Slk MCP — Communication skill for Claude Code

slk-mcp

[](https://github.com/velesnitski/slk-mcp/actions/workflows/test.yml) [](https://go.dev/) [](LICENSE) [](https://github.com/velesnitski/slk-mcp/releases) [](#tools) [](https://github.com/velesnitski/slk-mcp/stargazers)

Slack MCP server for [Claude Code](https://claude.com/claude-code), [GitHub Copilot](https://github.com/features/copilot), [Cursor](https://cursor.com), [JetBrains IDEs](https://www.jetbrains.com/help/idea/mcp.html), and any MCP-compatible client.

**What it does:** morning recaps across channels, smart unread summaries, mentions tracking, decision detection, message search, thread reading, and posting.

**Written in Go** — single ~10 MB binary, ~15 MB Docker image, no runtime, no zombie processes.

Quick start

1. Create a Slack App

Go to [api.slack.com/apps](https://api.slack.com/apps) → **Create New App** → **From scratch**. Pick **one** of the setups below depending on how you want slk-mcp to act.

Setup A — user token only (recommended for personal use)

Use this if you want slk-mcp to act as **you**: posts appear under your name, DMs and private channels work out of the box, full unread/mentions support. You don't need to invite anything to channels.

Under **OAuth & Permissions → User Token Scopes**, add:

• channels:history, channels:read
• groups:history, groups:read
• im:history, im:read, mpim:history, mpim:read
• users:read
• search:read
• chat:write (optional — for post_message)
• reactions:write (optional — for add_reaction)

**Install to Workspace**, copy the **User OAu