Slack

Name: Slack
Author: pulsemcp

by pulsemcpversion 0.0.7i★ –iRuns on your computer

Registry namecom.pulsemcp/slack

Install

Overview

Description from the maker (original English)

MCP server for Slack — read/write messages, manage threads, and react to messages.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Chat & email
You need to fill in: SLACK_BOT_TOKEN

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: SLACK_BOT_TOKEN, ENABLED_TOOLGROUPS

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "slack-workspace-mcp-server"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "your-value",
        "ENABLED_TOOLGROUPS": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add slack --env SLACK_BOT_TOKEN=your-value --env ENABLED_TOOLGROUPS=your-value -- npx -y slack-workspace-mcp-server

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "slack-workspace-mcp-server"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "your-value",
        "ENABLED_TOOLGROUPS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "slack": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "slack-workspace-mcp-server"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "your-value",
        "ENABLED_TOOLGROUPS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

SLACK_BOT_TOKEN secret required env
Slack Bot User OAuth Token starting with xoxb-.
ENABLED_TOOLGROUPS env
Comma-separated list of tool groups to enable (readonly, write).

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain pulsemcp.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1771 servers in this category
Published to the registry more recently than 12% of the other 1771 servers in this category
Basic checks equal to or better than 100% of the other 1771 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Slack safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: SLACK_BOT_TOKEN

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.0.7) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago

Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago

Install

MCP WhatsApp Cloud

by codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Slack MCP Server

A Model Context Protocol (MCP) server for integrating with Slack workspaces. This server provides tools for reading and writing messages, managing threads, and reacting to messages in Slack.

Features

List Channels - View all accessible public and private channels
Read Channel - Get channel info and recent messages
Read Threads - Get full threaded conversations
Post Messages - Send new messages to channels
Reply to Threads - Continue threaded conversations
Update Messages - Edit previously posted messages
React to Messages - Add emoji reactions to messages
Upload Snippets - Upload text content as file snippets (for long content that exceeds message limits)

Setup

Prerequisites

A Slack workspace with admin permissions to create apps
A Slack Bot Token (see instructions below)

Environment Variables

Variable	Required	Description	Default
`SLACK_BOT_TOKEN`	Yes	Slack Bot User OAuth Token	-
`ENABLED_TOOLGROUPS`	No	Comma-separated list of tool groups	All enabled

Getting a Bot Token

Go to api.slack.com/apps
Create a new app or select an existing one
Navigate to OAuth & Permissions
Add the following Bot Token Scopes:

channels:read - View basic channel information
channels:history - View messages in public channels
groups:read - View private channels
groups:history - View messages in private channels
chat:write - Send messages
reactions:write - Add reactions
files:write - Upload files and snippets

Install the app to your workspace
Copy the Bot User OAuth Token (starts with xoxb-)

Claude Desktop

Make sure you have your Slack Bot Token ready.

Then proceed to the setup instructions below. If this is your first time using MCP Servers, you'll want to make sure you have the Claude Desktop application and follow the official MCP setup instructions.

Manual Setup

You're going to need Node working on your machine so you can run npx commands in your terminal. If you don't have Node, you can install it from nodejs.org.

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

Windows: %APPDATA%\Claude\claude_desktop_config.json

Modify your claude_desktop_config.json file to add the following:

"mcpServers": { "slack": { "command": "npx", "args": ["-y", "slack-workspace-mcp-server"], "env": { "SLACK_BOT_TOKEN": "[PopNx MCP ตัดค่าที่หน้าตาเหมือนกุญแจออก]" } } } }

Restart Claude Desktop and you should be ready to go!

Available Tools

Read-Only Tools

Tool	Description
`slack_get_channels`	List all accessible channels
`slack_get_channel`	Get channel info with recent messages
`slack_get_thread`	Get a thread with all replies

Write Tools

Tool	Description
`slack_post_message`	Post a new message to a channel
`slack_reply_to_thread`	Reply to an existing thread
`slack_update_message`	Update a previously posted message
`slack_react_to_message`	Add an emoji reaction to a message
`slack_upload_snippet`	Upload text content as a file snippet to a channel

Tool Groups

You can control which tools are available using the ENABLED_TOOLGROUPS environment variable:

readonly - Only read operations (get channels, messages, threads)
write - All operations including posting and reactions

Example: ENABLED_TOOLGROUPS=readonly to disable all write operations.

Development

# Install dependencies

npm run install-all

Run in development mode

npm run dev

Run tests

npm test # Functional tests npm run test:integration # Integration tests npm run test:manual # Manual tests (requires real credentials)

Build

npm run build

License

MIT

Slack

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

Slack MCP Server

Features

Setup

Prerequisites

Environment Variables

Getting a Bot Token

Claude Desktop

Manual Setup

Available Tools

Read-Only Tools

Write Tools

Tool Groups

Development

Run in development mode

Run tests

Build

License