Slack MCP Server

Name: Slack MCP Server
Availability: InStock
Author: Kata Team

Post messages, read history, and look up users in a Slack workspace.

Software Development Documentation & Knowledge @katateam

Before you connect: what this server would do

A preview derived from this server’s definition — not a live run. Nothing runs and no key is sent until you connect. You run this server on your own machine — FindAgent never runs it.

Tools it can use (5)

slack_list_channels
List channels in the workspace.
slack_post_message
Post a message to a channel.
slack_reply_to_thread
Reply in a thread.
slack_get_channel_history
Read recent channel messages.
slack_get_users
List workspace users.

Credentials it will ask for (2)

Slack Bot User OAuth Token (xoxb-…)
Used with: slack.com
Slack Workspace/Team ID (T…)

What FindAgent checked

It passed an automated security scan and a human review before it was published here.
Your client talks to this server directly, so FindAgent’s run-time protections — the secret and prompt-injection scan on every result, the credential-to-host binding, the approval gates — do not apply to what you send or receive here.

How FindAgent keeps servers safe

Run locally

This MCP server runs on your own machine — FindAgent only points you at it. Run the command below, then add it to your MCP client. Nothing is hosted or proxied on our side.

terminal

npx -y @modelcontextprotocol/server-slack

Add it to your MCP client

Paste this into your client config (e.g. claude_desktop_config.json or a Cursor mcp.json), then restart the client.

mcp client config

{
  "mcpServers": {
    "slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

View the source repository

What you'll need — and where to get it

This agent will ask you for the following. You enter them when you connect — they're encrypted and never shared with the creator.

Slack Bot User OAuth Token (xoxb-…)
Create a Slack app (api.slack.com/apps), add the scopes the agent needs, install it to your workspace, and copy the bot/user token.
Paste the value as a single line.
Only sent to: slack.com
Slack Workspace/Team ID (T…)
Create a Slack app (api.slack.com/apps), add the scopes the agent needs, install it to your workspace, and copy the bot/user token.
Paste the value as a single line.