FairCancel

Open-source subscription
compliance engine

Checks cancellation flows against ROSCA, 35+ US state laws, EU Consumer Rights Directive, UK DMCCA, and card network rules.

35+ US States EU Directive 2023/2673 UK DMCCA Visa Mastercard AGPL 3.0

View on GitHub Built by Aisophical

Regulatory Coverage

US Federal ROSCA, FTC Section 5, Telemarketing Sales Rule

US States CA, NY, CO, IL, VA, OR, FL, CT, MA, MD + 17 more

European Union Consumer Rights Directive 2023/2673, GDPR Art. 17

United Kingdom DMCCA, 14-day cooling-off period

Visa Subscription enrollment, trial, cancellation rules

Mastercard Billing notifications, receipts, consent rules

What It Does

✓ Rule-based compliance engine — deterministic checks against published regulations, scored 0–100 per cancellation
✓ 4 payment processors — Stripe, PayPal, Adyen, Recurly with unified cancel/refund interface
✓ Tamper-evident audit trail — HMAC-SHA256 chained entries, 3-year retention, PDF export for regulators
✓ Refund calculator — pro-rata, trial, UK cooling-off, multi-currency with zero-decimal handling
✓ Dashboard — compliance scores, cancellation feed, processor health, trend analytics
✓ Webhook-driven — real-time sync with Stripe, PayPal, Adyen, and Recurly events

Stack

BackendFastAPI + Python 3.11

DatabasePostgreSQL 16 + SQLAlchemy 2.0

Task QueueCelery + Redis 7

FrontendReact 19 + Vite + Tailwind

DeploymentDocker Compose (7 services)

Tests~2,000 LOC across 8 test files

LicenseAGPL 3.0

Quick Start

# Clone
git clone https://github.com/AiSophical/FairCancel.git
cd FairCancel

# Configure
cp .env.example .env

# Run
docker compose up -d

# API is live at http://localhost:8000
# Dashboard at http://localhost:3000