SSyncDev

Brex MCP Server

Official

Ask your corporate card, expense, banking, and travel data questions in plain language — under your existing Brex permissions.

Remote serverstreamable-http

What is the Brex MCP Server?

Brex's official remote MCP server gives assistants permission-scoped access to expenses, cards, spend limits, banking, bills, travel, and accounting records.

Configuration and credentials

A Brex account with Developer API access enabled, an admin who has turned on Brex in AI assistants and accepted the Developer API agreement, and an MCP client supporting remote Streamable HTTP with OAuth.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

What you can do with it

Month-end receipt cleanup

Ask which of your expenses are missing receipts, then attach or annotate them without opening the dashboard.

Spend investigation

Answer questions like what engineering spent on SaaS last quarter, or which merchants drove a department over its limit, without exporting reports.

Cash and vendor review

Check account balances, look up bills and purchase orders, and review vendor activity while preparing a payables run.

Travel policy audit

Pull upcoming trips and bookings across the company and flag where they fall outside policy before the spend happens.

How to install the Brex MCP Server

claude mcp add --transport http brex https://api.brex.com/mcp

Configuration

A Brex account with Developer API access enabled, an admin who has turned on Brex in AI assistants and accepted the Developer API agreement, and an MCP client supporting remote Streamable HTTP with OAuth.

Example prompts to try

  • “What did the engineering team spend on SaaS last month, broken out by merchant?”
  • “Which of my expenses are missing receipts, and what is the oldest one?”
  • “Show me all unapproved reimbursements over $500 from the last 60 days.”
  • “What is my remaining balance on the travel and entertainment spend limit this period?”

Frequently asked questions

No. The server operates under the credentials you authenticate with and enforces the same role-based permissions configured in your Brex account. An individual employee sees their own expenses, cards, and limits; a card admin or account admin can ask company-wide questions. If a token is missing a scope, the tools that depend on it simply become unavailable rather than returning partial data.

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