Nethereum

Help users create and run a local Ethereum development environment with .NET Aspire — DevChain node, blockchain indexer, Blazor explorer, and PostgreSQL. Use this skill when the user mentions Aspire DevChain template, nethereum-devchain, creating a local blockchain environment with Aspire, setting up DevChain with an explorer and indexer, or wants a single-command Ethereum dev environment with .NET. Also trigger when users mention dotnet new nethereum-devchain or Nethereum.Aspire.TemplatePack.

Help users verify Groth16 zero-knowledge proofs from Circom/snarkjs circuits using Nethereum.ZkProofsVerifier (.NET). Use this skill whenever the user mentions ZK proofs, Groth16, snarkjs, Circom, zero-knowledge verification, BN128 pairing, proof.json, verification_key.json, or public.json in a C#/.NET context.

Help users work with EIP-7864 Binary Merkle Tries for stateless Ethereum execution using Nethereum.Merkle.Binary (.NET). Use this skill whenever the user mentions binary trie, EIP-7864, stateless execution, stem nodes, binary Merkle, BasicDataLeaf, code chunking, BLAKE3, or Verkle-style trie structures in a C#/.NET context.

Help users build sparse Merkle trees with Poseidon or SHA-256 hashing for ZK circuits, privacy pools, and state commitments using Nethereum.Merkle (.NET). Use this skill whenever the user mentions sparse Merkle trees, SMT, Poseidon hashing, Celestia SMT, ZK-compatible state trees, nullifier sets, membership proofs, or PoseidonSmtHasher in a C#/.NET context.

Validate and perfect a Nethereum documentation section end-to-end. Use when working on docs sections (getting-started, core-foundation, signing, smart-contracts, defi, evm-simulator, devchain, account-abstraction, data-indexing, mud-framework, wallet-ui, consensus, client-extensions). Covers use case definition, NuGet README verification against source code with compilation, guide page creation, Claude Code plugin skill creation per use case, sidebar updates, and build verification. Trigger when user mentions validating docs, fixing a docs section, creating guides, or perfecting documentation for any Nethereum section.

Help users batch multiple calls into a single UserOperation and sponsor gas with paymasters using Nethereum Account Abstraction. Use when the user mentions batching transactions, atomic multi-call, approve-then-swap in one tx, gas sponsorship, paymasters, gasless transactions, verifying paymaster, deposit paymaster, or PaymasterConfig in .NET/C# with ERC-4337.

Help users run an ERC-4337 bundler using Nethereum — set up in-process or standalone bundlers with mempool, validation, reputation, and JSON-RPC server. Use when the user mentions running a bundler, ERC-4337 bundler setup, BundlerService, BundlerConfig, bundler RPC server, mempool configuration, UserOperation validation, or bundler presets (AppChain, Standard, Production) in .NET/C#.

Fetch contract ABIs from Sourcify, Etherscan, and 4Byte Directory using the composite ABIInfoStorage pattern (.NET/C#). Use this skill when the user asks about ABI retrieval, contract verification, function signature lookup, calldata decoding, or Sourcify/Etherscan API usage.

Help users implement ERC-4337 Account Abstraction with Nethereum — send UserOperations, use smart accounts, route contract calls through a bundler, enable gasless transactions, or work with AA in .NET/C#. Use this skill whenever the user mentions account abstraction, ERC-4337, UserOperations, smart accounts, bundler integration, gasless UX, or anything involving AA on EVM chains with Nethereum.

Help users launch and configure Nethereum AppChains — domain-specific Ethereum extension layers with full EVM, sequencer, follower sync, RocksDB storage. Use this skill whenever the user mentions AppChain, application chain, custom chain, launching a sequencer, syncing follower nodes, RocksDB blockchain storage, AppChainBuilder, or building a domain-specific chain with .NET/C#.

Implement Sign-In with Ethereum (SIWE / EIP-4361) authentication in Blazor with JWT tokens, session management, and AuthorizeView (.NET/C#). Use this skill when the user asks about SIWE, Sign-In with Ethereum, Blazor authentication with Ethereum wallets, JWT with SIWE, EthereumAuthenticationStateProvider, or wallet-based login.

Connect browser wallets in Blazor using EIP-6963, MetaMask, or WalletConnect/Reown (.NET/C#). Use this skill when the user asks about connecting wallets in Blazor, EIP-6963, MetaMask Blazor integration, WalletConnect, Reown AppKit, or browser wallet discovery in a Blazor web app.

Embed a full Blazor blockchain explorer with block/transaction browsing, ABI-decoded contract interaction, token pages, EVM debugger, and MUD World browser (.NET/C#). Use this skill when the user asks about blockchain explorer, block explorer, embedding explorer UI, contract interaction UI, EVM debugger, or MUD browser.

Index blockchain data (blocks, transactions, logs, tokens) to PostgreSQL/SqlServer/SQLite with progress tracking, reorg handling, and hosted services (.NET/C#). Use this skill when the user asks about blockchain indexing, block processing, event log crawling, database storage for blockchain data, token transfer indexing, balance aggregation, or chain reorganisation handling.

Discover EVM chains, RPC endpoints, native currencies, block explorers, and faucets using the Chainlist registry via Nethereum.DataServices

Interact with the Circles UBI protocol using Nethereum (.NET/C#). Use this skill whenever the user asks about Circles protocol, Universal Basic Income, CRC tokens, Circles balances, trust relationships, personal minting, demurrage tokens, or any Circles UBI interaction on Gnosis Chain with C# or .NET.

Sign Ethereum transactions with AWS KMS or Azure Key Vault HSMs using Nethereum. Use this skill whenever the user asks about AWS KMS Ethereum signing, Azure Key Vault signing, cloud HSM, managed key signing, serverless wallet, key management service, or cloud-based transaction signing in C#/.NET.

Fetch token metadata, prices by contract address or CoinGecko ID, asset platform mappings, and token lists via the CoinGecko API in Nethereum.DataServices

Deploy contracts to deterministic addresses using CREATE2 with Nethereum (.NET). Use this skill whenever the user asks about CREATE2, deterministic deployment, counterfactual addresses, predictable contract addresses, cross-chain same-address deployment, deployment proxies, or address prediction in C#/.NET.

Deploy smart contracts to Ethereum using Nethereum typed deployment handlers (.NET/C#). Use this skill whenever the user asks about deploying a contract, publishing a smart contract, contract deployment, constructor parameters, deployment gas estimation, or getting a contract address after deployment.

Help users run a local Ethereum dev chain, write integration tests, fork networks, debug transactions, or replace Hardhat/Anvil with Nethereum DevChain (.NET). Use this skill when the user mentions local Ethereum node, dev chain, test chain, Hardhat replacement, Anvil replacement, in-process blockchain, snapshot/revert, debug_traceTransaction, account impersonation, or anything involving a local EVM for development and testing with C# or .NET.

Query and transfer ERC-20 tokens using Nethereum's built-in typed services (.NET/C#). Use this skill whenever the user asks about ERC-20 tokens, token balances, token transfers, token approvals, allowances, token metadata (name, symbol, decimals), or any fungible token interaction with C# or .NET.

Query Etherscan V2 API for gas prices, account transactions, balances, token transfers, contract source code, and compilation metadata via Nethereum.DataServices

Help users simulate Ethereum transactions, preview state changes, decode call trees, extract token transfers, decode revert reasons, debug EVM execution, or disassemble bytecode using Nethereum.EVM (.NET). Use this skill whenever the user mentions transaction simulation, transaction preview, state changes preview, call tracing, EVM debugging, bytecode execution, bytecode disassembly, opcode analysis, revert decoding, custom error decoding, ERC-20 simulation, balance change extraction, or anything involving local EVM execution with C# or .NET.

Execute multi-signature transactions through Gnosis Safe (Safe) using Nethereum (.NET/C#). Use this skill whenever the user asks about multi-sig wallets, Gnosis Safe, Safe transactions, SafeAccount, multi-signature signing, MultiSend, or executing contract calls through a Safe with C# or .NET.

Sign Ethereum transactions with Ledger and Trezor hardware wallets using Nethereum. Use this skill whenever the user asks about Ledger signing, Trezor signing, hardware wallet integration, HSM device signing, external signers, or hardware security modules for Ethereum in C#/.NET.

Derive multiple Ethereum accounts from a mnemonic seed phrase using Nethereum HD wallets. Use this skill whenever the user asks about mnemonic phrases, seed phrases, BIP-39, BIP-32, BIP-44, HD wallets, deriving accounts from a seed, wallet recovery, 12-word or 24-word phrases, derivation paths, or generating multiple addresses from one key in C#/.NET.

Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum. Use this skill whenever the user asks about encrypting private keys, keystore files, Web3 secret storage, Scrypt encryption, PBKDF2, password-protected keys, key encryption, or loading encrypted wallets in C#/.NET.

Help users initialize and manage an Ethereum beacon chain light client for tracking finalized and optimistic headers. Use this skill whenever the user mentions beacon chain, light client, sync committee, BLS verification, TrustedHeaderProvider, LightClientService, consensus layer tracking, header staleness, or wants to follow the Ethereum consensus without a full node.

Help users work with ERC-7579 modular smart accounts using Nethereum — install and manage validators (ECDSA, multisig, social recovery), executors, hooks, and session keys. Use when the user mentions ERC-7579, modular accounts, smart account modules, validators, executors, session keys, multisig wallet, social recovery, OwnableValidator, ECDSAValidator, SmartSession, or modular smart contract wallets in .NET/C#.

Help users index MUD Store events, process on-chain table mutations, store in PostgreSQL or EF Core, normalise schemas, run continuous sync. Use when users mention MUD indexing, Store events, MUD PostgreSQL, MUD EF Core, StoreEventsLogProcessingService, or building an indexer for MUD World data.

Help users build MUD applications with Nethereum — define tables, generate C# code, interact with World contracts, use the namespace pattern. Use when users mention MUD, autonomous worlds, on-chain structured data, MUD tables, MUD systems, defineWorld, World contract, or any MUD-related development with C# or .NET.

Help users implement Sign-In with Ethereum (EIP-4361) authentication using Nethereum (.NET). Use this skill whenever the user mentions SIWE, sign-in with Ethereum, wallet authentication, EIP-4361, wallet login, crypto authentication, NFT-gated access, RECAP capabilities, or EIP-5573. Also use when building Blazor or ASP.NET apps that need Ethereum-based authentication.

Help users deploy ERC-4337 smart accounts using Nethereum — predict counterfactual addresses with CREATE2, deploy via SmartAccountBuilder, lazy deploy via InitCode, manage EntryPoint deposits. Use when the user mentions deploying a smart account, creating a smart wallet, CREATE2 account address, counterfactual address, SmartAccountBuilder, SimpleAccountFactory, or account factory deployment in .NET/C#.

Interact with Ethereum smart contracts using Nethereum typed DTOs. Use this skill whenever the user asks about deploying contracts, calling contract functions, sending transactions to contracts, decoding events, querying historical state, estimating gas, offline signing, or non-type-safe ABI interaction in C#/.NET.

Build wallet portfolio features with ERC-20 token discovery, multicall balances, CoinGecko pricing, and multi-account scanning (.NET/C#). Use this skill when the user asks about token balances, token portfolios, token prices, token lists, multicall token queries, multi-wallet scanning, or CoinGecko integration.

Manage Uniswap V4 liquidity positions using Nethereum (.NET/C#). Use this skill whenever the user asks about providing liquidity, LP positions, concentrated liquidity, collecting fees, minting/burning positions, rebalancing, or any Uniswap liquidity operation with C# or .NET.

Swap tokens on Uniswap V2/V3/V4 using Nethereum (.NET/C#). Use this skill whenever the user asks about token swaps, DEX trading, Uniswap integration, quoting prices, slippage protection, price impact, Universal Router, Permit2, or any DeFi swap operation with C# or .NET.

Integrate Ethereum into Unity games using Nethereum with async Web3 API, WebGL wallet support via EIP-6963 multi-wallet discovery and MetaMask (.NET/C#). Use this skill when the user asks about Unity blockchain integration, Unity WebGL wallets, Unity MetaMask, Unity Ethereum, Nethereum.Unity, game blockchain, NFT games, or Unity ERC-20 tokens.

Help users verify Ethereum state (balances, nonces, storage, code) without trusting their RPC provider using beacon chain light client proofs. Use this skill whenever the user mentions trustless queries, verified balances, light client verification, proof verification, Merkle proofs for state, eth_getProof, UseVerifiedState, VerifiedStateService, or wants to verify data from an RPC provider they don't trust.