Skip to main content

Slack as a tool

Add Slack as a tool when an agent needs to read or post in Slack as part of its work, for example to search messages, summarize a channel or send an update. The agent calls Slack through the Slack MCP server on your MCP Gateway, so every call is checked against your tool rules and guardrails and logged.

Add Slack​

Either:

  • On My agents, select Connect Slack, or
  • In the builder's Integrations step, select Add Slack.

Both open the MCP Library filtered to the Slack server.

  1. Select Continue setup (or install the server if it is not installed yet). If your Slack setup needs your own Slack OAuth app, follow Slack provider setup for the Client ID, Client Secret and user-token scopes.
  2. Connect your own Slack account when asked.
  3. Back in the builder, select Refresh on the Integrations step, choose the Slack Connection, and tick the tools the agent may call.

Read-only tools (such as searching messages or reading channels) are selected for you. Tools that change data, such as sending messages, are your call.

Whose Slack access is used​

Slack tools act with the Slack account of the person running the agent, through their own connection. Someone who has not connected Slack yet is asked to connect it before the tool can run. Choose which tools need confirmation in the MCP Gateway; those confirmations pause the run even when the agent is set to run tools without waiting.

On this page