Build decentralized apps without compromising user experience

Made for fast development time and radical innovations with digital signatures, Bitcoin Cash payments, and smart contracts.

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Money raised for building on Bitcoin Cash
$1.61M
Next killer app is only a few lines of code!

Hundreds of developers are building on Bitcoin Cash to bring economic freedom to the world. Use Signup to build your next dApp and use Flipstarter or CoinParty hackathon to raise funds!

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  import Signup from "@signupcash/provider";

  const signup = new Signup.cash({ addr: 'DEVELOPER BCH ADDRESS'});

  // Request user permission to spend up to $5
  const { status } = await signup.requestSpendToken({ budget: 5.0 });

  if (status === "GRANTED") {
    // charge your user $2
    const { txResult } = await signup.pay(2, "usd");
    console.log('Done!, transaction id is =>', txResult.txId);
  }


Build apps with

Fast and furious interactions

Signup is using spend tokens to allow users to grant your app permission to spend from their wallet within a boundary. This way, not every single transaction is required to be approved by the user. The end result is a better user experience and faster application.

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Authenticity is the key

Digital Signatures for everything!

Our digital signature API provides users the ability to trust your app to sign on behalf of them within the scope of your domain. So every data can be signed with user's wallet and be verified easily on your server with our utility package.

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