The MCP tool directory.

Lists items starred by a user.

Retrieves all custom emojis for the Slack workspace (image URLs or aliases), not standard Unicode emojis; does not include usage statistics or creation dates.

Lists user groups in a Slack workspace, including user-created and default groups; results for large workspaces may be paginated.

Lists all reactions added by a specific user to messages, files, or file comments in Slack, useful for engagement analysis when the item content itself is not required.

DEPRECATED: Lists all reminders with their details for the authenticated Slack user. Use `list_reminders` instead.

List all users in the workspace including deactivated users. Supports cursor-based pagination.

Retrieves a paginated list of admin users for a specified Slack workspace.

Retrieves all messages and files pinned to a specified channel; the caller must have access to this channel.

DEPRECATED: Lists items starred by a user. Use `list_starred_items` instead.

Looks up section IDs in a Slack Canvas for use with targeted edit operations. Section IDs are needed for insert_after, insert_before, delete, and section-specific replace operations.

Manually sets a user's Slack presence, overriding automatic detection; this setting persists across connections but can be overridden by user actions or Slack's auto-away (e.g., after 10 mins of inactivity).

Marks a specific Slack reminder as complete using its `reminder` ID; **DEPRECATED**: This Slack API endpoint ('reminders.complete') was deprecated in March 2023 and is not recommended for new applications.

Open a DM or multi-person DM. Pass 1 user ID for DM, 2-8 for group DM.

Opens or resumes a Slack direct message (DM) or multi-person direct message (MPIM) by providing either user IDs or an existing channel ID.

DEPRECATED: Opens or resumes a Slack direct message (DM) or multi-person direct message (MPIM). Use `open_dm` instead.

Pin a message to a channel. Cannot pin channel join messages or files.

Pins a message to a specified Slack channel; the message must not already be pinned.

DEPRECATED: Registers participants removed from a Slack call. Use `remove_call_participants` instead.

DEPRECATED: Registers a new call in Slack using `calls.add` for third-party call integration. Use `start_call` instead.

DEPRECATED: Registers new participants added to a Slack call. Use `add_call_participants` instead.

Removes the Slack reference to an external file (which must have been previously added via the remote files API), specified by either its `external_id` or `file` ID (one of which is required), without deleting the actual external file.

Removes a star from a previously starred Slack item (message, file, file comment, channel, group, or DM), requiring identification via `file`, `file_comment`, `channel` (for channel/group/DM), or both `channel` and `timestamp` (for a message).

Removes a specified user from a Slack conversation (channel); the caller must have permissions to remove users and cannot remove themselves using this action.

Remove a bookmark from a channel.

Registers participants removed from a Slack call.

Remove an emoji reaction from a message.

Removes an emoji reaction from a message, file, or file comment in Slack.

Renames a Slack channel, automatically adjusting the new name to meet naming conventions (e.g., converting to lowercase), which may affect integrations using the old name.

Renames a public or private Slack channel; for Enterprise Grid workspaces, the user must be a Workspace Admin or Channel Manager.

Renames an existing custom emoji in a Slack workspace, updating all its instances.