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JavaScript library for Starknet

Teach your AI coding agent starknet.js

AI training data is outdated — install the starknet.js skill to give your coding agent accurate, up-to-date guidance. Works with Claude Code, Codex, Cursor, Gemini CLI, and any other agent supporting the open skill standard.

npx skills add starknet-io/starknet.js

or copy the skill files directly:

mkdir -p ~/.claude/skills/starknet-js && curl -s --output-dir ~/.claude/skills/starknet-js --remote-name-all "https://raw.githubusercontent.com/starknet-io/starknet.js/develop/skills/starknet-js/{SKILL.md,calldata.md,interacting.md}"

This command installs into Claude Code's skills folder — adapt the target directory for other agents.

Scalability and Integrity

Scalability and Integrity

Starknet supports scale, while preserving the security of L1 Ethereum by producing STARK proofs off-chain, and then verifying those proofs on-chain.

General Purpose

General Purpose

On Starknet, developers can easily deploy any business logic using Starknet Contracts.

Composability

Composability

Starknet provides Ethereum-level composability – facilitating easy development and innovation.