SERVER

Slack

Rank #41,347

io.github.mindstone/mcp-server-slack

Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages

6 versions

13 GitHub stars

by mindstone (43 servers)View repository ↗

First listed

May 21, 2026

Last publish date

Aug 6, 2026

PURPOSE

What you can do with Slack

Slack is a Model Context Protocol (MCP) server published by mindstone. It ranks #41,347 of 144,396 active servers on MCP Toplist, and its repository has 13 GitHub stars. Slack is listed on Official MCP, with 6 tracked versions. It was first listed on May 21, 2026 and most recently updated on Aug 6, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Slack can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Slack

DeclaredAPI keyCredentials declared

The registry listing declares required configuration before first use — typically an API key, token or connection string set via environment variables.

Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

SLACK_CONFIG_PATH · required
SLACK_TEAM_ID · required
SLACK_CLIENT_ID · optional
SLACK_CLIENT_SECRET · optional
SLACK_DISABLE_REFRESH · optional
SLACK_REQUEST_TIMEOUT_MS · optional
SLACK_MAX_RETRIES · optional
MCP_WORKSPACE_PATH · optional

INSTALLATION AND FIRST TASK

Connect Slack and confirm it works

npm package

claude mcp add mcp-server-slack -e "SLACK_CONFIG_PATH=<your SLACK_CONFIG_PATH>" -e "SLACK_TEAM_ID=<your SLACK_TEAM_ID>" -e "SLACK_CLIENT_ID=<your SLACK_CLIENT_ID>" -e "SLACK_CLIENT_SECRET=<your SLACK_CLIENT_SECRET>" -e "SLACK_DISABLE_REFRESH=<your SLACK_DISABLE_REFRESH>" -e "SLACK_REQUEST_TIMEOUT_MS=<your SLACK_REQUEST_TIMEOUT_MS>" -e "SLACK_MAX_RETRIES=<your SLACK_MAX_RETRIES>" -e "MCP_WORKSPACE_PATH=<your MCP_WORKSPACE_PATH>" -- npx -y @mindstone/mcp-server-slack

Replace each placeholder with your own value before saving.

npm package

[mcp_servers.mcp-server-slack]
command = "npx"
args = ["-y", "@mindstone/mcp-server-slack"]

[mcp_servers.mcp-server-slack.env]
SLACK_CONFIG_PATH = "<your SLACK_CONFIG_PATH>"
SLACK_TEAM_ID = "<your SLACK_TEAM_ID>"
SLACK_CLIENT_ID = "<your SLACK_CLIENT_ID>"
SLACK_CLIENT_SECRET = "<your SLACK_CLIENT_SECRET>"
SLACK_DISABLE_REFRESH = "<your SLACK_DISABLE_REFRESH>"
SLACK_REQUEST_TIMEOUT_MS = "<your SLACK_REQUEST_TIMEOUT_MS>"
SLACK_MAX_RETRIES = "<your SLACK_MAX_RETRIES>"
MCP_WORKSPACE_PATH = "<your MCP_WORKSPACE_PATH>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "mcp-server-slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "<your SLACK_CONFIG_PATH>",
        "SLACK_TEAM_ID": "<your SLACK_TEAM_ID>",
        "SLACK_CLIENT_ID": "<your SLACK_CLIENT_ID>",
        "SLACK_CLIENT_SECRET": "<your SLACK_CLIENT_SECRET>",
        "SLACK_DISABLE_REFRESH": "<your SLACK_DISABLE_REFRESH>",
        "SLACK_REQUEST_TIMEOUT_MS": "<your SLACK_REQUEST_TIMEOUT_MS>",
        "SLACK_MAX_RETRIES": "<your SLACK_MAX_RETRIES>",
        "MCP_WORKSPACE_PATH": "<your MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "mcp-server-slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "<your SLACK_CONFIG_PATH>",
        "SLACK_TEAM_ID": "<your SLACK_TEAM_ID>",
        "SLACK_CLIENT_ID": "<your SLACK_CLIENT_ID>",
        "SLACK_CLIENT_SECRET": "<your SLACK_CLIENT_SECRET>",
        "SLACK_DISABLE_REFRESH": "<your SLACK_DISABLE_REFRESH>",
        "SLACK_REQUEST_TIMEOUT_MS": "<your SLACK_REQUEST_TIMEOUT_MS>",
        "SLACK_MAX_RETRIES": "<your SLACK_MAX_RETRIES>",
        "MCP_WORKSPACE_PATH": "<your MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "mcp-server-slack": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "<your SLACK_CONFIG_PATH>",
        "SLACK_TEAM_ID": "<your SLACK_TEAM_ID>",
        "SLACK_CLIENT_ID": "<your SLACK_CLIENT_ID>",
        "SLACK_CLIENT_SECRET": "<your SLACK_CLIENT_SECRET>",
        "SLACK_DISABLE_REFRESH": "<your SLACK_DISABLE_REFRESH>",
        "SLACK_REQUEST_TIMEOUT_MS": "<your SLACK_REQUEST_TIMEOUT_MS>",
        "SLACK_MAX_RETRIES": "<your SLACK_MAX_RETRIES>",
        "MCP_WORKSPACE_PATH": "<your MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "mcp-server-slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "<your SLACK_CONFIG_PATH>",
        "SLACK_TEAM_ID": "<your SLACK_TEAM_ID>",
        "SLACK_CLIENT_ID": "<your SLACK_CLIENT_ID>",
        "SLACK_CLIENT_SECRET": "<your SLACK_CLIENT_SECRET>",
        "SLACK_DISABLE_REFRESH": "<your SLACK_DISABLE_REFRESH>",
        "SLACK_REQUEST_TIMEOUT_MS": "<your SLACK_REQUEST_TIMEOUT_MS>",
        "SLACK_MAX_RETRIES": "<your SLACK_MAX_RETRIES>",
        "MCP_WORKSPACE_PATH": "<your MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "mcp-server-slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "<your SLACK_CONFIG_PATH>",
        "SLACK_TEAM_ID": "<your SLACK_TEAM_ID>",
        "SLACK_CLIENT_ID": "<your SLACK_CLIENT_ID>",
        "SLACK_CLIENT_SECRET": "<your SLACK_CLIENT_SECRET>",
        "SLACK_DISABLE_REFRESH": "<your SLACK_DISABLE_REFRESH>",
        "SLACK_REQUEST_TIMEOUT_MS": "<your SLACK_REQUEST_TIMEOUT_MS>",
        "SLACK_MAX_RETRIES": "<your SLACK_MAX_RETRIES>",
        "MCP_WORKSPACE_PATH": "<your MCP_WORKSPACE_PATH>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: May 21, 2026
Latest version published: Aug 6, 2026
Version history: 6 versions tracked (below)
Requirements evidence: Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Aug 6, 2026

Registry sightings

Official MCP ↗listed since May 21, 2026 · still listed

Do you maintain Slack? to correct or enrich this profile.

VERSIONS

Available versions (6)

Version	Published
0.3.0	Aug 6, 2026
0.2.0	Jul 30, 2026
0.1.6	Jun 12, 2026
0.1.5	Jun 12, 2026
0.1.4	Jun 10, 2026
0.1.3	May 21, 2026

STANDING

#41,347of 144,396 active serversTop 50%

Ranks ahead of 103,049 of 144,396 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.mindstone%2Fmcp-server-slack.svg)](https://mcptoplist.com/server/io.github.mindstone%2Fmcp-server-slack)

HTML

<a href="https://mcptoplist.com/server/io.github.mindstone%2Fmcp-server-slack"><img src="https://mcptoplist.com/badge/io.github.mindstone%2Fmcp-server-slack.svg" alt="MCP Toplist: Top 50% of 144,396" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains Slack?: Slack is maintained by mindstone, which publishes 43 MCP servers (150 total versions) tracked on MCP Toplist.
Is Slack listed on the Official MCP Registry?: Yes — Slack is listed on the Official MCP Registry.
How many versions does Slack have?: MCP Toplist tracks 6 versions of Slack, most recently published on Aug 6, 2026.
Where can I find the source code for Slack?: The source code for Slack is hosted at github.com/mindstone/mcp-servers.

Used in projects

Do you run this server?

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EXPLORE

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