Your company brain, in Gemini Enterprise.

Q: Does it work with Gemini CLI?

Yes. Add Brainstack to ~/.gemini/settings.json as an mcpServers entry with "httpUrl" set to your brain's address, then run /mcp auth brainstack to sign in.

If your company runs on Google with Gemini Enterprise, your admin adds Brainstack once. From then on everyone asks Gemini about clients, tasks and projects, and gets answers with sources, within their role.

Connect Gemini to my brain See the steps

Gemini Enterprise
Set up once by your Google admin
Developers: Gemini CLI too

Sample data

Gemini EnterpriseMAMarta · Marketing

What are we running for Halcyon Foods this month?

Brainstack · Projects

Two things: the autumn menu launch, with the creative due Thursday, and the newsletter on the 28th. Their brand team asked for no discount codes this time.

Campaign planEmail, Oct 12

Connect Gemini Enterprise in five steps.

Short answer: yes, through Gemini Enterprise. Your Google admin allows custom MCP servers, adds Brainstack with your brain's address and sign-in details, and turns on its actions. Each person then signs in with Brainstack. The consumer Gemini app only allows custom apps on personal accounts in the US, so work accounts use Gemini Enterprise.

1
Copy the address and sign-in details
Gemini Enterprise asks for your brain's address and its OAuth details. All of them are in Brainstack, under team AI access.
2
Allow custom MCP servers
Custom MCP servers are off by default in Gemini Enterprise. Your admin allows them once in the organization policy.
This and the next two steps are for your Google admin. Everyone else only signs in.
Gemini Enterprise
Organization policies
Gemini Enterprise
Custom MCP server connectorAllowed for this organization
3
Add Brainstack as a data store
Create a new data store of type Custom MCP Server, paste the address and the OAuth details, and create it.
https://brain.example.com/mcp
4
Turn on its actions
Reload the custom actions and enable the ones your team should use. Actions that change something ask the person to confirm first.
Gemini Enterprise
Data stores › Brainstack › Actions
Actions
KnowledgeAsk the company brain
TasksSee and add tasks
ProjectsCheck project status
5
Everyone signs in and asks
The first time Gemini uses Brainstack, each person signs in with their own account. From then on it answers within their role.

Brainstack

Team AI accessBeta

Your brain's address. Paste it into any AI app that supports MCP.

https://brain.example.com/mcp

Example address. Yours is in your dashboard.

Client IDbrainstack-geminiAuthorization URLhttps://brain.example.com/oauth/authorizeToken URLhttps://brain.example.com/oauth/token

Gemini Enterprise

Organization policies

Gemini Enterprise

Custom MCP server connectorAllowed for this organization

Gemini Enterprise

New data store · Custom MCP ServerServer URLhttps://brain.example.com/mcpClient IDbrainstack-geminiAuthorization URLhttps://brain.example.com/oauth/authorize

CancelCreate

Gemini Enterprise

Data stores › Brainstack › Actions

Actions

KnowledgeAsk the company brain
TasksSee and add tasks
ProjectsCheck project status

Gemini EnterpriseMAMarta · Marketing

Which clients want their reports in Spanish?

Brainstack · Clients

Northwind, Halcyon Foods and Bluebird Co.

Client playbook

What your team can ask Gemini now.

Pick a question to see the answer. In beta, Gemini reaches knowledge, tasks and projects.

Gemini EnterpriseMAMarta · Marketing

What tone does Halcyon Foods want in its posts?

Brainstack · Clients

Warm and plain, no exclamation marks, and never a discount in the first line.

Brand guide

Same Gemini. Different answers.

Each person's Gemini answers with that person's access. Ask as Marta in Marketing, then as Sam in Product.

Gemini EnterpriseMAMarta · Marketing

What did we spend on Halcyon's ads in September?

Brainstack · Marketing

$6,240 across Meta and Google, 8% under budget.

Meta AdsGoogle Ads

Gemini and Brainstack, at a glance.

Where it works: Gemini Enterprise. Developers can also connect Gemini CLI.
Who sets it up: Your Google admin, once: allow custom MCP servers, add Brainstack as a data store and enable its actions.
Sign-in: OAuth with each person's Brainstack account. No API keys to share.
The Gemini app: The consumer Gemini app allows custom apps only on personal Google accounts in the US, not on work or school accounts.
What Gemini can reach: Knowledge, tasks and projects (beta), only in the spaces that person's role can open.
Where your data lives: The brain stays on your own server in the US or Europe. Google processes what Gemini receives under your Gemini Enterprise terms.

Questions, answered.

Does Gemini work with Brainstack?

Yes, through Gemini Enterprise, which can add remote MCP servers as data stores. Your admin adds Brainstack once, and each person's Gemini answers from your knowledge, tasks and projects, within their role.

Can we use the regular Gemini app?

Not for work accounts. The consumer Gemini app supports custom apps only for personal Google accounts in the US. For a company, Gemini Enterprise is the way in.

Does it work with Gemini CLI?

Yes. Add Brainstack to ~/.gemini/settings.json as an mcpServers entry with "httpUrl" set to your brain's address, then run /mcp auth brainstack to sign in.

Will Gemini see everything in our brain?

No. Each person signs in with their own Brainstack account, and Gemini sees only the spaces their role can open.

Who needs to be involved?

Your Google admin, for about ten minutes. After that, people only sign in.

What does it cost?

Team AI access comes with every Brainstack plan, from $99 a month. Your company keeps the Gemini plan it already pays for.

Gemini support checked on October 26, 2026.