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Slack MCP Server

Name: Slack
Availability: InStock
Author: Vinkius

slack.com

Built by Vinkius GDPR ToolsFree for Subscribers

Automate Slack messaging — send messages, search conversations, list channels and users directly from any AI agent.

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What is the Slack MCP Server?

The Slack MCP Server gives AI agents like Claude, ChatGPT, and Cursor direct access to Slack via 6 tools. Automate Slack messaging — send messages, search conversations, list channels and users directly from any AI agent. Powered by the Vinkius - no API keys, no infrastructure, connect in under 2 minutes.

Built-in capabilities (6)

channels_historychannels_listmessages_searchmessages_sendreactions_addusers_list

Tools for your AI Agents to operate Slack

Ask your AI agent "List all channels in my Slack workspace." and get the answer without opening a single dashboard. With 6 tools connected to real Slack data, your agents reason over live information, cross-reference it with other MCP servers, and deliver insights you would spend hours assembling manually.

Works with Claude, ChatGPT, Cursor, and any MCP-compatible client. Powered by the Vinkius - your credentials never touch the AI model, every request is auditable. Connect in under two minutes.

Why teams choose Vinkius

One subscription gives you access to thousands of MCP servers - and you can deploy your own to the Vinkius Edge. Your AI agents only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure and security, zero maintenance.

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…and any MCP-compatible client

Slack MCP Server capabilities

6 tools

channels_history

Requires the channel ID (use channels_list to find it). Returns messages in reverse chronological order. Get recent messages from a Slack channel

channels_list

Returns public and private channels the bot has access to. Channel IDs are needed for sending messages or reading history. List Slack channels in the workspace

messages_search

Searches message content, usernames, and channels. Results are sorted by most recent first. Search for messages across the Slack workspace

messages_send

Requires the channel ID. Use channels_list to find available channels. Optionally specify thread_ts to reply in a thread. Send a message to a Slack channel or DM

reactions_add

Requires the channel ID and the exact message timestamp (ts). Use channels_history to find message timestamps. Add a reaction emoji to a Slack message

users_list

Returns user IDs, names, emails, and status. User IDs are needed for sending DMs or identifying message authors. List users in the Slack workspace

What the Slack MCP Server unlocks

Transform your team communication into an AI-powered workflow with Slack, the world's leading workplace messaging platform. Your agent becomes a direct participant in your Slack workspace — sending messages, searching across channels, and reacting to conversations without you ever switching tabs.

What you can do

Send Messages — Post messages to any channel or DM, including threaded replies, using Slack's rich mrkdwn formatting.
Search Conversations — Find messages across your entire workspace by keyword, sender, or channel using powerful search modifiers.
Browse Channels — List all available channels with their topics, purposes, and member counts to understand your workspace structure.
Read Channel History — Retrieve recent messages from any channel to catch up on conversations or audit activity.
Manage Users — List workspace members with their roles, emails, statuses, and timezones.
React to Messages — Add emoji reactions to specific messages for quick acknowledgments.

How it works

1. Subscribe to this server
2. Enter your Slack Bot Token (from api.slack.com/apps → OAuth & Permissions)
3. Start managing your Slack workspace from Claude, Cursor, or any MCP-compatible client

Who is this for?

Team Leads — broadcast updates, search for past decisions, and monitor channel activity without leaving your AI workflow.
Developers — get notified, post deployment updates, and search for error reports across your engineering channels.
Operations Managers — audit communication patterns, find specific discussions, and coordinate across multiple channels effortlessly.

Frequently asked questions about the Slack MCP Server

How do I get started with Slack MCP?

Subscribe, then create a Slack App at api.slack.com/apps → Create New App. Go to OAuth & Permissions, add the required bot scopes (channels:read, chat:write, search:read, users:read), install the app to your workspace, and paste the Bot User OAuth Token (starts with xoxb-) here. No code, no webhooks — just connect and go.

Can my AI agent send messages and reply in threads?

Yes. Your agent can post to any channel the bot has been invited to — including threaded replies. Just say 'post in #engineering that the deploy is complete' or 'reply in the thread about the bug fix'. It supports Slack's full mrkdwn formatting including bold, links, code blocks, and mentions.

How can I find a specific conversation from last week?

Tell your agent to search for it — 'find messages about the Q3 budget review' or 'search for messages from @sarah about the client proposal'. The agent uses Slack's search API with support for modifiers like from:user, in:channel, and date ranges. No more scrolling through channels — your agent retrieves the exact messages you need.

Can I manage multiple channels and monitor team activity?

Absolutely. List all channels to get an overview of your workspace structure, read history from specific channels to audit conversations, and check team member profiles, statuses, and timezones. Perfect for distributed teams, engineering organizations, and operations managers who need a bird's-eye view of communication across dozens of channels.