Making bitcoin more than an investment.

Bitcoin is the best money. It should be used like it. We build and fund free, open-source projects aimed at making bitcoin the planet’s preferred currency.

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Square Crypto Grants

We can’t hire every bitcoin developer and designer. But we can financially support those with the vision to bring something special to bitcoin.

Organization Grants

  • BTCPay Server
    BTCPay Server

    Our first grant recipient to receive a second, BTCPay Server is a self-hosted, open-source payments processor that shares our goal of making bitcoin the preferred way to pay.

  • Lightning Signer
    Lightning Signer

    Really basic LN infrastructure project that improves security by enabling signed transactions within enterprise HSMs, mobile phone secure elements, and hardware wallets.

  • The Eye of Satoshi
    The Eye of Satoshi

    LN-focused watchtower that monitors blockchain transactions for malicious channel peers attempting to take off with other people’s beautiful coins.

  • Chris Belcher’s CoinSwap
    Chris Belcher’s CoinSwap

    An evolution of the techniques pioneered by CoinJoins, CoinSwap lets you stick it to the man by substantially improving bitcoin’s privacy and fungibility.

Developer Grants

  • ZmnSCPxj
    ZmnSCPxj

    A Lightning and C-Lightning legend, there’s only so much we can say about ZmnSCPxj. And we won’t even say that because you don’t go by ZmnSCPxj if you’re seeking the limelight.

  • Jon Atack
    Jon Atack

    Once accurately described as “the bitcoin dev who looks the most like they could body you at Tony Hawk’s Pro Skater 2,” Jon’s been going ham on Core for a minute now, man.

  • Tankred Hase
    Tankred Hase

    UX-focused dev building Photon, a FOSS library that simplifies how new users get coins off exchanges. No more 24-word seeds. Just enter a PIN and go. But where will you go?

  • Vasil Dimov
    Vasil Dimov

    15-year FOSS Veteran with a P2P and privacy focus working to add support for Tor V3 to Core. Pretty nice of him.

  • Steve Myers
    Steve Myers

    Developer developing the Bitcoin Development Kit, an all-in-one resource that makes it 10x easier for developers to develop on-chain bitcoin wallets. Develop.

  • Lloyd Fournier
    Lloyd Fournier

    If applied cryptography experimentation library, alternative LN payment channel construct, and open DLC-based oracle spec mean anything to you... Lloyd?

  • Gary Fuches
    Gary Fuches

    Passionate advocate for SegWit 2x and blockchain technology, Gary was our intern only a year before receiving our largest developer grant ever. God only knows what he did with it.

  • Riccardo Casatta
    Riccardo Casatta

    FOSS dev building BDK and Firma, didn’t read the grant before signing it and is now condemned to spend eternity aboard a ghost ship where everyone refers to bitcoin as blockchain.

  • Gloria Zhao
    Gloria Zhao

    The first Brink Fellow, Gloria is working on Package Mempool Accept, which makes second layer protocols like Lightning and unlimited breadsticks safer, more reliable, and private.

  • Justin Sun
    Justin Sun

    Our most well-known grantee by far, Justin Sun created Moon University, an open-source bitcoin video library. Now he’s helping two other grantees build BDK.

  • Leon Johnson
    Leon Johnson

    The creator of Advancing Bitcoin, Leon is one of those developers who is working on so many things that it is kind of hard to capture them all in six lines. So I won't try.

  • Fi3
    Fi3

    Another pseudonymous dev. Fi3 is helping develop Stratum V2, a neutral FOSS implementation that can be used by any miner or mining pool in possession of the magic ring.

Designer Grants

  • Christoph Ono
    Christoph Ono

    Designer bringing decentralized structure to the 600+ person Bitcoin Design Community. As the first designer grant recipient, he takes the blame if things don't work out.

  • Thorbjørn König
    Thorbjørn König

    Thorbjørn brings 20 years of design experience to radically rethinking how people manage their private keys. Yes. We vetted him.

  • Johns Beharry
    Johns Beharry

    Hybrid product designer bringing order to on-chain, layer 2, CoinJoins, BLTs, PayJoins, and PSBTs by helping develop the payments section of the Bitcoin Design Guide.

  • Daniel Nordh
    Daniel Nordh

    A contributor to the Bitcoin Design Community since before it was a community, Daniel is helping create the private key management section of the Bitcoin Design Guide.

  • Jamaal Montasser
    Jamaal Montasser

    Researcher deepening our understanding of how people use (and most likely don’t use) the Bitcoin Core wallet, placing particular emphasis on UX, engineering, and accessibility.

  • Maggie Valentine
    Maggie Valentine

    Designer simplifying wallet onboarding flows by reducing technical jargon and increasing user education, ultimately making bitcoin accessible to more people. Even copywriters.

  • Conor Okus
    Conor Okus

    Advancing Bitcoin co-organizer, professional footballer, AND engineer building a wallet prototyping platform WHILE contributing to the Bitcoin Design Guide.

  • Patricia Estevão
    Patricia Estevão

    What motivates people to use bitcoin? What do people hope to gain from bitcoin? Is bitcoin a sandwich? Just some of the questions this UX designer and researcher aims to answer.

@sqcrypto

Small team. Big mission. Medium-sized everything else.

  • Steve Lee

    Steve Lee

    Just a regular bitcoin PM who doesn’t cast a shadow for some reason.

  • Val Wallace

    Val Wallace

    Lightning Network stan and author of our popular Twitter account.

  • Arik Sosman

    Arik Sosman

    8p4K2a3Ag7X0yWng4pGzKZ8eQP04z4AJF0i7kYT11jQ3jtHGym0xHqCZFt1ZzOLQBZT/UStxpeAieZfd1J7Tp7XU21SpUMaH4kPJ3cCu377mUh7+/kFw7a

  • Jeff Czyz

    Jeff Czyz

    Long-distance runner. Contemplative developer. Online dating profile with a lot to be desired.

  • Matt Corallo

    Matt Corallo

    Dev proficient in HTML and CSS. Known for his diverse sense of style and passive approach to social media.

  • Miles Suter

    Miles Suter

    Cash App’s bitcoin PM. Included here because this design doesn’t work without an even number of people. Anyway, ask him about the moon landing.