No moat. Still in business.

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Adds usage limits, credits, plans and spend controls on top of Stripe so AI startups can change pricing without rebuilding billing.

Free plan · Payments and checkout · Developers

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Open-source billing engine that meters usage, runs subscription and hybrid plans, and issues invoices for software firms.

Since 2021

Free · Invoicing and billing · Software companies

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Adds a surcharge or discount to WooCommerce orders depending on which payment method the shopper picks.

Free plan · Payments and checkout · Online sellers

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WordPress form plugin for taking Stripe or PayPal payments, signed waivers and bookings right inside the form.

Free plan · Payments and checkout

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Takes payments, subscriptions and usage billing for software makers and handles sales tax worldwide as merchant of record.

Payments and checkout · Developers

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Ticket selling for event organisers, from classes to festivals, paying out to your own Stripe account per sale.

Free plan · Payments and checkout · Events

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An API that confirms USDC payments on several blockchains without holding funds, for apps and AI agents.

Free plan · Payments and checkout · Developers

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A WordPress plugin that connects Turkish virtual POS payment providers to WooCommerce, donation, booking and form plugins.

Payments and checkout · Online sellers

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Runs subscription plans, usage metering, coupons and invoices across several payment gateways for SaaS firms.

Free plan · Invoicing and billing · Software companies

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WooCommerce plugin letting shops accept Bitcoin and more than 200 other cryptocurrencies at checkout, processed through NOWPayments.

Payments and checkout · Online sellers

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Adds recurring billing, trials, split payments and subscription boxes to WooCommerce stores.

Free plan · Payments and checkout · Online sellers

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Lets teams building AI agents store user cards or issue cards so their agents can pay for things online.

Payments and checkout · Developers

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Sell event tickets online or at the door, with reserved seating, scanning apps and branded event pages, paying a fee per ticket.

Since 2014

Free plan · Payments and checkout · Schools and tutors

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Lets AI phone agents know returning callers by number and charge their saved card through the merchant's own processor.

Payments and checkout · Restaurants and cafés

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Takes payments as merchant of record for software and AI products, with subscriptions, usage billing and tax handled.

Since 2025

Invoicing and billing · Developers

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Billing for SaaS and AI companies that handles subscriptions, usage metering, quotes and invoices.

Free plan · Invoicing and billing · Software companies

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Gives freelancers abroad USD, EUR and MXN account details to get paid by clients, held as USDC with a Visa card.

Payments and checkout · Freelancers

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Sell digital files through your own Stripe account with branded download pages and no extra transaction fees.

Subscription · Payments and checkout · Online sellers

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A self-hosted gateway that lets online shops take payments in many cryptocurrencies without a middleman or fees.

Free plan · Payments and checkout · Online sellers

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WordPress plugin that adds Buy Now buttons so site owners can take PayPal and card payments in a popup checkout.

Free · Payments and checkout · Online sellers

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Checks a Stripe account for payments that skipped card checks and gives Radar rules to stop card testing fraud.

Free plan · Payments and checkout · Online sellers

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Handles in-app subscriptions for mobile apps, with a paywall builder, price tests and revenue reports for app teams.

Free plan · Payments and checkout · Developers

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Lets merchants invoice in Monero and have customers pay straight into the merchant's own wallet, with APIs and webhooks.

Payments and checkout · Shops and retail

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Adds a shopping cart and checkout to an existing website, blog or link page so you can sell products without a new store.

Since 2022

Subscription · Payments and checkout · Online sellers

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A free WordPress plugin for taking one-off and recurring payments through buy buttons, payment forms and invoices.

Free plan · Invoicing and billing

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Connects a WooCommerce store to Square so payments, stock levels, orders and customer records stay in step between both.

Free plan · Payments and checkout · Shops and retail

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Build hosted or embedded checkout pages to sell products, subscriptions, tickets and services through your own Stripe account.

Since 2018

Free plan · Payments and checkout · Online sellers

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Lets WooCommerce shops take Bitcoin, Ethereum and other coins straight into their own wallet with no transaction fees.

Free plan · Payments and checkout · Online sellers

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Online ticket selling for event organisers, with event pages, reserved seating, attendee emails and a door check-in app.

Pay as you go · Payments and checkout · Events

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Lets foreign visitors to India pay at shops and taxis by scanning UPI QR codes, with no Indian bank or SIM.

Since 2023

Payments and checkout · Individuals and families

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Lets online stores take crypto payments, with escrow, wallets and an API, for a small fee per sale.

Free plan · Payments and checkout · Online sellers

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Open source platform for running subscription and usage billing plus payment routing on your own servers.

Invoicing and billing · Software companies

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Adds cancel flows with offers and recovers failed card payments for subscription businesses that bill through Stripe.

Payments and checkout · Software companies

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Acts as merchant of record for software companies, handling subscriptions, usage billing, feature limits and global sales tax.

Pay as you go · Invoicing and billing · Software companies

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Lets SaaS and API sellers charge customers tiny amounts per request and pays out monthly to Stripe.

Since 2025

Invoicing and billing · Developers

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Adds a store credit wallet to WooCommerce so customers can earn cashback, pay part of an order and send funds to each other.

Free plan · Payments and checkout · Online sellers

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Take Bitcoin payments in your online store or shop with no fees or middleman, paid straight to your wallet.

Free · Payments and checkout · Shops and retail

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Phone app for people and small sellers in Ecuador to take card payments by tap, link or QR without a card machine.

Pay as you go · Payments and checkout

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Free open-source point of sale for shops and restaurants that bills offline on your own computer, with optional cloud sync.

Free · Payments and checkout · Restaurants and cafés

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API and file checker that confirms an IBAN maps to a real bank and BIC before invoices or payroll are paid.

Free plan · Payments and checkout · Accountants and bookkeepers

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A WooCommerce plugin that shows prices in the shopper's currency at live rates and can take payment in that currency.

Free plan · Payments and checkout · Online sellers

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Open-source platform for marketplaces to onboard sellers and send them low-fee payouts worldwide using stablecoins.

Since 2026

Pay as you go · Payments and checkout · Online sellers

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A WordPress plugin that connects Indian and global payment gateways to shop, form, course and donation plugins.

Payments and checkout

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Issues and checks license keys for software you sell, hooked to your payment provider, with a portal for buyers.

Free plan · Payments and checkout · Developers

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Sell event tickets and check guests in by QR code for a flat yearly fee, with no commission on each sale.

Subscription · Payments and checkout · Events

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Gives each AI agent purchase its own single-use virtual card, with spending limits and approval rules you set.

Subscription · Payments and checkout · Individuals and families

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Lets local businesses sell their own branded gift cards on their website and redeem them in store, paying per sale.

Pay as you go · Payments and checkout · Restaurants and cafés

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Free WooCommerce plugins that connect a store to Stripe, PayPal or Braintree to accept cards and other methods.

Free · Payments and checkout · Online sellers