cosmosjs
A JavaScript library for building APIs and signing transactions for Cosmos SDK blockchains.
Overview
CosmosJS is a general-purpose library designed to simplify interaction with the Cosmos ecosystem. It enables developers to create JavaScript client-side APIs for blockchains built with the Cosmos SDK, including the Cosmos Hub (Gaia), by providing tools for transaction signing and blockchain communication.
Key Features
- Transaction Signing — Supports signing via Ledger hardware wallets and local wallets for secure transaction creation.
- Custom Message Creation — Allows developers to define and use custom message types (like MsgSend) for blockchain-specific operations.
- Multi-Blockchain Support — Facilitates building APIs for any Cosmos SDK-based blockchain, not just Gaia.
- Automatic Parameter Handling — Automatically calculates account numbers and sequences if omitted, simplifying transaction construction.
- TypeScript Integration — Built with TypeScript, offering type safety and modern development tooling.
Philosophy
CosmosJS aims to provide a flexible, developer-friendly foundation for JavaScript applications to interact seamlessly with the Cosmos ecosystem, abstracting complexity while maintaining compatibility with Cosmos SDK standards.
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