BTC DAPP Development Document
Web dApp Development
Chrome Extension Wallet API
https://github.com/mathwallet/math-bitcoinjs
App Wallet API
You can use math-js-sdk to initial BTC payment request with Math Wallet.
math-js-sdk document
https://github.com/mathwallet/math-js-sdk
mathwallet.BTC.transfer(from, amount, to, memo).then(console.log);