Summary
This is your go-to for writing TypeScript that talks to Ethereum and other EVM chains outside of React apps. Think Node scripts, CLI tools, or backend services that need to read contracts, send transactions, or watch events. The skill hammers home the critical patterns like using `as const` on ABIs for type safety, always simulating contracts before writes, and handling BigInt correctly for token amounts. It's built around viem 2.x, which is genuinely cleaner than the old ethers.js patterns. If you're building a wagmi/React app, skip this and use the wagmi skill instead. This is strictly for non-hook blockchain code.
Install to Claude Code
npx -y skills add 0xsardius/onchain-typescript-skills --skill viem --agent claude-codeInstalls into .claude/skills of the current project.
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Files
SKILL.md
Select a file.
Featured
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Categories
First SeenJun 3, 2026
