Build invoices with payment links and receive payment using your web browser or the API

Revolutionize your billing with e-invoicing by Whalestack, seamlessly integrating cryptocurrencies and stablecoins into your invoicing process. Elevate customer convenience and capture a wider audience, delivering invoices that cater to both traditional and crypto-centric clientele.

E-Invoicing

Expand your earning potential by offering a range of payment options, tapping into the rapidly growing crypto and stablecoin user base

Invoices

Issue Bitcoin, USDC, EURC, or other invoices, tailored for both you and your customers.

Checkout Pages

Create payment links that lead to fully customizable and responsive hosted checkout pages.

Whitelabel API

Take full control of the payment process within your own application codebase (optionally).

Bank Payouts

Initiate fund transfers to your SWIFT, SEPA, or PIX bank accounts immediately.

Assets and Networks

Integrate the most relevant, trusted, and robust crypto and stablecoin assets. Effortlessly exchange and transfer from and to your bank accounts

Bitcoin

Lightning Sats

Litecoin

Stellar Lumens

SWIFT

SEPA

Brazilian PIX

USDC

EURC

BRL Coin

Bitcoin

Lightning

Litecoin

Stellar Network

Ethereum

List Assets

Commercial Benefits

Increase profitability at your online business

Maximize growth with a flexible payment platform that empowers you to lower costs, increase sales, and adapt quickly.

Capture More Revenue

Offer varied payment options to tap into crypto and stablecoin users, a rapidly growing market segment.

Expand Customer Base

Cater to a wider audience by integrating cryptocurrencies and stablecoins into your payment system.

Improve Cash Flow

Leverage fast transaction times, instant settlements and payouts, and avoid chargebacks to bolster your financial stability.

Reduce Cost of Payments

Achieve a substantial reduction in transaction fees of up to 85% compared to traditional payment methods.

Designed for Developers

Accelerate development with our robust, user-friendly payment APIs

Slash your engineering timelines as we seamlessly handle the intricacies of diverse blockchains and banking networks, empowering you to craft checkouts, dispatch e-invoices, and manage global transactions with ease.

Read the Docs

{
   "charge":{
      "customerId":"716dad4c5e5f",
      "billingCurrency":"EUR",
      "lineItems":[
         {
            "description":"PCI Graphics Card",
            "netAmount":169.00,
            "quantity":1
         }
      ],
      "shippingCostItems":[],
      "taxItems":[],
      "discountItems":[]
   },
   "paymentCurrencies":["BTC","USDC","EURC","LTC","XLM"],
   "settlementCurrency":"USD", // or EUR, BTC, BRL, etc.
   "webhook":"url-on-your-server"
}

More APIs...

Enhance your Tech Stack with Whalestack

PHP Whalestack SDK for PHP on GitHub

NodeJS Whalestack SDK for NodeJS on GitHub

Ruby Whalestack SDK for Ruby on GitHub

Add cryptocurrencies and stablecoins to your payment accruals. Manage blockchain wallets on Bitcoin, Lightning, Stellar, and more. Link SWIFT, SEPA, and other bank accounts for on- and off-ramping. Swap seamlessly between crypto, stablecoins, and fiat money. Transfer funds to blockchain wallets or your bank accounts.

Key Benefits

Capitalize on the advantages of the Whalestack payment solution

Integrate our crypto payment gateway to expand your customer base and increase revenue. Optimize conversion rates, boost shopping cart values, and enhance profit margins with innovative payment methods. Enjoy global reach and multilingual support, providing a user-friendly shopping experience.

Compliant Accounting

Benefit from exportable financial reports and accurate recording of cryptocurrency transactions in your base currency for enhanced financial transparency.

Risk Protection

Eliminate chargebacks entirely and profit from robust measures to shield your enterprise from the inherent fluctuations in cryptocurrency values, thereby ensuring an effective mitigation of financial risks.

Built-in Automation

Automate with webhooks and programmatically trigger actions based on lifecycle events like checkouts, deposits, transfers, swaps, and refunds.

Auditable Transactions

Efficiently gather and securely retain payment information across various payment methods, with the capability to seamlessly export this data at your convenience.

Product E-Invoicing