Brex integration that reaches the systems other tools can't.
Connect Brex to every ERP, accounting, treasury + AI system your finance team runs. Turn card transactions, business banking + travel data into real-time operational intelligence.
+
Live demo · Claude querying Brex + ops via Rayven MCP
Trusted by 240+ teams across Australia + globally
Brex is brilliant at what it does. Useless at everything else your data + AI needs to touch.
Brex's native adaptors cover the basics but reaching ERP, treasury + non-Brex travel tools means custom integration. Cash forecasting lags because business-banking events arrive in batch. AI projects on spend + cash data hit Brex's per-business rate ceilings.
The integration tool you've already tried probably can't fix it.
SaaS-to-SaaS. Useful, until it isn't.
Connectors for Brex, Slack + a thousand other SaaS apps. Cheap + fast for the easy half of integration. Where they hit a wall:
- ERP that should see Brex card + ACH spend against open POs and budgets
- Accounting platforms beyond Brex's native QBO/NetSuite adaptors
- Treasury + cash forecasting needing live business-banking and ACH event flow
- Travel management tools outside Brex Travel
- Data warehouses + AI agents needing live cash and spend position for forecasting
Cards, banking, ERP, AP + AI. One platform.
The integration platform built for what other tools can't (or won't) reach - plus an AI data fabric, MCP server + app builder layered on top.
- Brex + every ERP, accounting and AP system
- Banking, ERP, cards, OCR + custom-built connectors.
- Files, legacy SQL, FTP + custom-built connectors
- Real-time bidirectional sync, tier-aware + rate-limit-safe
- AI Data Fabric, MCP, automation + custom apps included
Brex + Rayven: AI, automation and tools that reach every system you run.
5 examples of what Rayven customers run on Brex + integrated systems. Built in weeks, not months.
Card + ACH spend posts to GL in real-time
Brex card + ACH transactions flow into NetSuite ERP, QuickBooks Online or Sage Intacct with automated GL coding and vendor mapping preserved beyond Brex's native adaptors.
Live banking events feed cash position
Brex business-banking transactions, ACH events + cash sweeps stream into treasury continuously. Cash position + working-capital views update in real-time, not after end-of-day batch. AI cash agents query live data.
Budget + PO context drives card controls
Live budget burn + open POs from ERP flow into Brex as card-policy and approval rules. Spend ceiling, GL code + approver chain auto-update per cost-centre. Card controls follow the budget, not the calendar.
AI-led policy + duplicate-spend detection
Every Brex transaction runs through Rayven's AI policy engine in real-time. Duplicate-spend detection extends across cards, ACH and manual expense reports. Policy fires before settlement.
Card + treasury data, AI-ready
Every transaction, ACH event + banking activity streams into Rayven's data fabric. AI agents query live cash position, vendor concentration + spend velocity across entities. Beyond Brex Insights.
Integration is the start with Rayven.
Here's what comes with it.
Rayven isn't just a Brex connector. It's the operational software platform underneath - so once Brex is connected, four more capabilities come online by default.
AI-ready data layer (AI Data Fabric)
Brex data joined with ERP, IoT + legacy - contextualised, unified and structured so AI models, agents and tools can use it without ETL prep work.
Learn more →
Live AI access (Rayven MCP)
Claude, ChatGPT + Gemini get live, governed access to Brex and every other connected system. Your AI stops guessing - cites real Brex records + numbers.
Learn more →
Automation + AI agents
Workflows + AI agents act on Brex data without human intervention - escalate at-risk accounts, trigger operational work, auto-update forecasts, draft customer comms.
Learn more →
Custom apps + portals
Unified customer portals, ops dashboards, mobile field apps, partner portals - built on top of integrated Brex data. No separate BI tool, no separate dev stack.
Learn more →
All on top of your existing stack. No rip + replace. Brex stays Brex. Rayven works on what you've already built. Specifically tuned for Brex ACH, card event reconciliation and business-banking dual-endpoint orchestration.
Rayven is a five-layer platform ALL your integrations + much more
can run on.
Integration is one layer of Rayven. Data, execution, presentation + governance are the other four - all delivered as one platform on one commercial.
Pick the right tool for your stack.
Brex integration looks different at every scale. Honest comparison of the four common paths - Rayven only wins on some of them.
The integration is the easy bit.
The platform + team behind it is the difference.
Platform + team. One commercial.
Not five vendors stitched together. Rayven is the platform AND the Australia-based expert team that scopes, builds + supports it. One commercial. No licence stacking, no finger-pointing.
Built for Brex's card + business-banking dual model.
Rayven handles Brex's per-business rate limits, ACH, card event reconciliation and business-banking webhook variance natively. REST + webhooks with dual-endpoint orchestration drives real-time sync of card, ACH and banking events into ERP, treasury and AI beyond Brex's native adaptors.
We stay after go-live.
No handoff. No disappearing. Rayven is a long-term partner when your Brex evolves, your stack changes, or you push further. 24/7 support. Same team, same platform, same commercial.
Hosted your way, where you need.
Deploy as cloud, private cloud + on-premise - in Australia, the US, the UK, or anywhere else your Brex data needs to live. Your residency, your rules, your local compliance environment.
The questions Brex admins, RevOps + IT ask first.
If you're evaluating Rayven for Brex integration, these are the things worth knowing before booking a call.
The 30-minute call covers
- Your Brex + connected stack today
- What's reachable + which systems to bring in first
- Live walkthrough of Rayven against your scenario
- Time, scope + delivery estimate
- Honest read on whether Rayven's the right fit
What is Brex integration?
Brex integration is the practice of connecting Brex's card, business banking and treasury platform to the rest of your finance stack - ERP, accounting, treasury and AI - so card spend, ACH and banking events flow in real-time. Rayven delivers Brex integration as part of an AI data fabric.
How does Rayven connect Brex to other systems?
Rayven uses Brex's REST API + webhooks via OAuth 2.0 for real-time bidirectional sync. Card transactions, ACH events, business-banking activity + budget-rule triggers all flow as first-class integration events. See the Rayven Platform.
What systems can Rayven connect Brex to?
Rayven connects Brex to 1,228+ systems including NetSuite ERP, QuickBooks Online, Sage Intacct, treasury + cash-management systems, travel tools, custom AP and budgeting systems.
How long does Brex integration take with Rayven?
Most Brex integrations go live in 2-12 weeks. A single Brex-to-ERP or Brex-to-treasury flow runs in 2-3 weeks; a multi-entity spend + cash fabric with AI policy and budget controls on top runs 6-12 weeks. Choose DIY, done-for-you or hybrid delivery.
Does Brex have a native API? Why does Rayven add value on top?
Yes - Brex ships a REST API + webhooks with OAuth 2.0. Rayven adds value because production sync needs more than a connector: per-business rate-limit handling, ACH + card transaction reconciliation, beyond-the-native-adaptor ERP coverage, the AI/agent and treasury integration layers on top. Read more in how Rayven works.
What are the most common Brex integration use cases?
Top use cases are card-to-GL posting beyond native adaptors, business-banking-to-treasury flow, budget-driven card controls, AI duplicate-spend detection + AI agents on live cash. See the automations above for specifics.
What are the technical specifics of Brex integration with Rayven?
Rayven uses Brex's REST API + webhooks via OAuth 2.0 for real-time bidirectional sync. Per-business rate limits managed natively via batching, queuing + back-pressure so end-of-day settlement bursts never throttle out. Card transactions, ACH events, business-banking activity, cash sweeps, vendor-master records, custom fields + budget-rule data are preserved with field-level mapping into NetSuite ERP, Sage Intacct, QuickBooks Online, treasury and AI targets - including ERPs beyond Brex's native adaptors. ACH + card events arrive on separate endpoints; Rayven orchestrates a dual-endpoint reconciliation so cash and spend stay in lockstep. Business-banking webhook delivery patterns are normalised against the card webhook stream. Live ERP budget burn + open POs flow back into Brex as card-policy rules so spend ceilings track the budget. Multi-entity Brex estates reconcile via Rayven's spend-master layer. Validated against Brex Essentials, Premium, Enterprise tiers and Brex Business Banking. Configurable to your local tax + compliance environment.
Brex + AI integration.
In weeks, not months.
Book a 30-minute call. Walk away with a tailored plan - what's reachable, what to bring in first, time + scope.