Shared rendering logic for dunning/reactivation emails: merge fields, CTA, design resolution, custom HTML sanitization

Batteries-included Stripe billing for hazo apps: pricing UI, subscriptions, lifetime, coupons, dunning, refunds, invoices, tax, metering.

n8n community node for TaxMetall ERP — read customers, articles, orders, offers, invoices, delivery notes, purchase inquiries, purchase orders, purchase invoices, suppliers, dunning, and execute statistics queries via the TaxMetall REST API.

The subscription layer a payment provider does not give you: a pure state machine over trials, renewals, dunning, proration and invoices, with no database and no provider.

Placeholder for @tollkit/dunning. Reserved for Tollkit.

Recurring card billing for WayForPay and LiqPay: one interface, signed webhooks, server-side renewals and a dunning ladder, for products that cannot use Stripe.

n8n community node for the Billabex public API (accounts, invoices, credit notes, dunning, tasks).

A framework-agnostic subscriptions & growth toolkit — plans, entitlements, metering/overage, referrals, coupons, gifting, activation, and dunning — layered on paykit. Runs on Node, Cloudflare Workers, Deno, and Bun.

Stateless recurring subscription billing for Paystack — retries/dunning, proration, lifecycle tracking, webhook verification, and saved-card charging. You own the storage.

Core billing primitives for Razorpay recurring UPI and UPI Autopay SaaS flows: mandates, subscriptions, invoices, dunning, and entitlements.

Command-line interface for Slonge Billing — manage clients, projects, invoices, quotes, time entries, expenses, dunning, reports, and settings from the terminal.

Feature flags: permanent switches, and temporary ones that cannot be forgotten

Model Context Protocol server for Churnkey. Lets an AI assistant read your retention data and manage cancel flows, offers, and recovery campaigns.

Open Source Subscription Medusa Plugin.

Open Source Subscription Medusa Plugin.

Developer-friendly & type-safe Typescript SDK specifically catered to leverage *@juo/admin-api* API.

Fayz SDK — plugin-notifications plugin

React hooks, server proxy helpers, and primitive components for Throttle subscriptions.

Card-network retry-compliance engine: decide whether a declined Visa/Mastercard card-not-present transaction may be reattempted, why, the fee risk, and when the next attempt becomes eligible.

comms