Outbound

Reply in existing thread (Tier1+)

post/v1/reply

Request

  • Base URL: https://api.thrd.email
  • URL: https://api.thrd.email/v1/reply
  • Auth: HTTP bearer

Headers

Idempotency-Keystring required

Required. Retained for 259200 seconds.

Request body

thread_idstring uuid required
textstring
htmlstring
tostring email
ccstring[]

Additional CC recipients. Replies preserve historical thread CC and also keep recipients from the latest inbound To-line (reply-all behavior). Tier 1 (sandbox) may not add new CC addresses in cc[]; it can only keep thread history automatically.

security_ack_tokenstring

Required only when source inbound message has high prompt-injection risk on Tier 2/3. Obtain via POST /v1/security/ack.

Response

Accepted

Changes

No recorded changes to this operation across all 1 revision of this API.