ChargeOS · Billing & Smart Dunning
Billing engine that charges, splits and recovers — automatically
Automated invoicing, PIX QR codes, registered boletos, recurring subscriptions, marketplace split payments and intelligent dunning with configurable collection rules — all via API.
Invoice #INV-2847Paid
Tech Solutions Ltda
R$15.420,00
PIXBoleto
SubscriptionActive
Plan ProR$ 299/mês01/04/2026
Plan EnterpriseR$ 1.499/mês15/04/2026
Dunning RuleRunning
D+1Email reminder
D+3SMS + WhatsApp
D+7Retry payment
D+15Protest
94%
Recovery rate
< 200ms
Invoice issuance
4
Payment methods
Split
Marketplace ready
Multi-canal
Dunning channels
NFS-e
Automated invoices
Billing building blocks for any revenue model
Billing & Invoicing
One-time InvoicesInstant issuance
SubscriptionsRecurring plans
ProrationUpgrade / downgrade
NFS-eAutomated tax invoices
Collection
PIX QR CodeStatic & dynamic
Registered BoletoCIP
Credit CardTokenized
Split PaymentMarketplace
Dunning & Recovery
Collection RulesConfigurable
Multi-channel RetryEmail, SMS, WhatsApp
Progressive EscalationAutomated
Protest & NegativationAutomated
From invoice to cash — fully automated
ChargeOS handles the complete billing lifecycle: invoice generation, multi-method collection, smart dunning with configurable rules, and automatic recovery — reducing churn and maximizing revenue.
Your ProductRevenue events
SaaSMarketplaceSubscriptionE-commerceLending
ChargeOS
Billing + Dunning EngineInvoicing
One-time & recurring
Collection
PIX, Boleto, Card
Split
Marketplace
Dunning
Smart recovery
Payment InfrastructureSPI · CIP · Acquirers
SPI (PIX)
CIP (Boleto)
Acquirers
NFS-e
Protesto
Full billing, one API
From invoice creation to payment recovery — every billing operation accessible via REST endpoints.
Issue invoices in milliseconds
Create one-time or recurring invoices with multiple payment methods attached.
Invoices — Request
1curl https://api.revenu.com/charge/invoices \2-u:prod_key \3-d customer_id='cus_7xMn8kR5' \4-d amount=15420 \5-d methods='pix,boleto'▌
Response — 200 OK
{
"id": "inv_3xMn8kR5",
"status": "pending",
"amount": 15420,
"pix_qr": "00020126...",
"boleto_line": "23793.38128..."
}▌
Everything you need, nothing you don't
Billing
Flexible Invoicing
One-time, recurring, usage-based, or hybrid. Support for proration, discounts, and tax calculations.
Subscription Management
Flexible billing cycles, trial periods, grace periods, and automatic plan transitions.
Split Payment
Distribute payments between multiple recipients. Configurable splits by percentage or fixed amount.
Automated NFS-e
Automatic tax invoice issuance upon payment confirmation. Integrated with municipal systems.
Collection & Recovery
Multi-method Collection
PIX QR (static/dynamic), registered boleto, and tokenized credit card. Customer chooses the method.
Smart Dunning
Configurable collection rules with progressive escalation. Email, SMS, WhatsApp, and payment retry.
Automatic Recovery
Retry failed payments with smart timing. Card updater for expired cards. Method fallback.
Protest & Negativation
Automated protest filing and credit bureau negativation for persistent defaults.
Developer
Full Sandbox
Test invoicing, subscriptions, split rules, and dunning flows in production-identical environment.
Real-time Webhooks
Events for every billing lifecycle change: created, paid, overdue, recovered, protested.
Revenue Analytics
MRR, churn, recovery rate, and cohort analysis via API. Build custom dashboards.
Native SDKs
Go, Node.js, Python, and Java. Checkout components for React and Flutter.
Why ChargeOS over legacy billing?
Legacy
ChargeOS
Invoice issuance
Manual / ERP batch
Instant via API
Payment methods
Boleto only
PIX + Boleto + Card
Dunning
Email reminders
Multi-channel smart rules
Split payments
Manual transfers
Automatic marketplace split
Subscriptions
Spreadsheet tracking
Full lifecycle management
Recovery rate
~60%
94%+
Case Study
“ChargeOS increased our recovery rate from 62% to 94%. The smart dunning rules with WhatsApp and automatic retry recovered R$ 2.3M in the first quarter alone.”
Head of Finance, SaaS Delta
94%
Recovery rate
R$ 2.3M
Recovered Q1
< 200ms
Invoice issuance
Try ChargeOS now
Create invoices, test subscriptions, configure split rules, and simulate dunning flows — all in a production-identical sandbox.
Free sandboxNo credit cardTest payment methods
Sandbox
Access the sandbox
Test credentials in minutes.
Free sandbox environment · No credit card
Regulated from day one
BACEN
ISO 27001
PCI DSS v4.0
LGPD
MED 2.0
ISO 20022
Start building today
Direct access to complete banking infrastructure: accounts, cards, payments and capital. Build your financial products on your terms, without unnecessary intermediaries.