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In-house Billing
Official Integration

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.

5 min setup
No code required
Risk-free trial
In-house Billing
Slicker
Recovery Rate+15-40%
Setup Time<5 minutes
REST APIWebhooksCustom fields

Why Slicker + In-house Billing

Our integration unlocks intelligent payment recovery that goes beyond native capabilities.

20%+ uplift

Recovered Payments

AI-powered retries that optimize timing, method, and gateway for each individual failure, layered on top of your existing system.

Full control

Custom Webhooks

Configure exactly which events trigger recovery workflows.

Plug & play

Zero Migration

Add AI-powered recovery to your existing billing infrastructure without changing how payments flow through your system.

Priority

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.

01

API Access

Generate API keys from your Slicker dashboard.

02

Send Payment Events

POST failed payment events to our API when they occur.

03

Handle Webhooks

Receive recovery status updates via configurable webhooks.

04

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

Live
89%
Recovery Rate
$42k
Recovered
2.1s
Avg Response

Frequently 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.

>1M
Recovered payment failures
20%
Recovery rate uplift
<5min
Time to go live
SOC 2 in progress
Enterprise-grade security
Global coverage
Stop the revenue leak

Never Worry About
Payment Failures Again

Retain your customers with the best-in-class AI payment recovery platform. Guaranteed ROI with success-based pricing.

No engineering required
Risk-free evaluation
Pay only for results

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