Payments Infrastructure / Applications

In Brief

Kallubi has introduced a website payment button that allows merchants to receive BSV token payments directly into their own wallets. The publicly available tool generates embeddable code, provides QR-based checkout, and detects incoming transactions through a blockchain data service.

An additional shipping-address feature allows merchants to collect delivery information for physical goods without routing that information through Kallubi. The developer provides a test mode and configurable transaction-confirmation requirements.

New Report

Kallubi has released a merchant-facing BSV Blockchain Pay Button designed for integration into ordinary websites and online shops.

The tool is available through Kallubi BSV Explorer and includes a browser-based generator for configuring a payment button. Merchants enter their receiving address, payment amount, and product description, then copy the generated JavaScript and HTML snippet into a compatible website.

The button supports light and dark themes, several visual styles, and language options including English, German, Spanish, French, Italian, and Portuguese.

When a customer selects the button, a payment dialog displays a QR code, merchant address, exact amount, and countdown. The customer completes the payment through a compatible BSV wallet.

Funds are directed to the merchant’s specified blockchain address. Kallubi does not act as a payment custodian or require access to the merchant’s private keys.

The developer advertises the service without registration or additional platform fees, although normal BSV Blockchain transaction fees remain applicable.

The initial release supports conventional BSV mainnet receiving addresses and amounts denominated in BSV tokens. Paymail support and fiat-denominated pricing remain planned features.

Payment Detection and Confirmation

The Pay Button uses a transaction-detection method designed to distinguish individual payments to the same merchant address.

For each payment request, the application adds a randomly generated amount of between one and 99 satoshis to the specified price. This creates a distinguishable payment amount that can be associated with the corresponding request.

The customer’s browser checks the public WhatsOnChain API for incoming transactions matching the merchant address and expected amount.

The developer provides a configurable confirmation threshold. By default, payments below 0.01 BSV are reported as paid when detected on the network, while payments at or above that amount require one blockchain confirmation.

Kallubi states that it plans to replace the current WhatsOnChain dependency with its own node infrastructure once synchronization is complete.

The browser also emits a payment-status event that a merchant website can use to update its interface.

However, the project’s documentation explicitly distinguishes this notification from authoritative payment verification. Because browser-generated events can be manipulated, merchants are instructed to verify the transaction, receiving address, and payment amount independently before fulfilling an order.

The button therefore provides a payment interface and detection mechanism rather than a complete server-side order-validation system.

Shipping Information Added for Physical Goods

Following the initial Pay Button announcement, Kallubi introduced an optional shipping-address feature.

Merchants can configure the checkout to request a customer’s name, street address, postal code, city, and country, with optional email and additional instructions.

The developer provides two delivery methods for this information.

A merchant can specify an HTTPS endpoint to receive shipping details directly from the customer’s browser as structured data. Alternatively, the buyer can send the details through their own email application after completing the payment.

According to Kallubi, shipping information is not transmitted to or stored by its own servers.

This extension makes the button more suitable for merchants selling physical products, where confirming receipt of payment is only one part of completing an order.

Public Availability and Technical Scope

The Pay Button generator and demonstration are publicly accessible on Kallubi BSV Explorer.

The demonstration allows visitors to inspect the checkout process without making a real payment. It displays a payment request, QR code, and simulated transaction confirmation.

The live payment interface loads JavaScript from a Kallubi-hosted service. Although merchant funds are sent directly to their own addresses, the integration therefore retains a software-delivery dependency on the provider’s hosting infrastructure.

The public interface and simulated checkout were inspected for this report. A completed live payment was not independently tested, and a dedicated source repository for the Pay Button implementation was not confirmed in the reviewed materials.

BSV TIMES Read

Kallubi’s Pay Button addresses a practical requirement for broader BSV Blockchain payment adoption: allowing an ordinary website operator to add a payment option without developing a complete blockchain integration.

The distinction between payment custody and supporting infrastructure is important. Merchants retain control of their receiving addresses and funds, while the embedded interface handles presentation, transaction detection, and customer-facing status updates.

At the same time, the implementation demonstrates why payment detection and payment verification must remain separate. A browser can observe a transaction and notify the merchant’s website, but dependable order fulfillment still requires an independent check that the expected payment was received.

The shipping-address extension moves the project a step beyond a basic payment demonstration toward conventional online commerce.

Its broader usefulness will depend on reliable transaction detection, merchant adoption, and continued availability of the hosted script and underlying data services.

Developer Context

Kallubi is an independently maintained BSV Blockchain software project developing blockchain exploration tools and wallet applications.

Its Kallubi BSV Wallet has previously received coverage from BSV TIMES for its support of multiple historical wallet-derivation conventions, including recovery procedures for users of earlier BSV wallets.

The Pay Button extends the project’s work from blockchain data access and wallet compatibility into merchant payment integration.

Source Link

Kallubi BSV Explorer — Pay Button and Live Demo

Kallubi — Pay Button Announcement

Kallubi — Shipping-Address Feature Announcement

BSV TIMES — Kallubi Publishes RockWallet BSV Recovery Path

Posted on October 31, 2026 (UTC)