How do I install the Viem skill?

Run npx skillmds@latest add hairyf/viem in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Viem skill do?

TypeScript interface for Ethereum — clients, contracts, accounts, chains, ENS, and utilities. It is listed under Coding & Dev Tools on SkillMD.

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Viem?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

hairyf (@hairyf) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Viem by hairyf — Agent Skill

Name: Viem
Rating: 4.5 (4 reviews)
Author: hairyf

File contents

Skill based on viem, generated 2026-02-09. Docs: https://viem.sh

viem is a TypeScript client for Ethereum: Public/Wallet/Test clients, transports (HTTP, WebSocket, custom), type-safe contract reads/writes, local and JSON-RPC accounts, chains, ENS, and encoding/unit helpers.

Core References

Topic	Description	Reference
Clients & Transports	Public/Wallet/Test clients, HTTP/WS/custom transports, multicall batching	core-clients-transports
Contract	getContract, readContract, writeContract, simulateContract	core-contract
Accounts	Local (privateKey, mnemonic) and JSON-RPC accounts, extend with publicActions	core-accounts

Features

Chains & ENS

Topic	Description	Reference
Chains	Built-in chains (viem/chains), defineChain for custom	features-chains
ENS	getEnsAddress, getEnsName, getEnsAvatar, normalize	features-ens

Utilities

Topic	Description	Reference
Utilities	getAddress, parseEther/formatEther, encoding, keccak256, ABI helpers	features-utilities
ABI	parseAbi, encodeAbiParameters, decodeAbiParameters, getAbiItem	features-abi

Auth

Topic	Description	Reference
SIWE	createSiweMessage, verifySiweMessage, parseSiweMessage, validateSiweMessage	features-siwe

Public data

Topic	Description	Reference
Public Actions	getBalance, getLogs, getBlock, estimateGas, waitForTransactionReceipt, watchEvent	features-public-actions

Best Practices

Topic	Description	Reference
Contract & Errors	Simulate before write, typed error handling, RPC/security	best-practices-contract-and-errors

External Links

---name: viemdescription: TypeScript interface for Ethereum — clients, contracts, accounts, chains, ENS, and utilities.---> Skill based on viem, generated 2026-02-09. Docs: https://viem.shviem is a TypeScript client for Ethereum: Public/Wallet/Test clients, transports (HTTP, WebSocket, custom), type-safe contract reads/writes, local and JSON-RPC accounts, chains, ENS, and encoding/unit helpers.## Core References| Topic | Description | Reference ||-------|-------------|-----------|| Clients & Transports | Public/Wallet/Test clients, HTTP/WS/custom transports, multicall batching | [core-clients-transports](references/core-clients-transports.md) || Contract | getContract, readContract, writeContract, simulateContract | [core-contract](references/core-contract.md) || Accounts | Local (privateKey, mnemonic) and JSON-RPC accounts, extend with publicActions | [core-accounts](references/core-accounts.md) |## Features### Chains & ENS| Topic | Description | Reference ||-------|-------------|-----------|| Chains | Built-in chains (viem/chains), defineChain for custom | [features-chains](references/features-chains.md) || ENS | getEnsAddress, getEnsName, getEnsAvatar, normalize | [features-ens](references/features-ens.md) |### Utilities| Topic | Description | Reference ||-------|-------------|-----------|| Utilities | getAddress, parseEther/formatEther, encoding, keccak256, ABI helpers | [features-utilities](references/features-utilities.md) || ABI | parseAbi, encodeAbiParameters, decodeAbiParameters, getAbiItem | [features-abi](references/features-abi.md) |### Auth| Topic | Description | Reference ||-------|-------------|-----------|| SIWE | createSiweMessage, verifySiweMessage, parseSiweMessage, validateSiweMessage | [features-siwe](references/features-siwe.md) |### Public data| Topic | Description | Reference ||-------|-------------|-----------|| Public Actions | getBalance, getLogs, getBlock, estimateGas, waitForTransactionReceipt, watchEvent | [features-public-actions](references/features-public-actions.md) |## Best Practices| Topic | Description | Reference ||-------|-------------|-----------|| Contract & Errors | Simulate before write, typed error handling, RPC/security | [best-practices-contract-and-errors](references/best-practices-contract-and-errors.md) |## External Links- [viem.sh](https://viem.sh)- [wevm/viem GitHub](https://github.com/wevm/viem)

Frequently asked questions

Viem