intact). Typed any deliberately — TSOA silently strips Record<string, any>.

attachmentsobject[]

Show child attributes

namestringrequired

urlstringrequired

typestring

clientMutationIdstring

Client-supplied, so a retried optimistic send doesn't double-post.

Response

application/json

Updated November 1, 2026

curl --request POST \
  --url 'https://api.gleap.io/v3/messages/{messageId}/thread' \
  --header 'Authorization: Bearer <token>' \
  --header 'project: <project>' \
  --header 'Content-Type: application/json' \
  --data '{
  "clientMutationId": "<clientMutationId>"
}'

No example in the spec.