Connect Your AI Agent with Slack for Slack

Verifying requests from Slack, slack signs its requests using a secret that's unique to your app. See the documentation

Upload a file. See the documentation

Update basic profile field such as name or title. See the documentation

Update a message. See the documentation

Update the list of users for a User Group. See the documentation

Set the current status for a user. See the documentation

Set the topic on a channel, specified by ID or by name — names are resolved automatically. See the documentation

Change the description or purpose of a channel. See the documentation

Send a message to a user, group, private channel or public channel. See the documentation

Send a message to a user or group. See the documentation

Send a message to a public or private channel. See the documentation

Customize advanced settings and send a message to a channel, group or user. See postMessage or scheduleMessage docs here

Send a large message (more than 3000 characters) to a channel, group or user. See postMessage or scheduleMessage docs here

Configure custom blocks and send to a channel, group, or user. See the documentation.

Search Slack messages and files using the Real-Time Search API. Supports keyword and semantic search across public and private channels. Use Get User Details first to find your user ID for filtering by 'my' messages. Returns matching messages with channel context, timestamps, and permalinks. See the documentation

Send a message as a threaded reply. See postMessage or scheduleMessage docs here

Send a message to a channel, user, or group. Accepts a channel ID (e.g. C1234567890) or channel name (e.g. #general or general) — names are resolved automatically. To reply to a thread, provide thread_ts from Get Channel History. Supports plain text with Slack mrkdwn formatting and Block Kit blocks. See the documentation

Return a list of all users in a workspace. See the documentation

Retrieves available options for the User Group field.

Retrieve a thread of messages posted to a conversation. See the documentation

Retrieves available options for the Reminder field.

Retrieve messages from a Slack conversation, including reactions. See the documentation

Retrieve members of a channel. Accepts a channel ID or NAME (e.g. general or #general) — names are resolved automatically. See the documentation

Retrieves available options for the Icon (emoji) field.

List all users in a User Group. See the documentation

Return a list of files within a team. See the documentation

List all available emojis in the Slack workspace. Optionally include emoji image URLs. See the documentation

Return a list of channels in a workspace. Always pass fields with just the properties you need (e.g. id,name) — a full channel object is ~1KB, so a workspace of any real size returns a payload large enough to be truncated before you ever see it. id,name covers most tasks; every other tool here accepts a channel NAME and resolves it, so you rarely need more. Returns has_more: true and next_cursor when more channels exist than were fetched — when you see that, raise numPages (or pass cursor) before answering any 'how many' or 'list every' question, otherwise your answer is silently incomplete. See the documentation

Remove a user from a conversation. See the documentation

Invite one or more users to an existing channel. Accepts a channel ID or NAME, and a user ID, EMAIL address or display name — all resolved automatically. Pass several users as a comma-separated list. See the documentation

Use when the user asks who am I, what's my user ID, what's my username, which workspace am I in, or what's my email — this is the default identity lookup and the one to call first in any session. Returns user ID, name, email, timezone, profile, and workspace metadata. Other tools like Search and List Channels can then filter by your user ID, and Post Message can use it as the channel to DM yourself. Prefer this over Get Current User, which returns a much larger payload and is only needed for full profile detail (locale, status, admin flags). See the documentation

Retrieve all replies in a message thread. Accepts a channel ID or channel name (resolved automatically). Use Get Channel History or Search to find the parent message's timestamp (thread_ts). Returns the parent message followed by all replies in chronological order. Pass fields (e.g. text,ts,user) unless you need full message objects — raw Slack messages carry blocks, attachments and edit metadata, so a long thread can run to tens of thousands of characters and be truncated before you see any of it. See the documentation

Return information about a file. See the documentation

Do NOT use for a plain "who am I" / "what's my user ID" question — call Get User Details for that; it answers the same question with a far smaller payload. Use this ONLY when you specifically need the full member profile: locale, timezone, presence/status, admin and owner flags, name variants, or workspace domain and enterprise metadata. Combines auth.test, users.info, users.profile.get and team.info. See Slack API docs.

Read the recent message history from a specific channel. Accepts a channel ID or channel name (resolved automatically). Use this when you want to see a channel's latest messages — unlike Search which finds messages by keyword. Returns messages with text, timestamps (ts), reactions, and user IDs. Message timestamps can be used with Get Thread Replies, Edit Message, and Add Reaction. Pass fields (e.g. text,ts,user) unless you need full message objects — raw Slack messages carry blocks, attachments and edit metadata, so a busy channel can run to tens of thousands of characters and be truncated before you see any of it. See the documentation

Retrieve details for a Slack channel, specified by ID or by name — names are resolved automatically. See the documentation

Find a user by their ID. Returns user profile information including name, email (requires users:read.email scope), timezone, and status. See the documentation

Find a user by matching against their email. See the documentation

Find a Slack message. See the documentation

Edit an existing message. Accepts a channel ID or channel name (resolved automatically). Requires the message timestamp (ts) from Get Channel History or Post Message. You can only edit messages posted by the same token/user. See the documentation

Permanently delete a message. This cannot be undone — confirm the exact message with the user before calling it. Identify the message first with Get Channel History or Search and quote its text back, rather than deleting by position ('the last one'). Accepts a channel ID or NAME for the conversation, resolved automatically. Slack only lets an identity delete its own messages, so this deletes as whichever identity posted: it retries automatically with the other identity if the first attempt returns cant_delete_message. See the documentation

Delete a file. See the documentation

Create a reminder. See the documentation

Create a new channel. See the documentation

List files shared in a channel or across the workspace. Accepts a channel ID or channel name (resolved automatically). Filter by file type (e.g. images, pdfs, snippets). Returns file metadata including name, type, size, and download URL. See the documentation

Archive a channel. See the documentation

Add an emoji reaction to a message. Accepts a channel ID or channel name (resolved automatically). Use Get Channel History or Search to find the message timestamp. Emoji name should be without colons (e.g. thumbsup, fire, heart). See the documentation

Add an emoji reaction to a message. See the documentation