Overview
SMS & contacts (Flare) — one-off transactional send, message history, A2P
campaigns (create, list, send/schedule with the full 10DLC
content-compliance, billing, and quota gates; opted-out contacts filtered
at fan-out), contact lists / segments used as campaign audiences, and full
contacts CRUD + search with opt-out handling. Authenticated with an API key
(x-api-key); requires the Flare API tier. Sends need sms:send; message
and campaign reads need sms:read; contact/list reads need contacts:read
and writes need contacts:write.