# @cloud9-labs/mcp-slack

> Use this tool when you need to integrate Slack API functionality into your application, enabling features like messaging, channel management, and file uploads. It solves problems related to team collaboration, communication, and workflow automation by providing 14 tools for seamless Slack interaction. With inputs like message text and channel IDs, and outputs like sent messages and search results, this tool is ideal for building custom Slack integrations and automating tasks within the Slack ecosystem.

Canonical page: https://skillsregistry.net/skills/cloud9-labs-mcp-slack  
JSON: https://api.skillsregistry.net/v1/skills/cloud9-labs-mcp-slack

## Description

MCP server for Slack API integration with 14 tools for messaging and channel management, including sending messages, managing channels, searching messages, and file uploads.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/v1m2bspcs5)
- **Repository:** <https://github.com/cloud9-labs/mcp-slack>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "cloud9-labs-mcp-slack"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/cloud9-labs-mcp-slack` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/cloud9-labs-mcp-slack/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt