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Jack Mallers

Strike founder and Bitcoin payments entrepreneur

Jack Mallers founded Strike, a service connecting bitcoin payments with everyday money. It offers a useful example of how Bitcoin can help move money without requiring the recipient to hold bitcoin.

Jack Mallers is an entrepreneur and the founder of Strike. He promotes Bitcoin and the Lightning Network for payments and transfers. His projects show what an open payment network can do, while the services built around it still have their own intermediaries, prices and rules.

When sending money abroad, we usually want to know how much will arrive and how long it will take. Strike, founded by Jack Mallers, also uses Bitcoin to help with that task. In its announcement of 19 May 2023, the company identified Mallers as founder and CEO and announced expansion to over 65 countries. Those were available markets, not active users. The announcement describes the service at that time; its present offering needs a separate check. [1]

Mallers is also associated with Twenty One Capital, a separate business project. A Cantor document filed on 23 April 2025 with the US Securities and Exchange Commission, or SEC, identifies him as its cofounder and CEO. In the attached interview, he discusses increasing the amount of bitcoin per share. A share represents ownership in a company; it is not the same as bitcoin in your own wallet. That increase was a business goal, not a guaranteed return or proof of subsequent achievement. [2]

Imagine someone sending money to family in a supported country. With Send Globally, ordinary money is converted to bitcoin, transferred over the Lightning Network to a partner, and exchanged into the recipient’s local currency. Lightning is a payment network built on Bitcoin for fast transfers. Neither sender nor recipient needs to hold bitcoin: depending on the supported options, funds can arrive in a bank account, on a debit card or in a mobile money account. Bitcoin carries the value between providers. [3]

Before confirming Send Globally, the customer sees an exchange rate that determines the amount received. Strike says it adds no separate transaction fee. The conversion still has a cost: the final rate includes the partner’s rate and a Strike margin, a markup through which the service earns revenue. To compare offers, ask the same question of each: how much leaves my account, and how much actually reaches the recipient? A “no fee” label alone cannot answer that. [4]

A bitcoin balance held in Strike uses custody provided by the service. Strike’s own explanation says the service manages private keys. These are secret data used to sign authorization to spend bitcoin; an account password does not replace them. With Self-custody, the user controls those keys. Sending through Lightning does not, by itself, hand that control to the customer. When withdrawing to your own wallet, the important question is who will control the keys once the payment arrives. [5]

Software sending payments automatically through the Strike API, the interface for communicating with the service, needs a similar distinction. It first obtains a quote identified by paymentQuoteId; executing that quote creates a payment with its own paymentId. Both the quote and the Lightning invoice, a request for payment, expire. An expired quote alone needs a new quote; an expired invoice also needs a fresh invoice and a new quote. Having a quote ready does not yet prove that money was sent. [6]

The service can send software a payment.updated event to report a change. The documentation says it arrives without the new payment state; the program must fetch that state using paymentId. For a payment recorded directly on Bitcoin’s chain, Strike changes PENDING to COMPLETED after one confirmation, meaning inclusion in a block. This explains how this service behaves. It does not mean that a single block gives every bitcoin payment absolute, irreversible certainty. [6]

A feature’s availability can differ from the availability of the whole app. According to help documentation checked on 21 October 2026, Send Globally is unavailable to business accounts and to individuals in Hawaii, New York, Europe and the United Kingdom. The recipient’s country and payout method must also be supported. Fast transfer over Lightning does not itself guarantee immediate credit at every bank. Before sending, check eligibility, the amount received and the delivery estimate shown for that transfer. [3]

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DOC · 001Strike — global expansion announcement (2023)Documentation DOC · 002Cantor — Twenty One communication filed with SEC (2025)Documentation DOC · 003Strike — Send Globally payment flowDocumentation DOC · 004Strike — Send Globally exchange-rate marginDocumentation DOC · 005Strike — custody modelsDocumentation DOC · 006Strike API — sending paymentsDocumentation
Revised: Source-first · No investment advice