---
title: "Brex MCP Server: Claude and ChatGPT Setup | SourceMedium"
description: "Brex runs an MCP server at api.brex.com/mcp: Claude, ChatGPT, Cursor, or Codex can query expenses, cards, bills, and bank transactions, and fix memos."
url: "https://sourcemedium.com/mcp-directory/brex/"
type: static
generatedAt: "2026-09-29T01:21:01.000Z"
---

[MCP Directory](https://sourcemedium.com/mcp-directory/) Payments and finance Official SourceMedium integration
# Brex MCP server

Remote endpoint api.brex.com/mcp. Checked September 2026.

Card expenses, spend limits, bank transactions, vendor bills, and travel are what Brex's server at api.brex.com/mcp reads, in beta. Its writes stay on the signed-in user's own transactions: it can fix an expense's memo, attendees, or receipt and assign the expense to a spend limit.

## Brex MCP options

Every fact in a row comes from the publisher's own documentation.

| Option | Audience | Reads or changes | Sign-in | Setup |
| --- | --- | --- | --- | --- |
| Brex MCP `https://api.brex.com/mcp` Brex | Merchants | Reads users, expenses, cards, spend limits, bank accounts and transactions, bills, vendors, accounting records, and travel; can update expense memos, attendees, and receipts and assign expenses to spend limits, for the user's own transactions. Can write | OAuth sign-in | [Setup guide →](https://developer.brex.com/docs/mcp) |

## Connect Brex to your assistant

Each card lists the servers whose setup guide covers that assistant.

### Connect Brex to ChatGPT or Codex

- [Brex MCP →](https://developer.brex.com/docs/mcp)

### Connect Brex to Claude

- [Brex MCP →](https://developer.brex.com/docs/mcp) [Add from Claude's connector directory](https://claude.com/marketplace/connectors/brex)
Claude Code

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

### Connect Brex to Cursor

- [Brex MCP →](https://developer.brex.com/docs/mcp)
.cursor/mcp.json

```
{"mcpServers":{"brex":{"url":"https://api.brex.com/mcp"}}}
```

Brex's setup guides also name Slack.

## Other ways to reach Brex data

- [Brex Developer Portal (API reference) →](https://developer.brex.com/)
- [Brex API quickstart →](https://developer.brex.com/guides/quickstart)

## One MCP server per tool still can't answer a cross-channel question.

Each server brings its own sign-in, its own definition of revenue, and data your assistant can't join to the rest.

SourceMedium connects 63 commerce and marketing sources, keeps one set of maintained definitions, and gives ChatGPT, Claude, and other assistants a single connection to all of it. SourceMedium delivers Brex as raw tables today, not modeled ones.
## More in Payments and finance

- [Mercury MCP server →](https://sourcemedium.com/mcp-directory/mercury/)
- [NetSuite MCP server →](https://sourcemedium.com/mcp-directory/netsuite/)
- [PayPal MCP server →](https://sourcemedium.com/mcp-directory/paypal/)