Slack MCP Server

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

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.

Credentials it will ask for (2)

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

What FindAgent checked

A FindAgent admin reviewed it before it was published here. No passing automated security scan is claimed for it.
You run this server yourself, so FindAgent’s run-time protections — the prompt-injection deny-list on what you send, the secret-leak 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 server signs you in with its own credentials. You give these to the server itself when it signs you in. They never pass through FindAgent, so we neither store them nor control where they go.

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.
Used with: 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.

Requirements

This server requires authentication — see the description for how to get a key.

Get this server

Connect this server over MCP — the full setup, client steps and any keys, is on the Setup tab.

View setup

What we can prove

Capability: This listing points at a server the provider runs — you connect to it directly with the provider's own sign-in.
Guaranteed: A person at FindAgent reviewed this listing before publishing it. There is no automated code scan — the server runs on the provider’s own infrastructure, so there is no FindAgent-side code to scan.

These are facts derived from the manifest, not a score and not a badge.

Server details

Local