Slack
Slack is a channel-based messaging platform. With Slack, people can work together more effectively, connect all their software tools and services, and find the information they need to do their best work — all within a secure, enterprise-grade environment.
https://slack.run.tools
How to connect
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Smithery (hosted)
1. Open https://smithery.ai/servers/slack 2. Click Connect and complete OAuth in your MCP client (Claude, Cursor, VS Code, etc.) 3. MCP endpoint: https://slack.run.tools
Tools (50)
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SLACK_ACTIVATE_OR_MODIFY_DO_NOT_DISTURB_DURATIONDEPRECATED: Turns on Do Not Disturb mode for the current user, or changes its duration. Use `set_dnd_duration` instead.
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SLACK_ADD_A_CUSTOM_EMOJI_TO_A_SLACK_TEAMDEPRECATED: Adds a custom emoji to a Slack workspace given a unique name and an image URL. Use `add_emoji` instead.
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SLACK_ADD_AN_EMOJI_ALIAS_IN_SLACKAdds an alias for an existing custom emoji in a Slack Enterprise Grid organization.
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SLACK_ADD_A_REMOTE_FILE_FROM_A_SERVICEAdds a reference to an external file (e.g., Google Drive, Dropbox) to Slack for discovery and sharing, requiring a unique `external_id` and an `external_url` accessible by Slack.
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SLACK_ADD_A_STAR_TO_AN_ITEMStars a channel, file, file comment, or a specific message in Slack.
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SLACK_ADD_CALL_PARTICIPANTSRegisters new participants added to a Slack call.
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SLACK_ADD_EMOJIAdds a custom emoji to a Slack workspace given a unique name and an image URL; subject to workspace emoji limits.
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SLACK_ADD_REACTION_TO_AN_ITEMAdds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions.
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SLACK_ARCHIVE_A_PUBLIC_OR_PRIVATE_CHANNELArchives a Slack public or private channel, making it read-only; the primary 'general' channel cannot be archived.
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SLACK_ARCHIVE_A_SLACK_CONVERSATIONArchives a Slack conversation by its ID, rendering it read-only and hidden while retaining history, ideal for cleaning up inactive channels; be aware that some channels (like #general or certain DMs) cannot be archived and this may impact connected integrations.
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SLACK_CHAT_POST_MESSAGEDEPRECATED: Posts a message to a Slack channel, direct message, or private channel. Use `send_message` instead.
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SLACK_CLEAR_STATUSClears the Slack status for the authenticated user, removing any custom text and emoji.
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SLACK_CLOSE_DM_OR_MULTI_PERSON_DMCloses a Slack direct message (DM) or multi-person direct message (MPDM) channel, removing it from the user's sidebar without deleting history; this action affects only the calling user's view.
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SLACK_CREATE_A_REMINDERCreates a Slack reminder with specified text and time; time accepts Unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every Thursday at 2pm').
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SLACK_CREATE_A_SLACK_USER_GROUPCreates a new User Group (often referred to as a subteam) in a Slack workspace.
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SLACK_CREATE_CANVASCreates a new Slack Canvas with the specified title and optional content.
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SLACK_CREATE_CHANNELInitiates a public or private channel-based conversation
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SLACK_CREATE_CHANNEL_BASED_CONVERSATIONCreates a new public or private Slack channel with a unique name; the channel can be org-wide, or team-specific if `team_id` is given (required if `org_wide` is false or not provided).
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SLACK_CUSTOMIZE_URL_UNFURLCustomizes URL previews (unfurling) in a specific Slack message using a URL-encoded JSON in `unfurls` to define custom content or remove existing previews.
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SLACK_CUSTOMIZE_URL_UNFURLING_IN_MESSAGESDEPRECATED: Customizes URL previews (unfurling) in a specific Slack message. Use `customize_url_unfurl` instead.
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SLACK_DELETE_A_COMMENT_ON_A_FILEDeletes a specific comment from a file in Slack; this action is irreversible.
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SLACK_DELETE_A_FILE_BY_IDPermanently deletes an existing file from a Slack workspace using its unique file ID; this action is irreversible and also removes any associated comments or shares.
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SLACK_DELETE_A_PUBLIC_OR_PRIVATE_CHANNELPermanently and irreversibly deletes a specified public or private channel, including all its messages and files, within a Slack Enterprise Grid organization.
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SLACK_DELETE_A_SCHEDULED_MESSAGE_IN_A_CHATDeletes a pending, unsent scheduled message from the specified Slack channel, identified by its `scheduled_message_id`.
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SLACK_DELETE_A_SLACK_REMINDERDeletes an existing Slack reminder, typically when it is no longer relevant or a task is completed; this operation is irreversible.
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SLACK_DELETE_CANVASDeletes a Slack Canvas permanently.
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SLACK_DELETES_A_MESSAGE_FROM_A_CHATDeletes a message, identified by its channel ID and timestamp, from a Slack channel, private group, or direct message conversation; the authenticated user or bot must be the original poster.
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SLACK_DELETE_USER_PROFILE_PHOTODeletes the Slack profile photo for the user identified by the token, reverting them to the default avatar; this action is irreversible and succeeds even if no custom photo was set.
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SLACK_DISABLE_AN_EXISTING_SLACK_USER_GROUPDisables a specified, currently enabled Slack User Group by its unique ID, effectively archiving it by setting its 'date_delete' timestamp; the group is not permanently deleted and can be re-enabled.
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SLACK_EDIT_CANVASEdits a Slack Canvas with granular control over content placement. Supports replace, insert (before/after/start/end) operations for flexible content management.
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SLACK_ENABLE_A_SPECIFIED_USER_GROUPEnables a disabled User Group in Slack using its ID, reactivating it for mentions and permissions; this action only changes the enabled status and cannot create new groups or modify other properties.
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SLACK_ENABLE_PUBLIC_SHARING_OF_A_FILEEnables public sharing for an existing Slack file by generating a publicly accessible URL; this action does not create new files.
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SLACK_END_A_CALL_WITH_DURATION_AND_IDEnds an ongoing Slack call, identified by its ID (obtained from `calls.add`), optionally specifying the call's duration.
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SLACK_END_SNOOZEEnds the current user's snooze mode immediately.
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SLACK_END_USER_DO_NOT_DISTURB_SESSIONEnds the authenticated user's current Do Not Disturb (DND) session in Slack, affecting only DND status and making them available; if DND is not active, Slack acknowledges the request without changing status.
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SLACK_END_USER_SNOOZE_MODE_IMMEDIATELYDEPRECATED: Ends the current user's snooze mode immediately. Use `end_snooze` instead.
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SLACK_FETCH_BOT_USER_INFORMATIONFetches information for a specified, existing Slack bot user; will not work for regular user accounts or other integration types.
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SLACK_FETCH_CONVERSATION_HISTORYFetches a chronological list of messages and events from a specified Slack conversation, accessible by the authenticated user/bot, with options for pagination and time range filtering.
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SLACK_FETCH_CURRENT_TEAM_INFO_WITH_OPTIONAL_TEAM_SCOPEDEPRECATED: Fetches comprehensive metadata about the current Slack team. Use `fetch_team_info` instead.
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SLACK_FETCH_DND_STATUS_FOR_MULTIPLE_TEAM_MEMBERSDEPRECATED: Retrieves a user's current Do Not Disturb status. Use `get_team_dnd_status` instead.
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SLACK_FETCH_ITEM_REACTIONSFetches reactions for a Slack message, file, or file comment, requiring one of: channel and timestamp; file ID; or file comment ID.
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SLACK_FETCH_MESSAGE_THREAD_FROM_A_CONVERSATIONRetrieves replies to a specific parent message in a Slack conversation, using the channel ID and the parent message's timestamp (`ts`).
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SLACK_FETCH_TEAM_INFOFetches comprehensive metadata about the current Slack team, or a specified team if the provided ID is accessible.
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SLACK_FETCH_WORKSPACE_SETTINGS_INFORMATIONRetrieves detailed settings for a specific Slack workspace, primarily for administrators in an Enterprise Grid organization to view or audit workspace configurations.
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SLACK_FIND_CHANNELSFind channels in a Slack workspace by any criteria - name, topic, purpose, or description.
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SLACK_FIND_USER_BY_EMAIL_ADDRESSRetrieves the Slack user object for an active user by their registered email address; fails with 'users_not_found' if the email is unregistered or the user is inactive.
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SLACK_FIND_USERSFind users in a Slack workspace by any criteria - email, name, display name, or other text. Includes optimized email lookup for exact email matches.
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SLACK_GET_CANVASRetrieves a specific Slack Canvas by its ID, including its content and metadata.
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SLACK_GET_CHANNEL_CONVERSATION_PREFERENCESRetrieves conversation preferences (e.g., who can post, who can thread) for a specified channel, primarily for use within Slack Enterprise Grid environments.
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SLACK_GET_REMINDER_INFORMATIONRetrieves detailed information for an existing Slack reminder specified by its ID; this is a read-only operation.