communication MCP Server
Multi-workspace Slack MCP server for Claude Code. xoxc/xoxp/xoxb auth, draft+confirm on writes, vault auto-export, prompt-injection scrubber, audit log. 18 tools.
Discovered via github-topic:model-context-protocol and last synced 1w ago.
1. Add to claude_desktop_config.json
{
"mcpServers": {
"slack-mcp": {
"command": "uvx",
"args": [
"--from",
"git+https://github.com/karbassi/slack-mcp.git",
"slack-mcp"
]
}
}
}Config file location: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) / %APPDATA%\Claude\claude_desktop_config.json (Windows)
`xoxp-...`
`xoxb-...`
Anthropic connector
n/a
Active
When to use
List channels or get detailed info
Retrieve messages from channels
Advanced message search with filters
Get conversation thread replies
List workspace users or get specific profiles
Tools
Create, edit items, manage access, my assigned items, templates, records
Slash commands, file editing, bot listing
Manifests, connections, authorizations, activities
Before
Required
**Yes**
No
Upload, share, edit, list, remote files, shares, recently deleted, favorites
Send, reply, schedule, update, delete, ephemeral, stream
Start, end, manage participants
Drafts, saved items, emoji management, granular search, sidebar, threads, activity inbox, DMs, AI unread summary + digests, Today view, Connect invites
Create, edit, sections, access control, templates
History, threads, replies, create, archive, invite, mark read, team connections, suggestions
Featured workflows, step completion, workflow/trigger listing
No
`xoxc-...` + `xoxd-...` cookie
## Install Open Claude Code, paste: /plugin marketplace add adelaidasofia/slack-mcp /plugin install slack-mcp@slack-mcp Then fill in tokens in `.env` (see SETUP.md for cookie extraction walkthrough). <details> <summary>Legacy install</summary> ```bash git clone https://github.com/adelaidasofia/slack-mcp.git ~/.claude/slack-mcp cd ~/.claude/slack-mcp pip3 install --break-system-packages -r requirements.txt cp .env.example .env # fill in tokens — see SETUP.md for cookie extraction walkthrough ``` Register in your project `.mcp.json` (or via `claude mcp add -s user`): ```json { "mcpServers": { "slack": { "command": "python3", "args": ["-m", "slack_mcp.server"], "cwd": "/Users/YOU/.claude/slack-mcp" } } } ``` Restart Claude Code, then run `claude mcp list` to verify `slack` shows up. </details> ## Tools (v0.1.1) **Meta:** `list_workspaces`, `healthcheck` **Read:** `list_channels`, `search_channels`, `read_channel`, `read_thread`, `list_users`, `search_users`, `get_user_profile`, `search_messages` **Write (draft+confirm):** `send_message` → `confirm_send`, `send_reply_quote` → `confirm_send`, `update_own_message` → `confirm_send`, `cancel_draft` **Write (low-consequence, immediate):** `add_reaction`, `mark_read`, `delete_own_message` ## Auth modes
Send messages and upload files to Slack channels using the `slack` CLI. Supports direct messages, channel posts, file uploads, and thread replies.
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🔬 A curated collection of 23,000+ agent skills for empirical research across 8 social science disciplines. | 精选 23,000+ AI Agent 技能库，覆盖8大社会科学学科的实证研究。CoPaper.AI 20分钟完成一篇可复现的规范实证论文，并支持用户上传 Skills。-- Maintained by CoPaper.AI from Stanford REAP.
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