// deterministic recovery engine

Get Paid Faster.
Keep Your Relationships.

Traditional invoice chasers are robotic and damage client trust.
The Sentinel uses a Relationship Memory Graph to send thoughtful, human-first nudges that adapt to each client's behavior.

99%Recovery Confidence
21Day Deployment
0Robotic Emails
// the engine room

Sentinel Canvas

Every invoice moves through a deterministic lifecycle. No random reminders. No guesswork.

Issued
128 active
email opened
Viewed
94 tracked
7d post-due
Overdue
41 flagged
firm nudge
Recovery
27 managed
// why sentinel wins

The Unfair Advantage

Relationship Memory Graph

Neo4j maps every client interaction. The Sentinel knows who pays late but is sensitive to tone, and who just needs a gentle reminder.

Neo4j · Cypher

Deterministic State Machine

Every invoice follows a finite, predictable lifecycle. No random email blasts. The FSM decides the exact right moment to act.

Python · Transitions

Contextual AI Voice

GPT-4o drafts nudges that reference previous conversations and match your brand voice. No templates. No robotic repetition.

GPT-4o · Webhooks
// the difference

Generic Chasers vs. Sentinel

Generic Chasers
Invoice Sentinel
Tone Adaptation
Same template every time
Adapts to client personality
Relationship Memory
No history awareness
Neo4j tracks every interaction
Timing Logic
Fixed intervals (Day 7, 14, 30)
State-driven, behavior-based
Client Trust
Feels robotic, damages trust
Feels like a human assistant
// investment

Simple, Transparent Pricing

Starter
$19/mo

For freelancers managing up to 50 invoices.

  • 50 Active Invoices
  • Basic State Machine
  • Email Notifications
  • Single Integration
Enterprise
$3,500 one-time

Custom-built Sentinel for your exact workflow.

  • Custom FSM Schema
  • Dedicated Neo4j Instance
  • White-Label Branding
  • 21-Day Delivery
  • $250/mo Managed Retainer
Book a Call
// ready to deploy?

Stop Chasing. Start Recovering.

Join the Private Alpha and be one of the first to experience deterministic invoice recovery.