Vinkius

Brex MCP for AI Agents. Manage Spending and Vendor Payments from Chat.

Brex MCP connects your AI client directly to your company's spending engine. You can provision new team members, issue limited virtual cards for SaaS tools, pull detailed transaction logs, and process vendor payments—all using natural chat.

Brex MCP is compatible with Claude Claude
Brex MCP is compatible with ChatGPT ChatGPT
Brex MCP is compatible with Cursor Cursor
Brex MCP is compatible with Gemini Gemini
Brex MCP is compatible with Windsurf Windsurf
Brex MCP is compatible with VS Code VS Code
Brex MCP is compatible with JetBrains JetBrains
Brex MCP is compatible with Vercel Vercel
See Vinkius in Action

Give Claude and any AI agent real-world access

Onboard New Employees

The MCP automatically creates user accounts in Brex and issues them digital corporate cards with specific spending caps.

Audit Spending History

You can pull massive amounts of raw transaction data, letting your agent analyze every card swipe or account charge over a chosen period.

Manage Vendor Payments

It handles the entire payable process: creating the vendor record and then sending out the actual payment funds.

Check Cash Reserves

The agent pulls your current main cash balance from Brex's primary accounts.

Waiting for input…

AI Agent
Brex

What AI agents can do with Brex MCP: 10 Tools for Financial Operations

These ten tools give your agent the ability to manage users, issue cards, create vendors, process payments, and audit every financial transaction within Brex.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using Brex MCP

Brex Create Card

This tool issues a dynamic virtual card, ideal for giving employees isolated spending capacity for SaaS subscriptions.

Brex Create User

Use this to invite and create new employee user accounts within the Brex system...

Brex Create Vendor

It allows you to establish a new external company record inside Accounts Payable...

Brex Get Balance

This function retrieves the current primary operational checking balance held by...

Brex List Budgets

It pulls a list of budget programs that have been assigned to various teams within...

Brex List Cards

This tool lists all virtual and physical cards currently issued across your entire organization.

Brex List Transactions

The agent can pull a comprehensive sweep of historical card and account transactions for detailed analysis.

Brex List Users

This tool retrieves a list of every user currently registered within your company's...

Brex List Vendors

It fetches and displays all saved vendor records that are already set up in the AP...

Brex Pay Vendor

Use this to initiate a payment, which orchestrates sending money out to an external...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Brex MCP is compatible with Claude

Claude AI

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

3

Start a conversation

Open a new chat. The Brex integration is available immediately — no restart needed.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

  • Import from OpenAPI, Swagger, or YAML specs
  • Create Agent Skills with progressive disclosure
  • Deploy to edge with MCPFusion framework
  • Built in DLP, auth, and compliance on each call
  • Real time usage dashboard and cost metering
  • Publish to catalog or keep private
Start building

Make Your AI Do More

Start with Brex, then connect any of our 5,200+ other servers whenever your AI needs more. One click, no limits.

  • Use this MCP plus 5,200+ others, all in one place
  • Add new capabilities to your AI anytime you want
  • Connections are secured and governed automatically
  • Track usage and costs across all your servers
  • Works with Claude, ChatGPT, Cursor, and more
  • New servers added to the catalog weekly
Brex MCP server cover

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Brex. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

VINKIUS INFRASTRUCTURE

Cloud Hosted

Managed infra

V8 Isolated

Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on each call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Finance requires a dozen clicks just to check on spending limits. Solved with Vinkius AI Gateway

Today, checking on corporate spend means jumping between the Brex dashboard, the user management panel, and the cash flow report. You click tabs, you filter dates, you copy IDs into a spreadsheet—all before you can even ask your question about how much spending capacity is available for a specific team.

With this MCP, that entire sequence vanishes. Your agent talks to Brex directly through natural language. You don't build reports; you simply ask: 'What's the spend limit for the marketing group?' and get an immediate answer.

The brex_pay_vendor tool automates payment cycles.

Before, paying a vendor meant manually creating them in AP, waiting for approval flows, and then logging into the payments module to initiate the wire. It was slow, required multiple logins, and left room for human error every single time.

Now you can tell your agent to 'Pay Acme Corp $1200.' The system handles the full cycle: it ensures the vendor record exists using `brex_create_vendor` if needed, and then executes the payment with `brex_pay_vendor`. It's that simple.

What your AI can actually do with this

This connector lets you manage corporate finances without ever leaving your chat window. Instead of logging into the Brex dashboard to check cash balances or run reports on last quarter's spending, you just ask your agent. It pulls highly contextualized raw data right into your workspace. Need to bring a new engineer onboard? You can automatically create their user profile and immediately spin up a virtual card with specific spending limits.

The system handles the provisioning and linking of that capacity. When you need to pay an external vendor, it manages the entire payment lifecycle—from creating the vendor record to initiating the funds transfer. Everything is secure because actions are governed by your existing Brex permissions. Through Vinkius, you get access to this robust suite of financial tools, allowing your AI client to act as a true operational co-pilot for finance and ops.

Built · Hosted · Managed by Vinkius Brex-MCP - Manage Spending and Vendor Payments
Server ID 019d7563-250c-701b-aa3e-d72552ea6226
Vinkius Inspector
Compliance Grade A+
Score 100/100
Vinkius Inspector Badge — Score 100/100

Questions you might have

How do I check my current cash balance using Brex MCP? +

You call the brex_get_balance tool. This function pulls your main operational checking account balance directly from Brex, giving you real-time visibility without needing to navigate any bank portals.

What is the best way to onboard a new employee with Brex MCP? +

You first call brex_create_user using their email and name. Then, immediately follow up by calling brex_create_card to issue them a virtual card with your desired spending limit.

Can I use Brex MCP to track old expenses? +

Yes. You run the brex_list_transactions tool. This sweeps all historical transaction data, letting you pull and analyze raw records from past card activity or account charges.

Does brex_pay_vendor handle payments for new vendors? +

It can. If the vendor isn't set up yet, you must first call brex_create_vendor. Once that record is established, calling brex_pay_vendor will process the payment.

How do I see who is currently on my team via Brex MCP? +

Run the brex_list_users tool. It returns a comprehensive list of every user account connected to your company's Brex profile, helping you manage permissions.