generated: '2026-08-30' method: searched source: >- Registry sweeps of npm (registry.npmjs.org package metadata), plus the provider's own Developers HUB (https://developers.sandbox.game/unity/getting-started/) and the thesandboxgame GitHub organization (https://api.github.com/orgs/thesandboxgame/repos). summary: first_party_sdk_count: 1 first_party_package_count: 9 third_party_package_count: 0 note: >- Two distinct distribution stories. (1) The Developer SDK for Unity is a REAL first-party client library for the Developers API, but it is NOT published to any package registry - The Sandbox ships it as a Unity Package Manager Git dependency pointed at a redistribution repo, so it has no registry metadata endpoint and no semver tag on GitHub. Its version is read from the provider's own changelog page instead. (2) Eight npm packages under the @sandbox-smart-contracts scope are first-party publications of The Sandbox's on-chain contracts; they are Solidity libraries, not clients for the REST API, and every one of them last published in 2023 or 2024. A JavaScript SDK is announced as planned and does not exist yet. packages: - language: csharp registry: git name: Sandbox Developer SDK for Unity url: https://developers.sandbox.game/unity/ install: >- Unity Editor > Window > Package Manager > + > Add package from Git URL: git@github.com:thesandboxgame/tsb-developers-sdk-unity-redist.git repository: https://github.com/thesandboxgame/tsb-developers-sdk-unity-redist official: true version: 1.1.0 published: null version_source: https://developers.sandbox.game/unity/changelog/ note: >- version 1.1.0 is the newest heading in the provider's published SDK changelog. `published:` is null because there is no dated release for it anywhere we can read: the redistribution repo has ZERO GitHub releases and ZERO tags (checked 2026-08-30 via the GitHub API), and a UPM Git dependency has no registry metadata endpoint. The repo's last push was 2025-07-03, and the sample path shipped in the docs still reads ".../Sandbox Developer SDK for Unity/1.0.1/...", one minor behind the changelog. A consumer adding this Git URL gets whatever is on `master` at the moment they add it - the distribution is unpinned and undated, so nobody downstream can tell what version they are running either. description: >- Official Unity client for The Sandbox Developers API. Handles OAuth authorization and token refresh, then exposes user, avatar, asset, collection, library, inventory, LAND, SAND balance and social (followers/follows) calls, plus runtime GLTF asset preload and instantiation. Targets Windows, macOS, WebGL, Android and iOS; async surface built on UniTask. - language: solidity registry: npm name: '@sandbox-smart-contracts/asset' url: https://www.npmjs.com/package/@sandbox-smart-contracts/asset install: npm install @sandbox-smart-contracts/asset repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.1.0 published: '2024-01-12' license: MIT description: Asset and Catalyst L2 smart contracts. source: https://registry.npmjs.org/@sandbox-smart-contracts/asset - language: solidity registry: npm name: '@sandbox-smart-contracts/land' url: https://www.npmjs.com/package/@sandbox-smart-contracts/land install: npm install @sandbox-smart-contracts/land repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 0.0.3 published: '2024-01-25' description: LAND smart contract. source: https://registry.npmjs.org/@sandbox-smart-contracts/land - language: solidity registry: npm name: '@sandbox-smart-contracts/dependency-operator-filter' url: https://www.npmjs.com/package/@sandbox-smart-contracts/dependency-operator-filter install: npm install @sandbox-smart-contracts/dependency-operator-filter repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.0.2 published: '2024-04-22' description: Implementation for OpenSea's operator filter. source: https://registry.npmjs.org/@sandbox-smart-contracts/dependency-operator-filter - language: solidity registry: npm name: '@sandbox-smart-contracts/marketplace' url: https://www.npmjs.com/package/@sandbox-smart-contracts/marketplace install: npm install @sandbox-smart-contracts/marketplace repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.0.1 published: '2023-11-30' license: ISC description: Contracts that let users buy or sell assets (NFTs) on The Sandbox marketplace. source: https://registry.npmjs.org/@sandbox-smart-contracts/marketplace - language: solidity registry: npm name: '@sandbox-smart-contracts/dependency-royalty-management' url: https://www.npmjs.com/package/@sandbox-smart-contracts/dependency-royalty-management install: npm install @sandbox-smart-contracts/dependency-royalty-management repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.0.2 published: '2023-10-20' description: The Sandbox royalty implementation. source: https://registry.npmjs.org/@sandbox-smart-contracts/dependency-royalty-management - language: solidity registry: npm name: '@sandbox-smart-contracts/dependency-metatx' url: https://www.npmjs.com/package/@sandbox-smart-contracts/dependency-metatx install: npm install @sandbox-smart-contracts/dependency-metatx repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.0.1 published: '2023-10-20' license: MIT description: ERC-2771 handler used to implement meta-transactions. source: https://registry.npmjs.org/@sandbox-smart-contracts/dependency-metatx - language: solidity registry: npm name: '@sandbox-smart-contracts/giveaway' url: https://www.npmjs.com/package/@sandbox-smart-contracts/giveaway install: npm install @sandbox-smart-contracts/giveaway repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 1.0.0 published: '2023-09-14' license: MIT description: Contracts used for token claims. source: https://registry.npmjs.org/@sandbox-smart-contracts/giveaway - language: solidity registry: npm name: '@sandbox-smart-contracts/core' url: https://www.npmjs.com/package/@sandbox-smart-contracts/core install: npm install @sandbox-smart-contracts/core repository: https://github.com/thesandboxgame/sandbox-smart-contracts official: true version: 0.0.1 published: '2023-07-14' license: MIT description: Core smart contracts for The Sandbox. source: https://registry.npmjs.org/@sandbox-smart-contracts/core announced_not_shipped: - name: JavaScript SDK status: planned source: https://developers.sandbox.game/what-is/ note: >- The Developers HUB tool table lists "JavaScript SDK - Lightweight helper tools to integrate Sandbox features into web apps" with status "Planned", and the Getting Started page repeats "JavaScript SDK - (coming soon)". No such package exists on npm as of 2026-08-30. registries_checked: - registry: npm result: 8 first-party packages found under the @sandbox-smart-contracts scope; no REST client library - registry: pypi result: none - registry: rubygems result: none - registry: crates.io result: none - registry: nuget result: none - registry: maven-central result: none - registry: pkg.go.dev result: none - registry: openupm result: not published; the Unity SDK is a Git-URL UPM dependency decay_signal: note: >- Every first-party npm package predates 2025. The newest is @sandbox-smart-contracts/dependency-operator-filter at 2024-04-22, and the newest package that is not a dependency shim is @sandbox-smart-contracts/land at 2024-01-25. The contracts monorepo itself is still active (last push 2026-08-25), so the packages have fallen behind the source, not the other way round: nine of the seventeen package directories in that repo (avatar, batch-transfers, faucets, game-passes, land-sale, oft-sand, sandbox-forwarder, deploy, example-hardhat) have never been published to npm at all.