{"data":[{"slug":"stripe-cli","name":"Stripe CLI","tagline":"Official Stripe terminal for webhooks, events, and API objects","category":"payments","url":"https://docs.stripe.com/stripe-cli","github":"https://github.com/stripe/stripe-cli","pricing":"open-source","hook":"The Stripe CLI is how webhook development stops being a ngrok folklore.","whatsGood":"Apache-2.0. stripe listen forwards webhooks to localhost. Event trigger and resend, live request logs, and API object CRUD from the terminal. The binary is free. This is the official tool, not a third-party wrapper.","theCatch":"The CLI is free; card charges are not. See stripe.com/pricing for processing rates. Live mode needs a real secret. Dispute fees are on Stripe, not on this binary.","verdict":"Install it. Then still pay Stripe when money moves.","addedAt":"2026-09-03","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["cli","api","self-host","permissive","payments","active"],"capabilities":["cli","webhooks","api"],"surfaces":["CLI","API","Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Apache-2.0","githubStars":2210,"starsPerWeek":6,"access":"free","archived":false,"repo":{"createdAt":"2019-06-14","pushedAt":"2026-10-16","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/stripe-cli","html":"/gems/stripe-cli","markdown":"/gems/stripe-cli.md"}},{"slug":"polar","name":"Polar","tagline":"Apache-2.0 merchant-of-record billing for indie and AI products","category":"payments","url":"https://polar.sh","github":"https://github.com/polarsource/polar","pricing":"freemium","hook":"Polar is payments for people who do not want to become a tax department.","whatsGood":"Apache-2.0 (JS SDK is separately MIT). Merchant-of-record for usage, seats, subscriptions, and AI meters. Typed TS/Python SDKs, Next.js and Better Auth adapters, MCP server. Starter is free with no monthly fee: 5 percent plus 50 cents per transaction. polar.sh/pricing 404s; the fees page is the public price list.","theCatch":"No first-party CLI in the docs index — SDKs, MCP, and API only. Starter take-rate sits on top of card-brand costs. Polar is MoR, so you do not keep the Stripe account relationship. International cards add extra. Payouts have their own cut.","verdict":"Apache-2.0 MoR for indie and AI products. Free Starter, honest take-rate, real SDKs.","addedAt":"2026-09-03","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["free-tier","permissive","payments","active"],"capabilities":["mor","billing"],"surfaces":["Hosted"],"ecosystem":["Multi-platform"],"licenseModel":"Freemium","githubStars":10368,"starsPerWeek":53,"access":"free","archived":false,"repo":{"createdAt":"2023-01-26","pushedAt":"2026-10-18","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/polar","html":"/gems/polar","markdown":"/gems/polar.md"}},{"slug":"killbill","name":"Kill Bill","tagline":"Apache-2.0 in-house subscriptions and payments, no % take-rate","category":"payments","url":"https://killbill.io","github":"https://github.com/killbill/killbill","pricing":"open-source","hook":"Kill Bill is the billing engine you run so nobody takes a cut of your revenue.","whatsGood":"Apache-2.0. Subscriptions, invoicing, payments, and plugins you host. Self-Hosted OSS is Free — no percentage take-rate. JVM stack, Kaui admin UI, plugin model. You keep the money-movement relationship.","theCatch":"JVM and ops-heavy. Aviate is the proprietary accelerator — not the Apache tree. Self-Hosted OSS Free; AWS Marketplace is ~$40/mo plus the AWS bill. No revenue tiles here because there is no % of revenue to quote.","verdict":"Apache-2.0 billing you run. Free until Aviate or the AMI; never a take-rate.","addedAt":"2026-09-03","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["self-host","permissive","payments","active"],"capabilities":["billing","subscriptions"],"surfaces":["Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Apache-2.0","githubStars":5801,"starsPerWeek":8,"access":"free","archived":false,"repo":{"createdAt":"2012-10-21","pushedAt":"2026-10-19","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/killbill","html":"/gems/killbill","markdown":"/gems/killbill.md"}},{"slug":"lago","name":"Lago","tagline":"AGPLv3 usage and entitlements metering you self-host","category":"payments","url":"https://getlago.com","github":"https://github.com/getlago/lago","pricing":"open-source","hook":"Lago is usage billing that meters events, not a Stripe dashboard with extra fields.","whatsGood":"AGPLv3. Usage, subscriptions, prepaid, entitlements, invoicing. Self-host the OSS engine. REST API, SDKs, webhooks. Not a payment processor — it talks to Stripe, Adyen, and the rest.","theCatch":"Premium is Contact us. There is no $0 Lago Cloud. Self-host is the free path; Cloud and Premium are quotes. AGPLv3 is network copyleft.","verdict":"AGPLv3 metering. Self-host or talk to sales — there is no hobby cloud.","addedAt":"2026-09-03","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["web-ui","self-host","copyleft","payments","active"],"capabilities":["metering","usage"],"surfaces":["Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"AGPL-3.0","githubStars":10689,"starsPerWeek":44,"access":"free","archived":false,"repo":{"createdAt":"2022-02-28","pushedAt":"2026-10-17","license":"AGPL-3.0","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/lago","html":"/gems/lago","markdown":"/gems/lago.md"}},{"slug":"paymenter","name":"Paymenter","tagline":"MIT hosting billing; self-host free, cloud PaaS $5/mo paid","category":"payments","url":"https://paymenter.org","github":"https://github.com/Paymenter/Paymenter","pricing":"freemium","hook":"Paymenter is the hosting webshop + provisioning panel when Kill Bill or Lago is the wrong shape.","whatsGood":"MIT. Self-host free forever. Automates subscriptions, invoices, and service deployment for hosting businesses. WHMCS importer. Cloud PaaS starts at $5/mo — paid, not free.","theCatch":"Vs Kill Bill/Lago/Polar: hosting webshop + provisioning (Pterodactyl/cPanel, WHMCS importer) — not generic subscription metering or Polar MoR. Cloud is $5/mo paid. Self-host is the $0 path.","verdict":"MIT hosting billing. Self-host free; cloud PaaS is $5/mo paid.","addedAt":"2026-09-04","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["self-host","free-tier","permissive","payments","active"],"capabilities":["billing","hosting","self-host"],"surfaces":["Self-host","Hosted"],"ecosystem":["Multi-platform"],"licenseModel":"Freemium","githubStars":2757,"starsPerWeek":13,"access":"free","archived":false,"repo":{"createdAt":"2022-10-07","pushedAt":"2026-10-16","license":"MIT","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/paymenter","html":"/gems/paymenter","markdown":"/gems/paymenter.md"}},{"slug":"autumn","name":"Autumn","tagline":"Apache-2.0 Stripe billing layer; Free to 8K billing volume","category":"payments","url":"https://useautumn.com","github":"https://github.com/useautumn/autumn","pricing":"freemium","hook":"Autumn is attach/check/track billing infra on top of Stripe when you are tired of webhook state machines.","whatsGood":"Apache-2.0. Self-host or Cloud. Model subscriptions, credits, usage limits, entitlements. Three calls: attach (checkout/upgrades), check (access), track (usage). Free Cloud tier: 8K monthly billing volume, 10k customers, 10M API requests.","theCatch":"Vs Polar/Lago/OpenMeter: Stripe abstraction + entitlements — not Polar MoR, not Lago/OpenMeter metering-first. Stripe fees still apply. Pro Cloud from $375/mo. Free path is Free tier or self-host.","verdict":"Apache-2.0 Stripe billing layer. Free tier real; still bring Stripe.","addedAt":"2026-09-04","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["self-host","free-tier","permissive","payments","active"],"capabilities":["billing","stripe","entitlements"],"surfaces":["Self-host","Hosted"],"ecosystem":["Multi-platform"],"licenseModel":"Freemium","githubStars":2827,"starsPerWeek":31,"access":"free","archived":false,"repo":{"createdAt":"2025-01-21","pushedAt":"2026-10-18","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/autumn","html":"/gems/autumn","markdown":"/gems/autumn.md"}},{"slug":"paddle-cli","name":"Paddle CLI","tagline":"MIT community CLI for full Paddle Billing API; agent-native","category":"payments","url":"https://omshejul.github.io/paddle-cli/","github":"https://github.com/omshejul/paddle-cli","pricing":"open-source","hook":"Paddle CLI is the missing Stripe-CLI-shaped tool for Paddle Billing when the dashboard click-ops is the bottleneck.","whatsGood":"MIT (omshejul/paddle-cli). Spec-driven against Paddle OpenAPI — products, prices, subs, transactions, adjustments. Keychain/credential-store login, write gating, raw paths for new endpoints. uv/Homebrew install. Agent-friendly inspectable commands.","theCatch":"Community CLI — not an official Paddle Inc product; API drift risk. Still need a Paddle merchant account (MoR fees apply). Vs Stripe CLI: Paddle-only. Thin MCP forks exist; this is the general CLI.","verdict":"MIT Paddle Billing CLI. Free tool; Paddle merchant + MoR fees separate.","addedAt":"2026-09-04","featured":false,"domain":"Payments","subSpecialty":"Billing","subcategory":"Billing","tags":["cli","api","web-ui","self-host","permissive","payments","active","young-repo"],"capabilities":["cli","paddle","billing"],"surfaces":["CLI","API","Self-host"],"ecosystem":["Python"],"licenseModel":"OSS/MIT","githubStars":1,"starsPerWeek":0,"access":"free","archived":false,"repo":{"createdAt":"2026-08-04","pushedAt":"2026-08-05","license":"MIT","archived":false,"checkedAt":"2026-10-19"},"links":{"self":"/api/gems/paddle-cli","html":"/gems/paddle-cli","markdown":"/gems/paddle-cli.md"}}],"meta":{"total":7,"count":7,"offset":0,"limit":null,"sort":"curated","sorts":["curated","catalog","new","stars","trending","name"],"filters":{"subcategory":"billing"},"next":null,"categories":["agents","nextjs","python","shopify","databases","devops","design","observability","rust","payments","comms","notifications","libraries"],"tags":["mcp","cli","tui","api","sdk","desktop-app","web-ui","editor-plugin","self-host","local-first","free-tier","paid-only","paid-led","permissive","copyleft","source-available","license-unclear","coding-agents","local-llm","rag","memory","evals","browser-automation","scraping","sandbox","skills","voice","security","auth","payments","realtime","postgres","vector","kubernetes","containers","observability","testing","workflows","graphics-3d","git","active","stale","archived","young-repo","fast-stars"]}}