Fax API
List and track fax (MMS/T.38) transmissions on Telnyx-backed fax numbers (sending flows through the Messaging API) Base path:/api/v1/fax
Endpoint count: 3
List fax message history
GET /api/v1/fax/cursor from a prior page’s meta.pagination.cursor to page forward.
string
Opaque pagination cursor from a prior page’s
meta.pagination.cursor. Omit for the first page.integer
Page size (1–200, default 25).
Get fax message details
GET /api/v1/fax/{id}string
required
Fax message ID (
msg_…).Get fax delivery status
GET /api/v1/fax/{id}/statusexternal_id first, then returns the live provider status (cached for ~10s per tenant). Returns 404 when no fax message exists for the tenant OR the transmission has not yet been dispatched (no external_id).
string
required
Fax message ID (
msg_…).