Slack
Unclaimed verified 15 sept 2026TL;DR
Slack is the industry-standard channel-based messaging platform designed to centralize team communication and file sharing. It targets organizations of all sizes, from startups to global enterprises, and differentiates itself through its massive third-party app ecosystem and highly intuitive, developer-friendly interface.
What Users Actually Pay
No user-reported pricing yet.
Our Take
Slack maintains its position as the premium choice for internal business communication, though it faces stiff competition from Microsoft Teams, particularly in organizations already committed to the Office 365 suite. Its primary strength lies in its 'culture-first' design, which feels more collaborative and less corporate than its rivals, and its superior search functionality that makes retrieving historical data effortless. For developers and technical teams, Slack is nearly peerless due to its robust API and the ease with which custom bots and workflows can be deployed. However, the platform's pricing remains a significant hurdle; as an independent cost center outside of a broader productivity suite, it is often seen as expensive for large-scale deployments. The recent acquisition by Salesforce has integrated it deeper into the CRM ecosystem, but some users have noted a trend toward increased 'bloat' and more frequent UI changes that can disrupt established workflows. The introduction of Slack AI in 2024-2025 has been a double-edged sword: while features like channel recaps and thread summaries provide immense value for managing information overload, they have also sparked privacy concerns regarding how user data is utilized for model training. Despite these tensions, Slack remains the gold standard for high-growth tech companies where speed of communication and integration depth are prioritized over cost savings. Ultimately, Slack is best suited for tech-forward companies that rely heavily on a stack of diverse software tools (like Jira, GitHub, and Zoom) and need a central 'operating system' to tie those tools together through real-time notifications and automated actions.
Alternatives
Ranked by Revuo score — paid tiers never affect order.
Pros
- + Unrivaled integration ecosystem with over 2,500 apps in the Slack App Directory.
- + Superior search capabilities allowing users to find messages, files, and links across years of history instantly.
- + Highly customizable notification settings that allow for granular control over 'Do Not Disturb' periods and channel-specific alerts.
- + Exceptionally clean and responsive UI/UX across desktop, web, and mobile platforms.
- + Powerful 'Connect' feature that enables secure, multi-organization collaboration within shared channels.
Cons
- - High per-user pricing, which can become cost-prohibitive for large enterprises compared to bundled alternatives.
- - The 90-day message history limit on the free tier is highly restrictive for growing teams.
- - Persistent 'notification fatigue' and the platform's tendency to encourage an always-on work culture.
- - Recent API rate limit changes (2025) for message history have made it more difficult for custom LLM integrations to scrape data.
- - Storage management and file organization can become cluttered in workspaces with thousands of active members.
Agent Readiness
84/100Slack is arguably the most agent-ready messaging platform on the market. Its Events API and Socket Mode allow AI agents to respond to workspace activity in near real-time without needing a public endpoint. While recent 2025 rate limit changes have throttled bulk history reading for non-marketplace apps (aimed at limiting DIY LLM training), the platform's 'Bolt' SDK and Block Kit UI builder provide a world-class framework for building interactive, autonomous agents that can manage entire business workflows within the chat interface.
Last checked Jul 14, 2026
MCP Integrations
24 servers65 tools14,396 total usesRead Slack conversations, threads, and user directories, send messages, and invite users to channels.
11 tools
Arcade_ListAppsSee the apps the current caller can act on and whether they are connected. Returns each app's id, name, connected state, and (when connected) the account it is connected as. Call this to answer "what apps do I have?" or when the caller's connection state may have changed since the session started.Slack_GetConversationMetadataGet metadata of a Channel, a Direct Message (IM / DM) or a Multi-Person (MPIM) conversation. Use this tool to retrieve metadata about a conversation with a conversation_id, a channel name, or by the user_id(s), username(s), and/or email(s) of the user(s) in the conversation. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails.Slack_GetMessagesGet messages in a Slack Channel, DM (direct message) or MPIM (multi-person) conversation. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the conversation to the latest_datetime. To filter messages by a relative datetime, use 'oldest_relative' and/or 'latest_relative' with numeric `DD:HH:MM` offsets only. Convert relative phrases to `DD:HH:MM` before calling this tool. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all arguments with the default None to get messages without date/time filteringSlack_GetThreadMessagesGet messages in a Slack thread. A thread is a collection of messages grouped together as replies to a parent message. This tool retrieves all messages in a specific thread, identified by the parent message's timestamp (thread_ts). Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the thread to the latest_datetime. To filter messages by a relative datetime, use 'oldest_relative' and/or 'latest_relative' with numeric `DD:HH:MM` offsets only. Convert relative phrases to `DD:HH:MM` before calling this tool. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all datetime arguments with the default None to get all thread messages without date/time filtering.Slack_GetUsersInConversationGet the users in a Slack conversation (Channel, DM/IM, or MPIM) by its ID or by channel name. Provide exactly one of conversation_id or channel_name. Prefer providing a conversation_id, when available, since the performance is better.Slack_GetUsersInfoGet the information of one or more users in Slack by ID, username, and/or email. Provide any combination of user_ids, usernames, and/or emails. If you need to retrieve data about multiple users, DO NOT CALL THE TOOL MULTIPLE TIMES. Instead, call it once with all the user_ids, usernames, and/or emails. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` or `Slack.GetMessages` tool instead. These tools accept user_ids, usernames, and/or emails. Do not retrieve users' info first, as it is inefficient.Slack_InviteUsersToChannelInvite users to a Slack channel or MPIM (multi-person direct message). This tool invites specified users to join a Slack conversation. It works with: - Public channels - Private channels - MPIMs (multi-person direct messages / group DMs) You can specify users by their user IDs, usernames, or email addresses. Provide exactly one of channel_id or channel_name, and at least one of user_ids, usernames, or emails. The tool will resolve usernames and emails to user IDs before inviting them. Up to 100 users may be invited at once.Slack_ListConversationsList metadata for Slack conversations (channels, DMs, MPIMs) the user is a member of. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead.Slack_ListUsersList all users in the authenticated user's Slack team. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` tool or `Slack.GetMessages` tool instead. These tools accept a user_id, username, and/or email. Do not use this tool to first retrieve user(s), as it is inefficient.Slack_SendMessageSend a message to a Channel, Direct Message (IM/DM), or Multi-Person (MPIM) conversation. Can send top-level messages or reply to an existing thread. Provide exactly one of: - channel_name; or - conversation_id; or - any combination of user_ids, usernames, and/or emails. In case multiple user_ids, usernames, and/or emails are provided, the tool will open a multi-person conversation with the specified people and send the message to it. To reply to a thread, also provide thread_ts (the 'ts' field of the parent message). Optionally set reply_broadcast to true to also post the reply to the main conversation.Slack_WhoAmIGet comprehensive user profile and Slack information. This tool provides detailed information about the authenticated user including their name, email, profile picture, and other important profile details from Slack services.
MCP server for Slack Web API — send messages, manage channels, search content, and automate your workspace. ## Features - Send, update, delete, and schedule messages with Block Kit support - Manage channels: create, archive, invite/kick members, set topics - Search messages and files with Slack's powerful query syntax - Upload and manage files with 2-step upload process - React to messages, pin items, and manage bookmarks - Browse users, team info, and custom emoji ## 38 Tools **Messages (7)**: send, update, delete, schedule, cancel scheduled, list scheduled, get permalink **Conversations (12)**: list channels, info, history, thread replies, members, create, archive, invite, kick, join, set topic, open DM **Users (2)**: list all, get info **Reactions (3)**: add, remove, get reactions **Search (2)**: search messages, search files **Files (3)**: upload, list, delete **Pins (3)**: pin, unpin, list pins **Bookmarks (4)**: add, edit, remove, list **Tea
38 tools
slack_send_messageSend a message to a Slack channel, DM, or thread. Supports Block Kit for rich formatting. Always provide "text" as notification fallback even when using "blocks". Rate limit: 1 message/sec/channel.slack_update_messageUpdate an existing message. Bot can only update messages it posted. Provide new text and/or blocks.slack_delete_messageDelete a message. Bot can only delete messages it posted.slack_schedule_messageSchedule a message for future delivery. Max 120 days in the future. Max 30 scheduled messages per channel per 5 minutes.slack_delete_scheduled_messageDelete a pending scheduled message before it is sent. Cannot delete messages posting within 60 seconds.slack_list_scheduled_messagesList pending scheduled messages. Optionally filter by channel or time range.slack_get_permalinkGet a permanent URL for a specific message.slack_list_channelsList channels in the workspace. Filter by type: public_channel, private_channel, im, mpim.slack_get_channel_infoGet detailed information about a channel including topic, purpose, member count.slack_get_channel_historyGet message history from a channel. Returns messages in reverse chronological order. Free plan: 90-day history limit.slack_get_thread_repliesGet replies in a message thread. Returns the parent message and all replies.slack_get_channel_membersList all members of a channel. Returns user IDs with cursor-based pagination.slack_create_channelCreate a new public or private channel. Name must be lowercase, numbers, hyphens, underscores (max 80 chars).slack_archive_channelArchive a channel. Archived channels can be unarchived later.slack_invite_to_channelInvite one or more users to a channel. Supports up to 1000 user IDs.slack_kick_from_channelRemove a user from a channel.slack_join_channelJoin a public channel. Bot must have channels:join scope.slack_set_channel_topicSet or update the topic of a channel.slack_open_conversationOpen a DM or multi-person DM. Pass 1 user ID for DM, 2-8 for group DM.slack_list_usersList all users in the workspace including deactivated users. Supports cursor-based pagination.slack_get_user_infoGet detailed information about a user including profile, status, admin flags.slack_add_reactionAdd an emoji reaction to a message. Use emoji name without colons (e.g. "thumbsup" not ":thumbsup:").slack_remove_reactionRemove an emoji reaction from a message.slack_get_reactionsGet all reactions for a specific message, including emoji names, counts, and user IDs.slack_search_messagesSearch for messages matching a query. Supports modifiers: in:#channel, from:@user, has:reaction, before:date, after:date. Free plan: 90-day history limit.slack_search_filesSearch for files matching a query. Supports same modifiers as message search.slack_upload_fileUpload a text file to Slack. Uses the 2-step upload process (getUploadURLExternal + completeUploadExternal). For text/code content only.slack_list_filesList files in the workspace. Filter by channel, user, or type. Free plan: files older than 90 days are deleted.slack_delete_fileDelete a file from the workspace.slack_pin_messagePin a message to a channel. Cannot pin channel join messages or files.slack_unpin_messageUnpin a message from a channel.slack_list_pinsList all pinned items in a channel.slack_add_bookmarkAdd a bookmark (link) to a channel. Max 100 bookmarks per channel.slack_edit_bookmarkUpdate an existing bookmark in a channel.slack_remove_bookmarkRemove a bookmark from a channel.slack_list_bookmarksList all bookmarks in a channel.slack_get_team_infoGet information about the workspace/team: name, domain, icon, etc.slack_list_emojiList all custom emoji in the workspace. Returns emoji name-to-URL mapping. Aliases use "alias:emoji_name" format.
Send messages, access channels, and manage files in your Slack workspace.
Manage channels, conversations, users, and workspace apps programmatically
Needs a self-provisionable API key
MCP server for Slack — read/write messages, manage threads, and react to messages.
JSON-driven E2E test runner with parallel Chrome pool execution and 16 MCP tools.
Secure read-only MCP server for Slack workspaces
Unlock full Slack access for your AI—DMs, private channels, threads, and search history. No OAuth apps or admin approval required. Session mirroring gives your AI the same access you already have.
10 tools
slack_token_statusCheck token health, age, and auto-refresh statusslack_health_checkCheck if Slack API connection is working and show workspace infoslack_list_conversationsList all DMs and channels with user names resolvedslack_conversations_historyGet messages from a channel or DM with user names resolvedslack_get_full_conversationExport full conversation history with all messages, threads, and user namesslack_search_messagesSearch messages across the Slack workspaceslack_send_messageSend a message to a channel or DMslack_get_threadGet all replies in a message threadslack_users_infoGet detailed information about a Slack userslack_list_usersList all users in the workspace with pagination support
Slack MCP Pack
Read and reply to your personal Telegram chats and all your Slack workspaces.
Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages
Needs a self-provisionable API key
Lifts WxO Slack limits: every-message wake-up, multi-channel MCP. https://markusvankempen.github.io/
Needs a self-provisionable API key
Full read + write access to Slack Lists for AI: create, update, check off, reassign, delete.
Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.
Florida Real Estate API — agent verification, property data, market trends, comps, lead tools.
Read and write Slack with session tokens — no OAuth, no bot, no admin approval.
MCP server specialized in retrieving information from Slack messages and threads
75 MCP tools: SEC financials, FRED economics, IRS 990, FDA, FX, UK Companies House.
Slack Enterprise MCP Server by MEOK AI Labs
Needs a self-provisionable API key
Enable interaction with Slack workspaces. Supports subscribing to Slack events through Resources.
Automate your Slack workspace interactions by posting messages, replying to threads, adding reactions, and fetching channel or user information. Streamline Slack communication and management with easy-to-use tools accessible via the Model Context Protocol. Enhance productivity by integrating Slack API capabilities directly into your workflows.
9 tools
channels_list_on_slackList public channels in the workspace with paginationsend_message_on_slackPost a new message to a Slack channel. Provide either channel_id or channel_name.reply_to_thread_on_slackReply to a specific message thread in Slack. Provide either channel_id or channel_name.get_channel_history_on_slackGet recent messages from a channel. Provide either channel_id or channel_name.get_thread_replies_on_slackGet all replies in a message thread. Provide either channel_id or channel_name.get_users_on_slackGet a list of all users in the workspace with their basic profile informationget_user_profile_on_slackGet detailed profile information for a specific userget_channel_messages_on_slackFetch the last N messages from a Slack channel (by channel_id or channel_name).get_mentions_on_slackFetch recent messages where the bot/user is mentioned (optionally by channel).
Slackbot automates responses and reminders within Slack, assisting with tasks like onboarding, FAQs, and notifications to streamline team productivity
11 tools
Arcade_ListAppsSee the apps the current caller can act on and whether they are connected. Returns each app's id, name, connected state, and (when connected) the account it is connected as. Call this to answer "what apps do I have?" or when the caller's connection state may have changed since the session started.Slack_GetConversationMetadataGet metadata of a Channel, a Direct Message (IM / DM) or a Multi-Person (MPIM) conversation. Use this tool to retrieve metadata about a conversation with a conversation_id, a channel name, or by the user_id(s), username(s), and/or email(s) of the user(s) in the conversation. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails.Slack_GetMessagesGet messages in a Slack Channel, DM (direct message) or MPIM (multi-person) conversation. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the conversation to the latest_datetime. To filter messages by a relative datetime, use 'oldest_relative' and/or 'latest_relative' with numeric `DD:HH:MM` offsets only. Convert relative phrases to `DD:HH:MM` before calling this tool. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all arguments with the default None to get messages without date/time filteringSlack_GetThreadMessagesGet messages in a Slack thread. A thread is a collection of messages grouped together as replies to a parent message. This tool retrieves all messages in a specific thread, identified by the parent message's timestamp (thread_ts). Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the thread to the latest_datetime. To filter messages by a relative datetime, use 'oldest_relative' and/or 'latest_relative' with numeric `DD:HH:MM` offsets only. Convert relative phrases to `DD:HH:MM` before calling this tool. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all datetime arguments with the default None to get all thread messages without date/time filtering.Slack_GetUsersInConversationGet the users in a Slack conversation (Channel, DM/IM, or MPIM) by its ID or by channel name. Provide exactly one of conversation_id or channel_name. Prefer providing a conversation_id, when available, since the performance is better.Slack_GetUsersInfoGet the information of one or more users in Slack by ID, username, and/or email. Provide any combination of user_ids, usernames, and/or emails. If you need to retrieve data about multiple users, DO NOT CALL THE TOOL MULTIPLE TIMES. Instead, call it once with all the user_ids, usernames, and/or emails. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` or `Slack.GetMessages` tool instead. These tools accept user_ids, usernames, and/or emails. Do not retrieve users' info first, as it is inefficient.Slack_InviteUsersToChannelInvite users to a Slack channel or MPIM (multi-person direct message). This tool invites specified users to join a Slack conversation. It works with: - Public channels - Private channels - MPIMs (multi-person direct messages / group DMs) You can specify users by their user IDs, usernames, or email addresses. Provide exactly one of channel_id or channel_name, and at least one of user_ids, usernames, or emails. The tool will resolve usernames and emails to user IDs before inviting them. Up to 100 users may be invited at once.Slack_ListConversationsList metadata for Slack conversations (channels, DMs, MPIMs) the user is a member of. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead.Slack_ListUsersList all users in the authenticated user's Slack team. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` tool or `Slack.GetMessages` tool instead. These tools accept a user_id, username, and/or email. Do not use this tool to first retrieve user(s), as it is inefficient.Slack_SendMessageSend a message to a Channel, Direct Message (IM/DM), or Multi-Person (MPIM) conversation. Can send top-level messages or reply to an existing thread. Provide exactly one of: - channel_name; or - conversation_id; or - any combination of user_ids, usernames, and/or emails. In case multiple user_ids, usernames, and/or emails are provided, the tool will open a multi-person conversation with the specified people and send the message to it. To reply to a thread, also provide thread_ts (the 'ts' field of the parent message). Optionally set reply_broadcast to true to also post the reply to the main conversation.Slack_WhoAmIGet comprehensive user profile and Slack information. This tool provides detailed information about the authenticated user including their name, email, profile picture, and other important profile details from Slack services.
Needs a self-provisionable API key
Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…
Read Slack conversations, threads, user info, and search messages from your MCP client.
Last checked Aug 26, 2026
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