Open-Source Billing And Rating Platform For Subscription
C++ version of Ted Dunning's merging t-digest
Open-Source Billing And Rating Platform For Subscription
Open source subscription and usage-based billing platform.
AI agent that recovers failed payments: root-cause diagnosis (rules-first + LLM tail), EV-ranked interventions, deterministic guardrails, payment-link execution — every action on a hash-chained ledger. Pre-registered eval: +10.24pp recovery vs tuned-naive baseline.
Quote-to-cash agent on Cloudflare: LLM-parsed quotes, Workflow-orchestrated approval → invoice → payment → dunning, Durable Object deal memory
Stripe payment recovery SaaS — automatically retry failed charges, send dunning emails, and track recovered revenue for SaaS businesses.
An opinionated read-only Stripe MCP server for indie SaaS founders to ask AI about MRR, churn, failed payments, dunning recovery, disputes, at-risk customers, and support context in plain English.
Agent skills for Stripe-native SaaS founders fighting churn — by Unchurn (https://unchurn.dev)
Churnkey — independent third-party profile of a public API surface, by API Evangelist. Churnkey is retention and growth infrastructure for subscription companies. It provides personalized Cancel Flows that intercept subscription cancellations with pauses, discounts, plan changes and surveys; Failed Payment Recovery (dunning) that recovers involunta
Multi-tenant usage billing control plane with direct Stripe integration — pricing catalog, invoicing, payments, dunning, and operator tooling.
Recovers failed payments using an explainable seven-rule engine, not a model. Three cost-ordered tiers (silent retry → WhatsApp → Hinglish voice call), compliance stopping rules, and a full audit trail.
Managed recurring billing engine built natively on Nomba. One API call starts a subscription. Everything after — dunning, renewals, recovery, ledger is handled automatically.
Open-source Slack bot that chases overdue invoices: reads QuickBooks or Wave, drafts gentle-to-firm reminders, and sends via Gmail only after you approve. No database, no payment rails, no auto-send. A human-in-the-loop alternative to Bill.com-style dunning for founders, freelancers, and bookkeepers. MIT.
Subscription billing as a state machine: trials, renewals, dunning, proration, cancellation. Exact Decimal money, zero dependencies.
$ Preact subscription operations console for billing health, invoices, dunning, plans, seats, and renewal workflows.
Non-custodial failed-payment recovery (dunning) engine - Java 21 + Spring Modulith over PostgreSQL.
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