# slack-mcp-claude-auth

> Use this tool when you need to integrate Slack with MCP without creating a custom Slack app, as it provides a local stdio MCP proxy with Claude's Slack plugin for authentication. It solves the problem of complex Slack app setup for MCP integration, enabling seamless communication between the two platforms. This tool accepts standard input and output, making it a convenient solution for developers seeking to authenticate Slack users via MCP.

Canonical page: https://skillsregistry.net/skills/kamilmodest-slack-mcp-claude-auth  
JSON: https://api.skillsregistry.net/v1/skills/kamilmodest-slack-mcp-claude-auth

## Description

Local stdio MCP proxy for the official Slack MCP endpoint, using Claude's Slack plugin for authentication to enable Slack integration via MCP without needing a custom Slack app.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/tmj9j5b768)
- **Repository:** <https://github.com/kamilmodest/slack-mcp-claude-auth>

## 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": "kamilmodest-slack-mcp-claude-auth"
    }
  }
}
```

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

---
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