Brex MCP Server

Item: Brex MCP Server
Rating: 58
Author: M8ven

Enables interaction with Brex financial data including expenses, budgets, transactions, and accounts through read-only API access with support for pagination, filtering, and receipt management.

→ dennisonbertram/mcp-brex · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 16 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: BREX_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies16 high12 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.7.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.7.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highaxios@1.6.7GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

highaxios@1.6.7GHSA-3g43-6gmg-66jw

axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge

highaxios@1.6.7GHSA-43fc-jf86-j433

Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretBREX_API_KEY— claude mcp add brex --env =your_brex_api_key -- npx mcp-brex

configBREX_API_URL

configLOG_LEVEL

configPORT

configRATE_LIMIT_REQUESTS

configRATE_LIMIT_WINDOW_MS

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/dennisonbertram-mcp-brex-sy98t6)](https://m8ven.ai/mcp/dennisonbertram-mcp-brex-sy98t6)

commit: e72a0f16e3cd6f07f111c9097ccb9eae5da44b79

code hash: 806378fdabd43785c5bf18b41e15dc8a0f02aa83968a7ea8c711543682da8a9b

verified: 7/7/2026, 10:05:03 AM

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