Slack MCP Server for Cursor 6 tools — connect in under 2 minutes
Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.
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{
"mcpServers": {
"slack": {
"url": "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.
Cursor's Agent mode turns Slack into an in-editor superpower. Ask Cursor to generate code using live data from Slack and it fetches, processes, and writes — all in a single agentic loop. 6 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.
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 Cursor 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 Cursor via MCP
Follow these steps to integrate the Slack MCP Server with Cursor.
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
Save the file
Cursor will automatically detect the new MCP server
Start using Slack
Open Agent mode in chat and ask: "Using Slack, help me..." — 6 tools available
Why Use Cursor with the Slack MCP Server
Cursor AI Code Editor provides unique advantages when paired with Slack through the Model Context Protocol.
Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context
Cursor's Composer feature can generate entire files using real-time data fetched through MCP — no copy-pasting from external dashboards
MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment
VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools
Slack + Cursor Use Cases
Practical scenarios where Cursor combined with the Slack MCP Server delivers measurable value.
Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP
Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically
Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates
Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data
Slack MCP Tools for Cursor (6)
These 6 tools become available when you connect Slack to Cursor 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 Cursor
Ready-to-use prompts you can give your Cursor 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 Cursor
Common issues when connecting Slack to Cursor through the Vinkius, and how to resolve them.
Tools not appearing in Cursor
Server shows as disconnected
Slack + Cursor FAQ
Common questions about integrating Slack MCP Server with Cursor.
What is Agent mode and why does it matter for MCP?
Where does Cursor store MCP configuration?
mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.Can Cursor use MCP tools in inline edits?
How do I verify MCP tools are loaded?
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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 Cursor
Get your token, paste the configuration, and start using 6 tools in under 2 minutes. No API key management needed.
