Ethereum JavaScript API
JavaScript/TypeScript/Python/C#/PHP cryptocurrency trading API
Fuel Network Typescript SDK
OpenZeppelin Contracts is a library for secure smart contracts
A single Web3 provider solution for all Wallets
A JavaScript/TypeScript API for interacting with the XRP Ledger
Bitcoin Alts portfolio tracker, email / text / alexa / telegram alerts
Utilities for handling Ethereum keys
Cryptocurrency Payment Gateway - your payment processor