Can I ask Brex questions without writing queries?

Yes. Ask in Teams, Slack, the Nexatron web app, or an AI assistant connected through Nexatron's MCP server.

Does Nexatron respect Brex permissions?

Yes. Where Brex supports per-user sign-in, answers run under each person's own access.

Can Nexatron change data in Brex?

No. Asking a question never changes Brex data.

What do I need to connect Brex?

An administrator who can approve the connection. Our team sets it up with them during the pilot.

Is there a Brex MCP server for Claude, ChatGPT or Copilot?

Yes: Nexatron's hosted MCP server, once Brex is connected to your workspace. It is Nexatron's server, not one published by Brex, and the assistant gets the same governed answer as the Nexatron app.

Procurement, expenses & payments

Brex MCP server: ask questions, get governed answers

Brex is a corporate card and spend management platform that holds card transactions, expense reports, reimbursements and vendor payments.

AvailableStart a pilot All connectors

Try it on your own data in a pilot.

Brex AI analytics: what you can ask

Typical questions from finance and accounting. Each answer shows the definition, source and query behind it.

What was total card spend by department last month?
Which 10 merchants had the most spend this quarter?
Compare travel spend this quarter with last quarter
List transactions over $1,000 with no receipt attached
Break down expenses by category for this year

How Nexatron connects to Brex

Whose permissions: Your administrator approves the access the Brex connection uses. Where Brex supports per-user sign-in, answers run under each person's own access, and Nexatron roles decide who in your company can ask.
Read and write: Questions are read-only: asking never changes Brex data.
Setup: Our team sets up the Brex connection with your administrator during the pilot. No data migration and no pipeline to build: data is queried where it lives.

Brex MCP connector for Claude, ChatGPT and Copilot

Nexatron's hosted MCP server is a governed Brex MCP connector: Claude, ChatGPT and Microsoft Copilot ask questions of your Brex data through it. Each person signs in as themselves, so the assistant sees only what they may see.

Connect Brex to Claude, ChatGPT or Copilot

Connect Brex to your Nexatron workspace.
In Claude, add Nexatron from Claude's connector directory. In ChatGPT or Copilot, add a custom MCP connector with the server URL https://api.nexatron.io/api/v1/mcp.
Sign in with your own Nexatron identity (OAuth 2.1), then ask your Brex questions.

How the Nexatron MCP server works

Brex connector FAQ

Can I ask Brex questions without writing queries?: Yes. Ask in Teams, Slack, the Nexatron web app, or an AI assistant connected through Nexatron's MCP server.
Does Nexatron respect Brex permissions?: Yes. Where Brex supports per-user sign-in, answers run under each person's own access.
Can Nexatron change data in Brex?: No. Asking a question never changes Brex data.
What do I need to connect Brex?: An administrator who can approve the connection. Our team sets it up with them during the pilot.
Is there a Brex MCP server for Claude, ChatGPT or Copilot?: Yes: Nexatron's hosted MCP server, once Brex is connected to your workspace. It is Nexatron's server, not one published by Brex, and the assistant gets the same governed answer as the Nexatron app.

Try Nexatron on your own Brex data

A pilot starts with three questions your team already asks and the report you trust for each, so you can check the answers yourself.

Start a pilot

Brex is a trademark of its owner. Nexatron is not affiliated with or endorsed by it; the name and mark identify the system Nexatron connects to.