Brex Launches AI-Native Accounting API to Automate ERP Integration and Month-End Close

New updates have been reported about Brex.

Brex has introduced an AI-native Accounting API that embeds the company more deeply into customers’ core finance stacks by enabling real-time, two-way data integration with enterprise resource planning systems. Positioned as a step beyond traditional bank feeds and batch exports, the new API is designed to synchronize enriched transaction data continuously between Brex and ERPs, automating tasks such as coding transactions and preparing exports and thereby accelerating the month-end close. The product will initially launch with AI-focused ERP partners Rillet and Campfire, giving Brex immediate access to customers prioritizing automation and ‘zero-day close’ capabilities. Brex CTO James Reggio said the goal is to deliver both accuracy and speed by executing accounting work as transactions occur, rather than at period-end, addressing common pain points around delays, missing context, and error-prone manual reconciliation.

The Accounting API supports two-way data sync so ERP policy and accounting fields flow into Brex and are enforced at the point of spend, while real-time webhooks and expanded endpoints notify accounting systems as soon as transactions happen. This tight coupling with Brex’s broader Accounting AI workflows allows finance teams to automate the full journey “from swipe to close,” turning the close process into a continuous, audit-ready state. In parallel, Brex has rolled out additional AI-driven capabilities—automated accounting workflows that have already removed more than 10,000 hours of manual work for customers, AI-based expense coding that learns and suggests optimal field values and rules, and ERP validation rules that ensure expenses comply with ERP constraints from the outset. For Brex, these launches deepen product stickiness, increase switching costs, and position the company as an infrastructure partner for fast-growing and public companies looking to scale finance operations with fewer resources and greater control across cards, payments, and accounting in more than 120 countries.