Slack
Integrates with Slack workspaces to enable channel management, messaging, thread interactions, react...
Create a Slack App
- Go to the Slack API Console.
- Click on “Create New App” and follow the prompts to name your app and select your workspace.
Add Bot Token Scopes
- In your Slack App settings, click on “OAuth & Permissions” in the left sidebar.
- Under “Bot Token Scopes,” add the following scopes:
channels:historychannels:readchat:writereactions:writeusers:readusers:read.email
Install the App to Your Workspace
- In the “OAuth & Permissions” section, click “Install App to Workspace.”
- Authorize the required permissions.
Copy the Bot User OAuth Token
- After installation, in the “OAuth & Permissions” section, find the “Bot User OAuth Token” (it will look like
xoxb-...). - Copy this token—this is your
SLACK_BOT_TOKEN.
- After installation, in the “OAuth & Permissions” section, find the “Bot User OAuth Token” (it will look like
Get Your Slack Team ID
- In Slack, click on your workspace name in the top-left, then “Administration” > “Workspace settings.”
- In the URL, you will see something like
https://app.slack.com/client/T12345678/.... The part beginning withT(e.g.,T12345678) is your Team ID. Save this ID asSLACK_TEAM_ID.
Add the ENV Values in FastMCP Connection
- In the FastMCP connection interface, click the "Install Now" button for the Slack integration.
- Fill in the following environment variables:
SLACK_BOT_TOKEN: Paste the Bot User OAuth Token you copied earlier.SLACK_TEAM_ID: Enter your Slack Team ID.
Your Slack integration is now configured and ready to use.
Quick Start
Choose Connection Type for
Authentication Required
Please sign in to use FastMCP hosted connections
Configure Environment Variables for
Please provide values for the following environment variables:
started!
The MCP server should open in . If it doesn't open automatically, please check that you have the application installed.
Copy and run this command in your terminal:
Make sure Gemini CLI is installed:
Visit Gemini CLI documentation for installation instructions.
Make sure Claude Code is installed:
Visit Claude Code documentation for installation instructions.
Installation Steps:
Configuration
Installation Failed
More for Communication
View All →
Slack
Experience the most powerful MCP server for Slack workspaces with advanced message and channel support. This feature-rich server allows fetching messages from channels, threads, DMs, and group DMs with embedded user info and smart history pagination by date or count. It supports enterprise workspaces, caching for faster access, and flexible transports like Stdio and SSE with proxy settings. Designed for stealth operation or secure access via OAuth, it integrates channel and thread lookups by name or ID to give rich, contextual Slack workspace data efficiently and reliably. Perfect for developers needing robust Slack data handling.
