# @three-ws/avatar-schema > JSON Schema and validator for three.ws on-chain avatar manifests — the canonical, hash-anchored format any cross-chain client can use to resolve an avatar. @three-ws/avatar-schema is a JavaScript library from three.ws. Install: `npm install @three-ws/avatar-schema`. ## Docs - [README](https://github.com/nirholas/avatar-schema/blob/main/README.md): install, configuration, full reference - [Documentation site](https://nirholas.github.io/avatar-schema/): the README as a web page - [Full text for LLMs](https://nirholas.github.io/avatar-schema/llms-full.txt): README inlined - [AGENTS.md](https://github.com/nirholas/avatar-schema/blob/main/AGENTS.md): guidance for coding agents ## Project - [Source](https://github.com/nirholas/avatar-schema) - [npm](https://www.npmjs.com/package/@three-ws/avatar-schema) - [three.ws](https://three.ws): the platform this is part of - [Issues](https://github.com/nirholas/avatar-schema/issues)