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CommunicationOAuth2Official MCPScore: 78Verified by owner

Slack API MCP Server

Send messages, manage channels, and integrate Slack notifications into your AI agent workflows.

Quick Answer

  1. 1. The Slack API MCP server lets Claude, Cursor, and VS Code interact with the Slack API API through natural language.
  2. 2. Setup: Add the config to claude_desktop_config.json, set your OAuth2 variables, and restart.
  3. 3. 3 operations available including List all channels, Send a message, List all users.
  4. 4. Quality score: 78/99 — good source quality and documentation coverage.

Overview

Category: Communication

Auth: OAuth2

Endpoints: 3

Transport: STDIO

Command: npx -y @modelcontextprotocol/server-slack

Spec: v2.0.0

Setup time: ~2 min (auth required)

Environment Variables

SLACK_BOT_TOKEN

Example: xoxb-...

One-Click Install

Copy the snippet for your MCP client and paste it in — zero editing required.

Claude Desktop

Add to claude_desktop_config.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-..."
      }
    }
  }
}
Deep link

Cursor

Settings → MCP Servers → Add

{
  "mcpServers": {
    "slack": {
      "url": "https://mcpbridge.org/config/slack.json"
    }
  }
}

Saves as .cursor/mcp.json in the download. Move it to your project root.

Deep link install →

VS Code

Use with MCP extension

{
  "mcpServers": {
    "slack": {
      "url": "https://mcpbridge.org/config/slack.json"
    }
  }
}

MCP Server Configuration

Add this to your claude_desktop_config.json or Cursor MCP settings.

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y","@modelcontextprotocol/server-slack"],
      "env": {
      "SLACK_BOT_TOKEN": "xoxb-..."
}
    }
  }
}

What You Can Build

With the Slack API MCP server, your AI assistant can:

  • Access 3 API operations through natural language
  • Read, create, and modify communication resources without writing HTTP requests
  • Chain multiple operations in a single conversation for complex workflows
  • Combine with other MCP servers for cross-tool automation

Endpoints

GET/conversations.list

List all channels

POST/chat.postMessage

Send a message

GET/users.list

List all users

Documentation →GitHub →

Authentication

This API requires OAuth2 authentication.

Set the required environment variables in your MCP client before using this server. Refer to the Slack API API documentation to obtain credentials.

Required environment variables:

  • SLACK_BOT_TOKEN

Spec Version

Version: 2.0.0

Spec version published with the OpenAPI document. Config auto-updates when the spec changes.

Page last updated: June 13, 2026

Quality Score

78/99Good
  • +Official source (+30)
  • +Has documentation (+12)
  • +GitHub repo (+12)
  • +Auth type defined (+8)
  • +OpenAPI spec available (+8)
  • +3 endpoints (+8)

Build with Slack API

Get everything you need in one bundle: MCP config, cursor rules, and framework integration for Slack API.

View Slack Bot Stack→

Read the Guide

Step-by-step walkthrough for setting up and using the Slack API MCP server.

Slack APIMCP Setup Guide →

This listing is verified by the API owner.

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