# @lukso/lsp4-contracts

> Package for the LSP4 Digital Asset Metadata standard

Latest version **0.17.3** (published 2026-05-25) · Apache-2.0 license · 0 weekly downloads

## Install

```sh
npm install @lukso/lsp4-contracts
pnpm add @lukso/lsp4-contracts
yarn add @lukso/lsp4-contracts
bun add @lukso/lsp4-contracts
```

## Health

**Score 65/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; high quality score.

Warnings: low downloads; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.17.3 |
| Published | 2026-05-25 |
| First published | 2024-03-07 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 2 |
| Unpacked size | 93 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 88 |
| Maintainers | frozeman, lukso-network |
| Keywords | LUKSO, LSP, Blockchain, Standards, Smart Contracts, Ethereum, EVM, Solidity |

## Links

- npm: https://www.npmjs.com/package/@lukso/lsp4-contracts
- Repository: https://github.com/lukso-network/lsp-smart-contracts
- Homepage: https://github.com/lukso-network/lsp-smart-contracts#readme
- Issues: https://github.com/lukso-network/lsp-smart-contracts/issues
- npm.io page: https://npm.io/package/@lukso/lsp4-contracts

## Dependencies (2)

- [@lukso/lsp2-contracts](https://npm.io/package/@lukso/lsp2-contracts.md) ~0.16.0
- [@erc725/smart-contracts-v8](https://npm.io/package/@erc725/smart-contracts-v8.md) npm:@erc725/smart-contracts@8.0.1

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## Recent versions

- 0.17.3 (latest) — 2026-05-25
- 0.15.0-rc.5 (rc) — 2024-04-03
- 0.16.7 — 2025-06-19
- 0.16.5 — 2025-06-19
- 0.16.4 — 2025-06-18
- 0.16.3 — 2025-04-19
- 0.16.2 — 2025-01-14
- 0.15.0 — 2024-04-05
- 0.15.0-rc.4 — 2024-04-02
- 0.15.0-rc.1 — 2024-03-22
- 0.15.0-rc.0 — 2024-03-07

## README

# LSP4 Digital Asset Metadata · [![npm version](https://img.shields.io/npm/v/@lukso/lsp4-contracts.svg?style=flat)](https://www.npmjs.com/package/@lukso/lsp4-contracts)

npm package for the LSP4 Digital Asset Metadata standard (token metadata schema and data keys).

## Installation

```console
npm install @lukso/lsp4-contracts
```

## Available Constants & Types

The `@lukso/lsp4-contracts` npm package contains useful constants such as ERC725Y data keys related to the LSP4 Standard. You can import and access them as follows.

In JavaScript.

```javascript
import {
  LSP4_TOKEN_TYPES,
  LSP4SupportedStandard,
  LSP4DataKeys,
  LSP4DigitalAssetMetadataJSON,
  LSP4DigitalAssetMetadata,
  LinkMetadata,
  ImageMetadata,
  AssetMetadata,
  AttributeMetadata,
} from "@lukso/lsp4-contracts";
```

In Solidity.

<!-- prettier-ignore -->
```solidity
import {
  _LSP4_TOKEN_TYPE_TOKEN,
  _LSP4_TOKEN_TYPE_NFT,
  _LSP4_TOKEN_TYPE_COLLECTION,
  _LSP4_SUPPORTED_STANDARDS_KEY,
  _LSP4_SUPPORTED_STANDARDS_VALUE,
  _LSP4_TOKEN_NAME_KEY,
  _LSP4_TOKEN_SYMBOL_KEY,
  _LSP4_TOKEN_TYPE_KEY,
  _LSP4_CREATORS_ARRAY_KEY,
  _LSP4_CREATORS_MAP_KEY_PREFIX,
  _LSP4_METADATA_KEY
} from "@lukso/lsp4-contracts/contracts/LSP4Constants.sol";
```

---
_Source: https://npm.io/package/@lukso/lsp4-contracts · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._