ChatGPT

Connect Giga to ChatGPT with a custom MCP app and keep Giga's company context, permissions, and Connections available from ChatGPT.

Use Giga from ChatGPT when you want to work in ChatGPT while keeping Giga's permission-aware company context and connected tools underneath.

Giga is not yet listed in ChatGPT's public app directory, so the current setup uses a custom MCP app.

Before you start

ChatGPT controls who can create and use custom MCP apps. Full MCP support, including write actions, is currently available on ChatGPT Business and Enterprise/Edu on the web. Pro users can connect MCPs with read/fetch permissions in Developer Mode. If you do not see the settings below, your plan or workspace permissions may not support custom MCP apps yet.

Connect Giga to ChatGPT

Enable Developer Mode

In ChatGPT, open Settings → Apps → Advanced Settings and turn on Developer Mode if it is available to your account.

Workspace admins can also start from Workspace settings → Apps → Create.

Create a custom app

Open Settings → Apps → Create or Workspace settings → Apps → Create, depending on your workspace role.

Name the app Giga.

Add Giga's MCP endpoint

Enter the Giga remote MCP endpoint:

https://app.getgiga.com/mcp

Use OAuth for authentication.

Scan Giga's tools

Select Scan Tools and wait for ChatGPT to discover the tools exposed by Giga.

ChatGPT will open Giga's normal OAuth flow. Sign in to Giga if prompted, approve access, then return to ChatGPT.

Create and use Giga

Select Create when the scan finishes.

Start a new Chat, open the tools/apps menu, and select Giga when you want ChatGPT to use current company context or take an action through Giga.

Screenshot guide

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ChatGPT Settings showing Apps → Advanced Settings → Developer Mode.

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The Create app screen with the name Giga and the Giga MCP endpoint entered.

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ChatGPT after Scan Tools, followed by Giga's OAuth sign-in and authorization flow.

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A ChatGPT Chat with Giga selected from the apps/tools menu.

What carries through from Giga

Connecting Giga to ChatGPT changes the interface around the work. Giga still resolves the current user's permitted workspace context and capabilities.

Depending on the task and current permissions, that can include:

Groups
Tracks and Track memory
Connections
Agents
Skills
files and other permitted company context

Giga's Company Brain remains permission-aware. Using Giga from ChatGPT does not widen access to company information or Connections.

Using Giga in a Chat

When a request needs fresh company data or an action through Giga, select or mention Giga for that message.

For example:

"Use Giga to catch me up on the Acme rollout."
"Use Giga to find the latest account context before my renewal call."
"Use Giga to check the connected CRM and summarize what changed."

A Chat can link to at most one Track, and the Track should be explicitly selected or confirmed.

Saving to Giga's memory

Say "save this" or "remember that". Giga shows a card asking which Track it belongs to, with Keep it private as an option, then saves the specific points you want kept, never the whole conversation. Anything kept private waits in Brain → To file in the Giga web app until you file it.

Learn how memory works from ChatGPT and Claude →

If you do not see Create

ChatGPT's custom MCP controls depend on your plan and workspace role.

For the latest ChatGPT requirements, see OpenAI's guide to Developer Mode and MCP apps.

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