Slack MCP Server for Claude Code 6 tools — connect in under 2 minutes
Claude Code is Anthropic's agentic CLI for terminal-first development. Add Slack as an MCP server in one command and Claude Code will discover every tool at runtime — ideal for automation pipelines, CI/CD integration, and headless workflows via the Vinkius.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
Vinkius Desktop App
The modern way to manage MCP Servers — no config files, no terminal commands. Install Slack and 2,500+ MCP Servers from a single visual interface.
# Your Vinkius token — get it at cloud.vinkius.com
claude mcp add slack --transport http "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Slack MCP Server
Transform your team communication into an AI-powered workflow with Slack, the world's leading workplace messaging platform. Your agent becomes a direct participant in your Slack workspace — sending messages, searching across channels, and reacting to conversations without you ever switching tabs.
Claude Code registers Slack as an MCP server in a single terminal command. Once connected, Claude Code discovers all 6 tools at runtime and can call them headlessly — ideal for CI/CD pipelines, cron jobs, and automated workflows where Slack data drives decisions without human intervention.
What you can do
- Send Messages — Post messages to any channel or DM, including threaded replies, using Slack's rich mrkdwn formatting.
- Search Conversations — Find messages across your entire workspace by keyword, sender, or channel using powerful search modifiers.
- Browse Channels — List all available channels with their topics, purposes, and member counts to understand your workspace structure.
- Read Channel History — Retrieve recent messages from any channel to catch up on conversations or audit activity.
- Manage Users — List workspace members with their roles, emails, statuses, and timezones.
- React to Messages — Add emoji reactions to specific messages for quick acknowledgments.
The Slack MCP Server exposes 6 tools through the Vinkius. Connect it to Claude Code in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Slack to Claude Code via MCP
Follow these steps to integrate the Slack MCP Server with Claude Code.
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
Add the MCP Server
Run the command above in your terminal
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
Start using Slack
Ask Claude: "Using Slack, show me..." — 6 tools are ready
Why Use Claude Code with the Slack MCP Server
Claude Code provides unique advantages when paired with Slack through the Model Context Protocol.
Single-command setup: `claude mcp add` registers the server instantly — no config files to edit or applications to restart
Terminal-native workflow means MCP tools integrate seamlessly into shell scripts, CI/CD pipelines, and automated DevOps tasks
Claude Code runs headlessly, enabling unattended batch processing using Slack tools in cron jobs or deployment scripts
Built by the same team that created the MCP protocol, ensuring first-class compatibility and the fastest adoption of new protocol features
Slack + Claude Code Use Cases
Practical scenarios where Claude Code combined with the Slack MCP Server delivers measurable value.
CI/CD integration: embed Slack tool calls in your deployment pipeline to validate configurations or fetch secrets before shipping
Headless batch processing: schedule Claude Code to query Slack nightly and generate reports without human intervention
Shell scripting: pipe Slack outputs into other CLI tools for data transformation, filtering, and aggregation
Infrastructure monitoring: run Claude Code in a cron job to query Slack status endpoints and alert on anomalies
Slack MCP Tools for Claude Code (6)
These 6 tools become available when you connect Slack to Claude Code via MCP:
channels_history
Requires the channel ID (use channels_list to find it). Returns messages in reverse chronological order. Get recent messages from a Slack channel
channels_list
Returns public and private channels the bot has access to. Channel IDs are needed for sending messages or reading history. List Slack channels in the workspace
messages_search
Searches message content, usernames, and channels. Results are sorted by most recent first. Search for messages across the Slack workspace
messages_send
Requires the channel ID. Use channels_list to find available channels. Optionally specify thread_ts to reply in a thread. Send a message to a Slack channel or DM
reactions_add
Requires the channel ID and the exact message timestamp (ts). Use channels_history to find message timestamps. Add a reaction emoji to a Slack message
users_list
Returns user IDs, names, emails, and status. User IDs are needed for sending DMs or identifying message authors. List users in the Slack workspace
Example Prompts for Slack in Claude Code
Ready-to-use prompts you can give your Claude Code agent to start working with Slack immediately.
"List all channels in my Slack workspace."
"Post a message in #engineering: 'Deploy v2.4.1 is live on production 🚀'"
"Search for messages about 'API outage' from last week."
Troubleshooting Slack MCP Server with Claude Code
Common issues when connecting Slack to Claude Code through the Vinkius, and how to resolve them.
Command not found: claude
npm install -g @anthropic-ai/claude-codeConnection timeout
Slack + Claude Code FAQ
Common questions about integrating Slack MCP Server with Claude Code.
How do I add an MCP server to Claude Code?
claude mcp add --transport http "" in your terminal. Claude Code registers the server and discovers all tools immediately.Can Claude Code run MCP tools in headless mode?
How do I list all connected MCP servers?
claude mcp in your terminal to see all registered servers and their status, or type /mcp inside an active Claude Code session.Connect Slack with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Slack to Claude Code
Get your token, paste the configuration, and start using 6 tools in under 2 minutes. No API key management needed.