Sinch Conversation API

Overview

One unified API to send and receive messages across SMS, WhatsApp, RCS, MMS, Viber Business, Facebook Messenger, Instagram, Telegram, KakaoTalk, LINE, and WeChat. The API transcodes between a generic message format and channel-specific formats automatically. This skill covers the API layer — apps, contacts, conversations, messages, webhooks, templates, and batch sending. Channel-specific guidance (sender IDs, encoding, templates, media limits) lives in the dedicated channel skills: sinch-sms, sinch-mms, sinch-rcs, sinch-whatsapp. Load only the skill(s) for the channel(s) the user is working with — never load a channel skill for a channel the task doesn't touch.

Agent Instructions

Policy gate sinch-shared-policy@5 (sha256:4864cf0fa8d6): The policy digest below is binding as written. Before implementation or live execution, read the full shared Sinch policy once per conversation — skip it if this exact ID/version/fingerprint is already loaded; read it if the version is newer or the fingerprint differs. This skill's canonical operation routes live in its Agent Instructions and Links sections.

Sinch policy digest (binding):