scaffold-eth-2

Add a PostgreSQL database with Drizzle ORM to a Scaffold-ETH 2 project. Use when the user wants to: add a database, use Drizzle ORM, integrate Neon PostgreSQL, store off-chain data, build a backend with database, or add persistent storage to their dApp.

Add EIP-5792 batched transaction support to a Scaffold-ETH 2 project. Use when the user wants to: batch multiple contract calls, use wallet_sendCalls, add EIP-5792 wallet integration, batch onchain transactions, or use wagmi's experimental batch hooks.

Integrate Ponder into a Scaffold-ETH 2 project for blockchain event indexing. Use when the user wants to: index contract events, add a blockchain backend, set up GraphQL for onchain data, use Ponder with SE-2, or build an indexer for their dApp.

Integrate The Graph subgraph into a Scaffold-ETH 2 project for indexing blockchain events. Use when the user wants to: index contract events with The Graph, add a subgraph, query onchain data with GraphQL, set up a local graph node, or deploy a subgraph to Subgraph Studio.

Add x402 payment-gated routes to a Scaffold-ETH 2 project. Use when the user wants to: monetize an API with micropayments, add HTTP 402 payment required to routes, gate content behind crypto payments, implement pay-per-call APIs, or integrate the x402 protocol.

Add an ERC-721 NFT contract to a Scaffold-ETH 2 project. Use when the user wants to: create an NFT collection, deploy an ERC-721, add NFT minting, build an NFT gallery or transfer UI, or work with non-fungible tokens in SE-2.

Develop smart contracts using OpenZeppelin Contracts library. Use when the user wants to create or modify Solidity contracts that use OpenZeppelin — including token standards (ERC20, ERC721, ERC1155), access control (Ownable, AccessControl), security primitives (Pausable, ReentrancyGuard), or any OZ extension. Covers library-first integration, pattern discovery from installed source, and version-safe development.

Add Sign-In with Ethereum (SIWE) authentication to a Scaffold-ETH 2 project. Use when the user wants to: add wallet-based login, implement SIWE, authenticate users with their Ethereum wallet, add session management with wallet signing, build sign-in with Ethereum, or add Web3 authentication.