Recover Failed In-house Billing Payments
Built your own billing system? No problem. Slicker's flexible API allows you to integrate any proprietary or custom billing platform, bringing enterprise-grade payment recovery to your unique infrastructure.
Why Slicker + In-house Billing
Our integration unlocks intelligent payment recovery that goes beyond native capabilities.
Recovered Payments
AI-powered retries that optimize timing, method, and gateway for each individual failure, layered on top of your existing system.
Custom Webhooks
Configure exactly which events trigger recovery workflows.
Zero Migration
Add AI-powered recovery to your existing billing infrastructure without changing how payments flow through your system.
Dedicated Support
Engineering support to help you build the perfect integration.
Payment Expertise Without the Overhead
You built your billing system for a reason. It handles your unique pricing, workflows, and business logic exactly how you need it. But payment recovery is a different beast entirely.
Building recovery intelligence in-house means dedicated teams, years of payment data across industries, ongoing model maintenance, and deep relationships with payment networks. Slicker gives you all of that on day one, layered on top of the infrastructure you already have.
Build In-house
- Multiple engineering teams
- Years to collect sufficient data
- Ongoing model training and maintenance
- Limited to your own transaction patterns
Add Slicker
- API integration in days
- AI trained on 100M+ transactions from day one
- Continuously optimized by our team
- Cross-industry intelligence from thousands of merchants
Setup in Days
Integrate your billing system with our API and start recovering failed payments immediately.
API Access
Generate API keys from your Slicker dashboard.
Send Payment Events
POST failed payment events to our API when they occur.
Handle Webhooks
Receive recovery status updates via configurable webhooks.
Process Retries
Execute retry requests through your existing payment infrastructure.
Perfect for Your Business
Slicker's In-house Billing integration is ideal for businesses that need reliable, intelligent payment recovery.
- Companies with proprietary billing systems
- Platforms requiring white-label solutions
- Businesses with unique payment workflows
- Organizations needing deep customization
Recovery Dashboard
LiveFrequently Asked Questions
Common questions about the In-house Billing integration
At minimum: customer ID, payment amount, currency, decline code, and a callback endpoint. Additional data improves ML optimization.
Yes, if you provide a retry endpoint. Alternatively, we can send retry recommendations and you execute them through your system.
Yes, we provide a full sandbox environment with simulated decline scenarios for thorough integration testing.
Custom integrations include dedicated support, guaranteed uptime SLAs, and priority access to new features.
Complete Payment Recovery
Explore our other products to maximize your payment recovery.
Never Worry About
Payment Failures Again
Retain your customers with the best-in-class AI payment recovery platform. Guaranteed ROI with success-based pricing.



