How to use Slack with Cursor
You want Slack inside Cursor so it can triage a busy Slack workspace, prepare follow-ups from unanswered threads, coordinate the right people, and send a targeted team update — without you copy-pasting between tabs. Here is the whole setup, once.
Create your Slack gateway
The gateway is the thing Cursor connects to, and it is where you decide which Slack tools an agent may use. You create it once and every client reuses it.
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Create an Arcade account
Sign up and open the dashboard. The free tier is enough to follow this through.
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Create an MCP Gateway and select your Slack tools
In the dashboard, create a gateway and pick the Slack tools you want to expose. The gateway is what your client connects to, and it is where tool access is decided.
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Copy your gateway URL
Every client below needs it.
https://api.arcade.dev/mcp/<YOUR-GATEWAY-SLUG>
Connect the gateway to Cursor
Cursor does not refresh MCP OAuth tokens automatically. For a persistent connection, set Authorization to “Arcade Headers” on the gateway in the dashboard.
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Open MCP settings
Command Palette (⌘⇧P / Ctrl+Shift+P) → Open MCP Settings, then click “New MCP Server”.
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Add the gateway to mcpServers
{ "mcpServers": { "mcp-arcade": { "url": "https://api.arcade.dev/mcp/<YOUR-GATEWAY-SLUG>" } } } -
Try it out
Ask Cursor to use one of your Slack tools.
Full Cursor guide in the docs steps verified 2026-08-13
Get started with these Slack prompts
Cursor can now act on your Slack account. Click a prompt to copy it.
A mistaken invite or message can reach the wrong people. Pair Slack with Contextual Access policies to require approval before invites or messages, and limit the conversations an agent can access.