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wevm/viem

TypeScript Interface for Ethereum

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Summary Information

Updated 39 minutes ago
Type:Library / SDKCategory(s):Smart Contracts, DeFi & WalletsAPIs, GraphQL & RPCBlockchain & Web3
Added to GitGenius on September 19th, 2026
Created on July 22nd, 2022
Open Issues & Pull Requests: 13 (+0)
GitHub issues: Enabled
Number of forks: 1,561
Total Stargazers: 3,579 (+0)
Total Subscribers: 26 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 4.6 hours
Mean response time: 6.5 days
90th percentile: 9.6 days
Tracked items: 248

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Maintainer activity

2 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 11, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits.

How this project is maintained

About 10% of issues opened in the past year have never received a reply. 94% of issues opened in the past year have since been closed. Three people close 94% of everything that gets resolved.

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Issue Activity (beta)

Open issues: 2
New in 7 days: 5
Closed in 7 days: 5
Avg open age: 30 days
Stale 30+ days: 0
Stale 90+ days: 0

Recent activity

Opened in 7 days: 4
Closed in 7 days: 4
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • needs reproduction (54)
  • A: Docs (23)
  • Good First Issue (9)
  • A: CI (1)
  • T: Bug (1)
  • github_actions (1)

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Detailed Description

Viem is a TypeScript interface for Ethereum that provides abstractions over the JSON-RPC API to simplify blockchain development.

The tool solves the problem of verbose and error-prone Ethereum interaction by offering first-class APIs for smart contract interaction, ABI utilities for encoding and decoding, and wallet integration for browser extensions, WalletConnect, and private keys. It uses native JavaScript BigInt instead of requiring large BigNumber libraries, reducing dependencies and improving performance. The language and terminology align closely with official Ethereum standards, making the learning curve gentler for developers familiar with Ethereum concepts.

Viem suits TypeScript projects that need type-safe Ethereum interactions with strong IDE support. Developers should choose it if they value inferred types from ABIs and EIP-712 typed data, or if they're building applications that require seamless wallet integration. The tool includes first-class support for development environments like Anvil, Hardhat, and Ganache, and can run test suites against forked Ethereum networks, making it particularly valuable for comprehensive testing workflows.

The project maintains active development with consistent code quality standards. The maintainers prioritize comprehensive test coverage and regularly merge contributions that expand functionality and fix issues. Development activity shows sustained engagement with the codebase through ongoing refinements and feature additions.