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GC AI is an AI platform for in-house legal teams. Lawyers use it to review contracts, research legal questions, draft documents, and answer requests from the business. Much of that business context lives in Slack. A sales lead asks about a contract term in a thread. Procurement flags a vendor issue in a channel. A teammate confirms a decision in a direct message. The GC AI Slack Connector lets you bring those conversations into your GC AI work, and send answers back, without copying and pasting between apps.

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How it works with Slack

  • You connect your own Slack account. GC AI acts as you. It can see only the channels, direct messages, and files you can already see in Slack.
  • You ask in GC AI, not in Slack. In a GC AI chat, ask something like “Summarize the #legal-requests thread about the Acme DPA.” GC AI searches and reads the Slack conversations it needs, then answers in the chat.
  • GC AI posts only when you ask, in a chat or in an automation you set up. If you ask GC AI to reply in a thread or post an update, by default it asks for your approval first and posts as you only after you select Approve.
  • There is no bot in your workspace. The connector does not respond to mentions or post anything on its own.
GC AI uses large language models to generate its answers. Like any AI, it can make mistakes, misread or leave out Slack messages, or produce answers that are inaccurate or incomplete. Check important answers against the original Slack messages, and read any message GC AI drafts before you approve it. GC AI does not replace your professional judgment.
You install the connector from inside GC AI, so you need a GC AI account first. If you don’t have one yet, visit gc.ai to get started. Read the GC AI Privacy Policy for how GC AI handles your data.

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Add GC AI to Slack

1

Sign in to GC AI

Go to app.gc.ai and sign in.
2

Open Agent Connectors

Select your profile, then Settings. Open Integrations → Agent Connectors.
Agent Connectors settings with Slack listed and a Connect button
3

Select Connect on Slack

Find Slack in the list and select Connect. Review what the connector does and the tools it adds, then select Connect Slack.
Connect Slack dialog with a description, the list of Slack tools, privacy details, and a Connect Slack button
4

Approve the app in Slack

Slack opens its install screen for the GC AI Slack Connector. Pick your workspace in the top right if you belong to more than one, review the permissions, and select Allow.
5

Start using Slack in chat

You return to GC AI and Slack shows Connected. Expand Tools under Slack to see each action GC AI can take and to set its permission.
You can also start from chat. If you ask about Slack before you connect, GC AI shows a connect card that opens the same install screen.
If your workspace requires admin approval for new apps, Slack shows Submit request instead of Allow. Your Slack admin approves the request in Slack. Then repeat these steps to finish connecting.
To connect another Slack workspace, select Connect on Slack again and pick the other workspace on the Slack install screen.

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Use Slack in GC AI chat

You use the connector from a GC AI chat, not from Slack. Ask in plain language and GC AI picks the right Slack action. With Slack connected, you can ask GC AI to:
  • Search messages and files across the channels and conversations you belong to
  • Read and summarize a channel, a direct message, or a thread
  • Look up a teammate by name or email
  • Send a message, reply in a thread, or schedule a message for later
  • Add a reaction to a message
Examples:
  • “Search Slack for what procurement said about the Acme indemnity cap.”
  • “Summarize the last week of #legal-requests and list the open asks.”
  • “Summarize the thread Sam started about the vendor DPA.”
  • “Post in #legal that the MSA redline is ready for review.”
  • “Reply in that thread that we approve the change to section 4.”
GC AI chat answering a request to brief the user on Slack messages that need a response

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When GC AI posts in Slack

GC AI posts in Slack only when you ask it to in a GC AI chat, or in an automation you set up. These are the actions that change something in Slack: Messages and reactions appear as you, because GC AI connects with your Slack account. By default, GC AI shows an approval card in chat first, and nothing posts until you select Approve. Select Always approve to skip the card for that action from then on, or Deny to stop it. You can change this per action under Configure the connector.
GC AI chat showing an approval card for Slack: Send message with Approve, Always approve, and Deny buttons
After you approve, GC AI sends the message and confirms in the chat.
GC AI chat confirming that a Slack direct message was sent
The connector has no bot. It does not respond to mentions, direct messages, or slash commands in Slack, and it never posts on its own.

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Configure the connector

Tool permissions (each member). In Settings → Integrations → Agent Connectors, expand Tools under Slack. Set each action to one of these: Organization policy (GC AI admins). In Settings → Policies → Connector policies, set Slack to Full access, Read-only, or Disabled for everyone or for specific members. Read-only turns off every action that posts in Slack. See Agent Connectors for details.

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Privacy and data

Read the GC AI Privacy Policy for how GC AI collects, uses, and stores your data. For Slack specifically:
  • GC AI reads Slack data only when you ask it to in a chat or an automation you set up. It does not copy or index your workspace in the background.
  • The Slack messages and files GC AI reads to answer you become part of that chat, and GC AI stores them with your chat history.
  • GC AI connects to Slack through Nango, which holds your Slack access token. See our subprocessor list.
  • When you disconnect, GC AI can no longer read from or post to your Slack workspace.

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Disconnect Slack

Open Settings → Integrations → Agent Connectors and select Disconnect on Slack. GC AI loses access right away. You can also remove the app in Slack, from Tools & settings → Manage apps.

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Get help

Email support@gc.ai with your workspace name and what you see.
Last modified on October 15, 2026