Brex
Free tierModern finance platform with AI-powered cards, banking, expenses, and accounting in 120+ countries
Free tier available·All audiences·Powered by Brex (proprietary AI)·API available
Key strengths
AI-powered expense automation saving 4,250+ hours/year99% expense policy compliance rateGlobal coverage across 120+ countriesUp to 3.67% yield on business banking balancesThousands of two-way ERP integrations
Free tier + paid plans
Salt Lake City, USA
Founded 2017
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Technical Setup & API Overview
Brex provides a RESTful API and native integrations for developers and finance engineering teams.
Key Capabilities
- API Access: Brex's API allows programmatic management of cards, transactions, budgets, and expense reports. Authenticate via OAuth 2.0 tokens.
- ERP Integrations: Thousands of two-way integrations with ERPs (NetSuite, SAP, QuickBooks, etc.) for automated GL coding, accrual booking, and entity-level accounting globally.
- Webhook Support: Subscribe to real-time transaction and expense events to trigger downstream workflows.
- AI Expense Engine: Automated receipt matching, policy enforcement, and GL code suggestions are available via the platform's AI layer — no additional model configuration required.
Example: Fetch Transactions via API
curl -X GET https://platform.brexapis.com/v2/transactions/card \
-H "Authorization: Bearer {YOUR_TOKEN}" \
-H "Content-Type: application/json"
Key Parameters
| Parameter | Description |
|---|---|
cursor | Pagination cursor for large result sets |
limit | Number of results per page (max 100) |
expand[] | Expand nested objects (e.g., merchant, budget) |
Refer to the Brex Developer Docs for full API reference, SDKs, and webhook schemas.