List public channels. Optional query filters by name substring.

List channels the authenticated user has joined.

Get details for a channel or private group by name or ID.

List private groups the authenticated user belongs to.

List members of a channel or private group.

Get channel history, newest first.

group merges consecutive same-user messages within 60s (token saver). expand_threads fetches thread replies. compact truncates to id/user/text/ts.

Search for text within a channel.

Get N messages before and after a target message (target flagged is_target).

Post a message to a channel or group.

Edit an existing message (needs room_id and message_id).

Delete a message (needs room_id and message_id). Destructive.

Get the replies in a thread.

Get pinned messages in a channel.

Reply into a thread. channel is auto-resolved from the parent if omitted.

Add an emoji reaction to a message (e.g. :thumbsup:).

Pin a message.

Unpin a message.

List users. Optional query filters by name substring.

Get details for a user by username.

List direct-message conversations.

Send a direct message to a user (creates the DM room if needed).

List files shared in a room.

Download a file from the configured Rocket.Chat server.

Returns an image, plain text, or a base64 blob depending on content type. Only fetches from the configured server host (SSRF-guarded, 25 MB cap).

Upload a base64-encoded file to a room.

Summarise channel activity over the last N hours (active users, threads, files).

Get messages that mention the authenticated user in a channel.

List channels with unread messages, sorted by unread count descending.

Mark all messages in a channel as read (clears the unread counter).