Slack MCP Server

conversations_history:

Get messages from the channel (or DM) by channel_id, the last row/column in the response is used as 'cursor' parameter for pagination if not empty

conversations_replies:

Get a thread of messages posted to a conversation by channelID and thread_ts, the last row/column in the response is used as cursor parameter for pagination if…

conversations_add_message

Add a message to a public channel, private channel, or direct message (DM, or IM) conversation by channel_id and thread_ts.

conversations_search_messages

Search messages in a public channel, private channel, or direct message (DM, or IM) conversation using filters.

channels_list:

Get list of channels

reactions_add:

Add an emoji reaction to a message in a public channel, private channel, or direct message (DM, or IM) conversation.

reactions_remove:

Remove an emoji reaction from a message in a public channel, private channel, or direct message (DM, or IM) conversation.

users_search:

Search for users by name, email, or display name.

usergroups_list:

List all user groups (subteams) in the workspace.

usergroups_create:

Create a new user group in the workspace.

usergroups_update:

Update an existing user group's metadata.

usergroups_users_update:

Update the members of a user group.

usergroups_me:

Manage your user group membership: list groups you're in, join a group, or leave a group.

conversations_unreads

Get unread messages across all channels efficiently.

conversations_mark

Mark a channel or DM as read.

saved_list

List saved items from Slack's "Save for Later" panel.

saved_update

Update a saved item: mark as completed, set a due date/reminder, or both.

saved_clear_completed

Clear all completed saved items from the "Save for Later" panel.