interchainjs v1.9.15

InterchainJS

A single, universal signing interface for any network. Birthed from the interchain ecosystem for builders. Create adapters for any Web3 network.

Table of Contents

• Introduction
• Overview
• Tutorials and Docs
• Auth
• Supported Networks
  • Cosmos Network
  • Injective Network
  • Ethereum Network
• Interchain JavaScript Stack ⚛️
• Credits
• Disclaimer

InterchainJS: Universal Signing for Web3

InterchainJS is a universal signing interface designed for seamless interoperability across blockchain networks. It is one of the core libraries of the Interchain JavaScript Stack, a modular framework that brings Web3 development to millions of JavaScript developers.

At its core, InterchainJS provides a flexible adapter pattern that abstracts away blockchain signing complexities, making it easy to integrate new networks, manage accounts, and support diverse authentication protocols and signing algorithms—all in a unified, extensible framework.

Overview

InterchainJS sits at the foundation of the Interchain JavaScript Stack, a set of tools that work together like nested building blocks:

• InterchainJS → Powers signing across Cosmos, Ethereum (EIP-712), and beyond.
• Interchain Kit → Wallet adapters that connect dApps to multiple blockchain networks.
• Interchain UI → A flexible UI component library for seamless app design.
• Create Interchain App → A developer-friendly starter kit for cross-chain applications.

This modular architecture ensures compatibility, extensibility, and ease of use, allowing developers to compose powerful blockchain applications without deep protocol-specific knowledge.

Visualizing InterchainJS Components

The diagram below illustrates how InterchainJS connects different signer types to various network classes, showcasing its adaptability for a wide range of blockchain environments.

graph LR
    signers --> cosmos_signer["Cosmos Network"]
    signers --> injective_signer["Injective Network"]
    signers --> ethereum_signer["Ethereum Network"]
    signers --> implement_signer["ANY Network"]

    cosmos_signer --> cosmos_amino["Amino Signer"]
    cosmos_signer --> cosmos_direct["Direct Signer"]

    ethereum_signer --> ethereum_eip712["EIP712 Signer"]

    injective_signer --> injective_amino["Amino Signer"]
    injective_signer --> injective_direct["Direct Signer"]

    implement_signer --> any_signer["Any Signer"]

    style signers fill:#f9f,stroke:#333,stroke-width:2px

graph LR
    encoders[Encoders] --> auth["@interchainjs/auth"]
    encoders --> utils["@interchainjs/utils"]
    encoders --> cosmos_types["@interchainjs/cosmos-types"]

    auth --> secp256k1_auth["Secp256k1 Auth"]
    auth --> ethSecp256k1_auth["EthSecp256k1 Auth"]

    utils --> signer_utils["Signer Utilities"]
    utils --> crypto_utils["Crypto Utilities"]

    style encoders fill:#f9f,stroke:#333,stroke-width:2px
    style auth fill:#ccf,stroke:#333,stroke-width:2px
    style utils fill:#ccf,stroke:#333,stroke-width:2px

Tutorials & Documentation

Auth

The authentication module is universally applied across different networks.

Supported Networks

Cosmos Network

Injective Network

Ethereum Network

Interchain JavaScript Stack ⚛️

A unified toolkit for building applications and smart contracts in the Interchain ecosystem

Credits

🛠 Built by Hyperweb (formerly Cosmology) — if you like our tools, please checkout and contribute to our github ⚛️

Disclaimer

AS DESCRIBED IN THE LICENSES, THE SOFTWARE IS PROVIDED “AS IS”, AT YOUR OWN RISK, AND WITHOUT WARRANTIES OF ANY KIND.

No developer or entity involved in creating this software will be liable for any claims or damages whatsoever associated with your use, inability to use, or your interaction with other users of the code, including any direct, indirect, incidental, special, exemplary, punitive or consequential damages, or loss of profits, cryptocurrencies, tokens, or anything else of value.