Sends a typing indicator to a chat. Returns a delivery ID
with status: "pending".
Documentation Index
Fetch the complete documentation index at: https://messages.dev/docs/llms.txt
Use this file to discover all available pages before exploring further.
Use an API key as a bearer token: Authorization: Bearer sk_live_...
Each key has a set of scopes that gate which endpoints it can call:
messages:read, messages:write, chats:read, lines:read,
reactions:read, reactions:write, typing:read, typing:write,
receipts:read, receipts:write, webhooks:read, webhooks:write,
outbox:read, files:read, files:write. Keys can also be restricted
to a subset of lines.