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How to use Slack with Copilot Studio

You want Slack inside Copilot Studio 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 Copilot Studio connects to, and it is where you decide which Slack tools an agent may use. You create it once and every client reuses it.

  1. Create an Arcade account

    Sign up and open the dashboard. The free tier is enough to follow this through.

  2. 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.

  3. Copy your gateway URL

    Every client below needs it.

    https://api.arcade.dev/mcp/<YOUR-GATEWAY-SLUG>

Create a Slack gateway Opens the gateway builder in your Arcade dashboard.

Connect the gateway to Copilot Studio

Heads up

Needs a Microsoft 365 subscription with access to Copilot Studio, plus an Arcade API key.

  1. Add an MCP tool to your agent

    In Copilot Studio, open your agent → Tools → Add a tool → Model Context Protocol → New tool.

  2. Point it at your gateway

    Give the server a name and description, put your gateway URL in Server URL, set Authentication to OAuth 2.0 and Type to Dynamic discovery.

  3. Authorize and try it out

    Saving redirects you to Arcade to approve access. Then start a conversation and use your Slack tools — Arcade authorizes each service just in time.

Full Copilot Studio guide in the docs steps verified 2026-08-13

Get started with these Slack prompts

Copilot Studio 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.

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