List of Payment Links & Request Tools projects in Web3 (2026)

Coinsub Payment Platform is a cryptocurrency payment infrastructure that lets merchants accept stablecoin payments and manage money movement under their own brand. It supports checkout acceptance, subscription billing, invoicing, and pay links, alongside payouts, wallet-based balance holding, and currency or asset conversion. Businesses integrate it through a hosted checkout page, button or iframe embeds, or a headless API for fully custom payment flows across multiple blockchains.

Sentz App is a self-custody wallet for sending, saving, and receiving stablecoin payments. It lets users fund and withdraw balances via bank transfer or stablecoins, send payments using phone contacts, and generate invoices that clients can pay by card or stablecoin with automatic conversion. The app also offers a rewards feature that pays yield on stablecoin balances and supports a card for spending balances at merchants, with end-to-end encrypted transaction data.

Payy Wallet is a self-custodial mobile app for holding, sending, receiving, and spending stablecoins without managing chains, addresses, or transaction details directly. It generates keys on the user's device, moves value over Payy Network for private, low-cost transfers, and lets users create claimable payment links that recipients redeem through everyday messaging apps instead of copying wallet addresses. Public balances and payment history are not exposed, and users can fund the wallet from crypto exchanges or other wallets. The app underlies Payy's card product, letting verified users extend their stablecoin balance to everyday spending.

BUYLINK is a payment link service that allows merchants and individuals to send a payment URL directly to a customer to complete a transaction. Links can be used for e-commerce stores and peer-to-peer used-goods transactions without requiring a separate checkout integration. The recipient clicks the link and completes payment through NHN KCP's processing infrastructure.

eventgate is a web-based event management platform for organizers and event service providers. It lets users build a branded event website, send unlimited invitation and reminder mailings, manage guest data and registrations, and collect payments for tickets or extras directly during signup. The platform also supports framework events with capacity limits, participant-level access permissions, on-site check-in with badge printing, and post-event follow-up and analytics.