Slack is maintained by aaronsb, which publishes 16 MCP servers (65 total versions) tracked on MCP Toplist.

Is Slack listed on the Official MCP Registry?

Yes — Slack is listed on the Official MCP Registry, alongside Glama.

How many versions does Slack have?

MCP Toplist tracks 2 versions of Slack, most recently published on Aug 20, 2026.

Where can I find the source code for Slack?

The source code for Slack is hosted at github.com/aaronsb/slack-mcp.

SERVER

Slack

Rank #5,164

io.github.aaronsb/slack-mcp

Read and write Slack with session tokens — no OAuth, no bot, no admin approval.

2 versions

2 GitHub stars

by aaronsb (16 servers)View repository ↗

First listed

Aug 18, 2026

Last publish date

Aug 20, 2026

OVERVIEW

Slack is a Model Context Protocol (MCP) server published by aaronsb. It ranks #5,164 of 115,460 servers tracked on MCP Toplist, and its repository has 2 GitHub stars. Slack is listed across 2 registries — Official MCP and Glama, with 2 tracked versions. It was first listed on Aug 18, 2026 and most recently updated on Aug 20, 2026.

STANDING

#5,164of 115,460 tracked serversTop 5%

Ranks ahead of 110,296 of 115,460 servers on MCP Toplist.

CONNECT

Use Slack

No setupRuns out of the box

No credentials or required configuration declared — add it to your MCP client and go.

npm package

claude mcp add slack-mcp -e "SLACK_MCP_XOXC_TOKEN=<your SLACK_MCP_XOXC_TOKEN>" -e "SLACK_MCP_XOXD_TOKEN=<your SLACK_MCP_XOXD_TOKEN>" -- npx -y @aaronsb/slack-mcp

Replace each placeholder with your own value before saving.

npm package

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

[mcp_servers.slack-mcp.env]
SLACK_MCP_XOXC_TOKEN = "<your SLACK_MCP_XOXC_TOKEN>"
SLACK_MCP_XOXD_TOKEN = "<your SLACK_MCP_XOXD_TOKEN>"

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

npm package

{
  "mcpServers": {
    "slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@aaronsb/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your SLACK_MCP_XOXC_TOKEN>",
        "SLACK_MCP_XOXD_TOKEN": "<your SLACK_MCP_XOXD_TOKEN>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@aaronsb/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your SLACK_MCP_XOXC_TOKEN>",
        "SLACK_MCP_XOXD_TOKEN": "<your SLACK_MCP_XOXD_TOKEN>"
      }
    }
  }
}

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

npm package

{
  "servers": {
    "slack-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@aaronsb/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your SLACK_MCP_XOXC_TOKEN>",
        "SLACK_MCP_XOXD_TOKEN": "<your SLACK_MCP_XOXD_TOKEN>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@aaronsb/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your SLACK_MCP_XOXC_TOKEN>",
        "SLACK_MCP_XOXD_TOKEN": "<your SLACK_MCP_XOXD_TOKEN>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "slack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@aaronsb/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your SLACK_MCP_XOXC_TOKEN>",
        "SLACK_MCP_XOXD_TOKEN": "<your SLACK_MCP_XOXD_TOKEN>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

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.aaronsb%2Fslack-mcp.svg)](https://mcptoplist.com/server/io.github.aaronsb%2Fslack-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.aaronsb%2Fslack-mcp"><img src="https://mcptoplist.com/badge/io.github.aaronsb%2Fslack-mcp.svg" alt="MCP Toplist: Top 5% of 115,460" /></a>

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

REGISTRIES

Listed on 2 registries

Official MCP

Glama

ORGANIZATION

aaronsb

Organization

aaronsb

Servers in org

Versions across org

Other servers by aaronsb

View all aaronsb servers →

VERSIONS

Available versions (2)

Version	Published
2.0.0	Aug 20, 2026
1.5.2	Aug 18, 2026

FAQ

Frequently asked questions

Who maintains Slack?: Slack is maintained by aaronsb, which publishes 16 MCP servers (65 total versions) tracked on MCP Toplist.
Is Slack listed on the Official MCP Registry?: Yes — Slack is listed on the Official MCP Registry, alongside Glama.
How many versions does Slack have?: MCP Toplist tracks 2 versions of Slack, most recently published on Aug 20, 2026.
Where can I find the source code for Slack?: The source code for Slack is hosted at github.com/aaronsb/slack-mcp.

EXPLORE

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