Slack MCP Server
Slack is a team communication tool that allows you to chat, share files, and collaborate with your team.
What is the Slack MCP Server?
The Slack MCP server gives AI agents structured, permission-aware access to Slack through the Model Context Protocol. With 8 pre-built actions, agents can read, create, and update Slack data on behalf of authorized users.
Willow ships the Slack MCP server as part of an enterprise control plane. Every call runs behind SSO (Okta, Azure AD), enforces RBAC and least-privilege at runtime, writes to a full audit trail, and integrates with Splunk and Loki for SIEM visibility. Connect from Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, n8n, or any custom agent. Install once, distribute org-wide, and see exactly how Slack is being used by every AI agent in your stack.
Tools
List Channels
Post Message
Get Channel History
Get Users
Find Channel Id
Search Messages
Find User ID by Email
Schedule Message.
Customize Tools
Edit descriptions, modify arguments, select tools, or add new ones
Edit descriptions
Change arguments
Select tools
Set Up Your Slack MCP Server in Minutes
Add the following configuration to your MCP client. Authentication is handled via OAuth. Compatible with Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, n8n, and any MCP-compatible agent.
Claude Desktop
{
"mcpServers": {
"willow-slack": {
"type": "http",
"url": "https://<org>.mcp-s.com/mcp/mcp/slack"
}
}
}Cursor
{
"mcpServers": {
"willow-slack": {
"type": "http",
"url": "https://<org>.mcp-s.com/mcp/mcp/slack"
}
}
}Claude Code
claude mcp add willow-slack --transport http https://<org>.mcp-s.com/mcp/mcp/slackn8n
{
"url": "https://<org>.mcp-s.com/mcp/mcp/slack",
"method": "POST"
}Or click "Install with Willow" above to set up automatically with SSO and RBAC preconfigured.
Enterprise Governance for Slack
Willow adds the layer Slack and every other SaaS doesn't ship out of the box: every call runs behind SSO (Okta, Azure AD), enforces RBAC and least-privilege at runtime, writes to full audit logs, and detects shadow AI usage across your stack. One MCP gateway. Any agent. Every tool.
Slack MCP Server FAQ
What is the Slack MCP server?
The Slack MCP server is a Model Context Protocol implementation that lets AI agents like Claude, Cursor, and ChatGPT read and write Slack data through a standardized interface. Willow hosts and governs this server so enterprises can roll it out without a security review backlog.
How is Willow's Slack MCP server different from the official one?
The official Slack MCP server is scoped to a single user's account and does not include enterprise governance. Willow's version adds SSO, RBAC, audit logging, shadow AI detection, and centralized control over which actions agents can take across the entire org.
Which AI clients work with the Slack MCP server?
Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code with MCP support, n8n, and any custom agent built with OpenAI Agents SDK, LangChain, Vercel AI SDK, or Anthropic SDK.
Is the Slack MCP server secure? How does Willow handle authentication?
Every call runs behind your existing SSO (Okta, Azure AD). Per-user OAuth scopes the agent to exactly what that user can do in Slack, nothing more. No credentials reach the LLM. Every action writes to an audit trail.
Can I limit which Slack actions agents can take?
Yes. Willow lets you scope agents to specific actions, specific projects, or specific environments. Toggle actions on or off in the dashboard, or enforce policy via infrastructure-as-code through GitHub.
How do I detect shadow Slack MCP servers in my org?
Willow's browser extension and discovery service surface unmanaged MCP servers, skills, and AI agents across the org. If a developer installed an unapproved Slack MCP locally, you'll see it.
What does the Slack MCP server cost?
Pricing depends on org size and deployment model (SaaS, dedicated cloud, self-host). See withwillow.ai/pricing or contact sales for a quote.
How do I install the Slack MCP server with Willow?
Install via the Willow Connect Panel in one click, or paste the JSON snippet above into your Claude Desktop, Cursor, or Claude Code config. SSO and RBAC inherit from your existing Willow setup.
Compare Willow MCP Gateway
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