#ethereum

Upgradeable variant of OpenZeppelin Contracts, meant for use in upgradeable contracts.

TypeScript SDK for the OpenSea marketplace

Crosschain Pyth programs and utilities

Velora allows dApps and traders to get the best DEX liquidity by aggregating multiple markets and offering the best rates

LI.FI - Bridge & DEX aggregation: Any-to-Any Cross-Chain-Swap SDK

The Safe{Core} SDK allows builders to add account abstraction functionality into their apps.

:lock: Trezor Firmware Monorepo

OriginTrail Decentralized Knowledge Graph (DKG) is a decentralized knowledge infrastructure for multi-agent AI memory — enabling agents to publish, verify, and query shared knowledge as cryptographically verifiable graph assets across a peer-to-peer network.

TypeScript SDK for self-custodial multi-chain wallets with MPC security, cross-chain swaps, and AI agent support. 40+ blockchains, no seed phrases.

Strict TypeScript types for Ethereum ABIs

Modular TypeScript SDK for the ADAMANT blockchain and deterministic wallet helpers

OUSD and OETH are stablecoins that passively accrue yield while you are holding it

OriginTrail Decentralized Knowledge Graph (DKG) is a decentralized knowledge infrastructure for multi-agent AI memory — enabling agents to publish, verify, and query shared knowledge as cryptographically verifiable graph assets across a peer-to-peer network.

This repo contains a collection of deployments of audited contracts from the Safe modules repository.

BOB is building the Gateway to Bitcoin DeFi, unlocking real utility for the world’s most important asset.

LI.FI Widget for cross-chain bridging and swapping. It will drive your multi-chain strategy and attract new users from everywhere.

Edge Core Javascript implementation. Provides Edge account and wallet functionality for NodeJS/HTML/React Native apps

Types for the LI.FI stack.

TypeScript Interface for Moonwell

WDK module to manage ERC-4337 smart account wallets for EVM blockchains with account abstraction.