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A self-hosted UPI & COD payment gateway with zero per-transaction platform fees, universal JavaScript checkout integration, dynamic QR payments, WhatsApp OTP authentication, and automated payment verification.

Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation

Configurable captive page for WiFi hotspot services providing login, sign up, social login, SMS verification, change password, reset password, change phone number, payment flow and more.

Payments are broken for AI agents. Snaplii provides a secure, tokenized payment layer that enables AI agents to transact in the real world — without exposing users' underlying payment credentials.

Active Merchant is a simple payment abstraction library extracted from Shopify. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

Java library for Swiss QR bill payment slips (aka QR-Rechnung)

simple laravel payment package , supports multiple drivers

Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more

💸💳The package allows you accept payment using paystack and guess what, it doesn't require linking! just install and begin to use 🚀

Full-featured MERN Stack E-commerce platform with payment gateway using React, Node.js, Express, MongoDB, JWT, and Tailwind CSS

Learn how to accept a payment from customers around the world with a variety of payment methods.

Condo is an Open Source property management SaaS that allows users to manage tickets, resident contacts, properties, payment tracking, create invoices, and oversee a service marketplace, all while offering an extension system for mini-apps, making it an ideal platform for property management companies and those servicing shared properties.

Open source algorand wallet and algorand web tools - governors tools, payment gateway, ..

Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

Payment Helper of Payment Gateways ( PayPal - Paymob - Fawry - Thawani - WeAccept - Kashier - Hyperpay - Tap - Opay - Paytabs - Vodafone Cash - Orange Money - Meza Wallet - Etisalat Cash - Binance - Payeer - PerfectMoney - NowPayments)

Create ACH, SEPA, FedNow, SWIFT, RTP payment initiations and process bank statements. Used in production to move hundreds of thousands of dollars a month.

One library | Many payment processors | Scale to multiple processors with few lines of code.

A simple and always-updated list of free, working V2Ray servers. including SS, SSR, Trojan, VLESS, VMess, TUIC, and Hysteria2. Just copy, paste, and connect — no signup, no payment, no nonsense. ⏰ Updated every 15 minutes . Also on Telegram: https://t.me/AbdalV2rayBot

Self-Hosted Payment Management Solution

Lucid Agents Commerce SDK. Bootstrap AI agents in 60 seconds that can pay, sell, and participate in agentic commerce supply chains. Our protocol agnostic SDK provides CLI-generated templates and drop-in adapters for Hono, Express, Next.js, and TanStack, giving you instant access to crypto/fiat payment rails (AP2, A2A, x402, ERC8004).

Drop-in OpenAI Typescript client with transparent x402 payment support.

On-chain crypto payment platform for individuals and businesses.

The world's first privacy layer for AI agents on Solana — stealth addresses + x402 payments. Every payment lands at a fresh, unlinkable address.

Let your agents spend on your behalf. Your payment credentials are never exposed. You approve every purchase.

Self-hosted, open-source payment gateway. Manage brands, gateways, and transactions on your own infrastructure.

ChatGPT Plus/Team/Pro 订阅协议端到端重放工具集 · hCaptcha 视觉求解器 · 反欺诈机制实证研究 / End-to-end protocol replay toolkit for ChatGPT Plus/Team/Pro subscription with from-scratch hCaptcha solver and empirical anti-fraud research

Fleer NFT Payment Gateway Checkout API for Blockchain Ticket Events 2026

Bitcoin Payment Plugin for Easy Digital Downloads 2026 BTC Gateway Extension