brex-automation

Brex Automation - Automate Brex Corporate Card Operations via Rube MCP

Skill Overview

Brex Automation is a Claude skill that automatically performs Brex corporate card and expense management tasks through Composio’s Rube MCP server. It enables finance teams to automate operations such as transaction inquiries and expense report generation.

Use Cases

Automated Export of Financial Data

Automatically retrieve Brex card transaction records and expense data on a regular basis, generate financial reports, and reduce manual lookup and entry work.

Bulk Management of Corporate Cards

Use Claude to batch-query transaction information and balance status for multiple corporate cards without logging into the Brex dashboard.

Expense Monitoring and Alerts

Monitor budget usage automatically, and trigger notifications when spending approaches or exceeds a configured threshold.

Core Features

Dynamic Tool Discovery

Automatically fetch the latest Brex tool schema via RUBE_SEARCH_TOOLS, ensuring the skill remains compatible with the current version of Composio’s Brex toolset and avoids hardcoded, outdated APIs.

Connection State Management

Use RUBE_MANAGE_CONNECTIONS to manage Brex account connections, check connection status in real time, and ensure accounts are properly authorized before running automation tasks.

Batch Tool Execution

Supports RUBE_MULTI_EXECUTE_TOOL to run multiple Brex operations within a single session—such as continuously querying transaction records for multiple cards—to improve batch processing efficiency.

Frequently Asked Questions

What is Rube MCP? How do I add it to Claude?

Rube MCP is an MCP server provided by Composio and can be used without registration. In Claude’s MCP configuration, add https://rube.app/mcp as the server address—no API key is required. After adding it, use RUBE_SEARCH_TOOLS to verify that the connection is successful.

What specific operations does Brex Automation support?

Supported operations depend on the current version of Composio’s Brex toolset. Typically, this includes: querying transaction records, retrieving account information, fetching card details, exporting expense data, and more. Before first use, call RUBE_SEARCH_TOOLS to obtain the full list of available tools and the latest input schemas.

How do I ensure Brex connection security?

Brex Automation uses Composio’s standard OAuth authentication flow. When connecting, please:

Complete authorization only through the official authentication link

Regularly check connection status (RUBE_MANAGE_CONNECTIONS)

Avoid hardcoding sensitive credentials in a session

Use Composio’s session management mechanisms to control access permissions