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API v1

API v1

Current stable contract

Versioning policyRelease changelog
Sandbox console

Add a partner-visible support message

Enterprise Governance, Security & Access

POST

/support/{ticketId}/messages

Add a partner-visible support message

Production onlyreplyToPartnerSupportTicket

Parameters

ticketIdstringpathRequired

Headers

AuthorizationstringRequired

Bearer sk_sandbox_<your_key> for sandbox requests.

Idempotency-KeystringheaderRequired

Unique string that makes write calls safe to retry on network failure. Required for money movement, trading, KYC, subscriptions, and webhook creation. Deduplicated for 24 hours -- duplicate keys return the cached response. HTTP 409 if a concurrent request with the same key is still in progress.

Example: dep_user42_1743152580

Request body

messagestring
attachmentsobject[]

Response fields

See the response format and API Reference for this endpoint.

Response codes

201Reply added and case moved to WAITING_ON_MYSTOCKS