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TypeScript interface for Ethereum and EVM chains. Use for reading blockchain state, sending transactions, interacting with contracts, encoding/decoding ABI data, and building dApp backends. Transport-based architecture with full type safety over ABIs.

Hyperlane permissionless interoperability — Mailbox messaging, Interchain Security Modules (ISM), Warp Routes for token bridging, hooks, interchain accounts, and permissionless deployment to any chain. Covers Hyperlane SDK, contract interfaces, and custom security configurations.

Safe (formerly Gnosis Safe) multisig SDK for creating, managing, and executing multi-signature transactions. Covers Safe{Core} SDK (protocol-kit, api-kit, relay-kit), deploying new Safes, proposing and confirming transactions, modules and guards, EIP-1271 signature validation, and Safe Transaction Service integration. Works on Ethereum, Arbitrum, Base, Optimism, Polygon, and 15+ EVM chains.

Complete guide for Orca - Solana's leading concentrated liquidity AMM (CLMM). Covers Whirlpools SDK for swaps, liquidity provision, pool creation, position management, and fee harvesting on Solana and Eclipse networks.

Complete CoinGecko Solana API integration for token prices, DEX pool data, OHLCV charts, trades, and market analytics. Use for building trading bots, portfolio trackers, price feeds, and on-chain data applications.

Foundry toolkit for Solidity development — forge (build/test), cast (chain interaction), anvil (local node), and chisel (REPL). Covers project setup, testing patterns (unit, fuzz, invariant, fork), deployment via forge script, contract verification, gas optimization, and debugging. Works on any EVM chain.

Hyperliquid perpetual futures DEX — order placement (market/limit/trigger/TWAP), position management, leverage up to 50x, WebSocket streaming, vault strategies, and L1 architecture. REST and WebSocket APIs with wallet signing authentication. Python SDK and TypeScript patterns.

Complete guide for Light Protocol on Solana - includes ZK Compression for rent-free compressed tokens and PDAs using zero-knowledge proofs, and the Light Token Program for high-performance token standard (200x cheaper than SPL). Covers TypeScript SDK, JSON RPC methods, and complete integration patterns.

MakerDAO / Sky protocol -- Maker Vaults (CDPs) for DAI minting against collateral, DAI Savings Rate (DSR), Liquidation 2.0 with Dutch auctions, MKR governance, and Sky rebranding (USDS/SKY tokens). Covers DssProxyActions, Vat core accounting, Jug stability fees, and Spark Protocol integration.

Complete deBridge Protocol SDK for building cross-chain bridges, message passing, and token transfers on Solana. Use when building cross-chain applications, bridging assets between Solana and EVM chains, or implementing trustless external calls.