SERVER

Slack MCP Server

Rank #1,561

io.github.jtalk22/slack-mcp-server

Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.

21 versions

32 GitHub stars

by jtalk22 (2 servers)View repository ↗

First listed

Jan 4, 2026

Last publish date

Oct 7, 2026

PURPOSE

What you can do with Slack MCP Server

Slack MCP Server is a Model Context Protocol (MCP) server published by jtalk22. It ranks #1,561 of 144,396 active servers on MCP Toplist, and its repository has 32 GitHub stars. Slack MCP Server is listed across 5 registries — Official MCP, PulseMCP, Smithery, Glama and mcp.so, with 21 tracked versions. It was first listed on Jan 4, 2026 and most recently updated on Oct 7, 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 MCP Server 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 MCP Server

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

MCP Toplist probed the public endpoint on Oct 5, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.

Declared by Glama, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

SLACK_TOKEN · optional
SLACK_COOKIE · optional

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect Slack MCP Server and confirm it works

Remote · HTTP

claude mcp add --transport http slack-mcp-server https://mcp.revasserlabs.com/oauth/mcp

npm package

claude mcp add slack-mcp-server -e "SLACK_TOKEN=<your SLACK_TOKEN>" -e "SLACK_COOKIE=<your SLACK_COOKIE>" -- npx -y @jtalk22/slack-mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.slack-mcp-server]
url = "https://mcp.revasserlabs.com/oauth/mcp"

Add to ~/.codex/config.toml.

npm package

[mcp_servers.slack-mcp-server]
command = "npx"
args = ["-y", "@jtalk22/slack-mcp"]

[mcp_servers.slack-mcp-server.env]
SLACK_TOKEN = "<your SLACK_TOKEN>"
SLACK_COOKIE = "<your SLACK_COOKIE>"

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

Remote · HTTP

https://mcp.revasserlabs.com/oauth/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

npm package

{
  "mcpServers": {
    "slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "<your SLACK_TOKEN>",
        "SLACK_COOKIE": "<your SLACK_COOKIE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "slack-mcp-server": {
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

npm package

{
  "mcpServers": {
    "slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "<your SLACK_TOKEN>",
        "SLACK_COOKIE": "<your SLACK_COOKIE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "servers": {
    "slack-mcp-server": {
      "type": "http",
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

npm package

{
  "servers": {
    "slack-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "<your SLACK_TOKEN>",
        "SLACK_COOKIE": "<your SLACK_COOKIE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "slack-mcp-server": {
      "serverUrl": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

npm package

{
  "mcpServers": {
    "slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "<your SLACK_TOKEN>",
        "SLACK_COOKIE": "<your SLACK_COOKIE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "slack-mcp-server": {
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

npm package

{
  "mcpServers": {
    "slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_TOKEN": "<your SLACK_TOKEN>",
        "SLACK_COOKIE": "<your SLACK_COOKIE>"
      }
    }
  }
}

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.

ALTERNATIVES

When to choose another server

Other servers by jtalk22

Asana MCP Server#29,695

View all jtalk22 servers →

No task-specific alternatives are catalogued for Slack MCP Serveryet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Jan 4, 2026
Latest version published: Oct 7, 2026
Version history: 21 versions tracked (below)
Requirements evidence: MCP Toplist probed the public endpoint on Oct 5, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 16, 2026

Registry sightings

Official MCP ↗listed since Apr 25, 2026 · still listed
PulseMCP ↗listed since Jun 4, 2026 · still listed
Smithery ↗listed since Jun 4, 2026 · still listed
Glama ↗listed since Jun 12, 2026 · still listed
mcp.so ↗listed since Aug 26, 2026 · still listed

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

VERSIONS

Available versions (21)

Version	Published
5.1.0	Oct 7, 2026
5.0.0	Aug 24, 2026
4.9.0	Aug 13, 2026
4.8.0	Aug 7, 2026
4.7.0	Aug 7, 2026
4.6.2	Aug 5, 2026
4.6.1	Aug 4, 2026
4.6.0	Jul 21, 2026
4.5.0	Jul 21, 2026
4.4.3	Jul 3, 2026
4.4.2	Jul 2, 2026
4.4.1	Jul 2, 2026
4.4.0	Jul 2, 2026
3.2.5	Mar 12, 2026
3.2.4	Mar 11, 2026
3.2.0	Mar 10, 2026
3.1.0	Mar 10, 2026
3.0.0	Feb 28, 2026
2.0.0	Feb 26, 2026
1.1.8	Jan 9, 2026
0.1.0	Nov 25, 2024

STANDING

#1,561of 144,396 active serversTop 5%

Ranks ahead of 142,835 of 144,396 servers on MCP Toplist.

Recent momentum

+10GitHub stars since Apr 27 (+45%)

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.jtalk22%2Fslack-mcp-server.svg)](https://mcptoplist.com/server/io.github.jtalk22%2Fslack-mcp-server)

HTML

<a href="https://mcptoplist.com/server/io.github.jtalk22%2Fslack-mcp-server"><img src="https://mcptoplist.com/badge/io.github.jtalk22%2Fslack-mcp-server.svg" alt="MCP Toplist: Top 5% of 144,396" /></a>

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

FAQ

Frequently asked questions

Who maintains Slack MCP Server?: Slack MCP Server is maintained by jtalk22, which publishes 2 MCP servers (23 total versions) tracked on MCP Toplist.
Is Slack MCP Server listed on the Official MCP Registry?: Yes — Slack MCP Server is listed on the Official MCP Registry, alongside PulseMCP, Smithery, Glama and mcp.so.
How many versions does Slack MCP Server have?: MCP Toplist tracks 21 versions of Slack MCP Server, most recently published on Oct 7, 2026.
Where can I find the source code for Slack MCP Server?: The source code for Slack MCP Server is hosted at github.com/jtalk22/slack-mcp-server.

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