How to Use the Brex MCP in Claude Code

Q: Can I use Claude Code to automate Brex vendor payments in a CI/CD pipeline?

Yes, you can trigger Claude Code headlessly to run brexpayvendor as part of your deployment scripts. It checks your balance using brexgetbalance before sending any money.

Q: How does Claude Code handle high-volume Brex transaction data?

Claude Code uses brexlisttransactions to fetch raw transaction data, which you can pipe directly to local Unix utilities like grep or jq. This makes it easy to filter large financial datasets without leaving the command line.

Pipes Brex financial data, virtual card creation, and vendor payments directly into Claude Code for headless terminal automation.

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Connect Brex MCP to Claude Code

Create your Vinkius account to connect Brex to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Brex with Claude Code

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Script Brex Card Creation in Claude Code

The `brex_create_card` tool generates virtual corporate cards directly from your terminal session. You can pipe a list of SaaS vendors from a local text file into Claude Code, and it will spin up dedicated cards for each one. The agent then runs `brex_list_cards` to output the new card IDs and limits into a JSON file. This lets you automate subscription provisioning without ever opening a web browser.

Audit Corporate Cash via the Brex MCP Server

The `brex_get_balance` tool fetches your current cash balances directly to your shell. You can run Claude Code in a cron job to check your accounts daily and alert your team if funds drop below a threshold. It can also run `brex_list_transactions` to pull recent transaction logs and pipe them into local analysis tools. This lets you build fast, terminal-only financial auditing workflows.

Onboard Employees and Teams via CLI

The `brex_create_user` tool invites new employees to your Brex account using simple terminal commands. When a new team member is added to your git repository, Claude Code can read the commit and trigger their Brex invite. It then calls `brex_list_users` to verify the user state and maps them to their respective budget programs. This keeps your team directory and financial access perfectly synced.

Setup guide

Set up Brex MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see brex-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Brex transactions." It will automatically discover and invoke the available Brex tools.

Terminal

claude mcp add --transport http brex-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Get your connection token →

Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the Brex MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "brex-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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.

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Common questions about Brex MCP in Claude Code

Run the claude mcp add command in your terminal, specifying the HTTP transport and your Vinkius server URL. Claude Code saves this configuration to your local JSON file for instant terminal access.

Yes, you can trigger Claude Code headlessly to run `brex_pay_vendor` as part of your deployment scripts. It checks your balance using `brex_get_balance` before sending any money.

Claude Code uses `brex_list_transactions` to fetch raw transaction data, which you can pipe directly to local Unix utilities like grep or jq. This makes it easy to filter large financial datasets without leaving the command line.

The terminal will display a standard unauthorized connection error from the Vinkius MCP gateway. You can update your token in your local configuration file to restore access immediately.

Your transaction histories, employee emails, and cash balances are protected by TLS encryption and the ephemeral design of the gateway. No financial data is cached permanently, and credentials reside strictly in your local terminal configuration.

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