generated: '2026-08-05' method: searched source: https://packages.vrchat.com/official?download notes: 'VRChat ships no client SDK for its web API — it publishes no REST specification and states in its Creator Guidelines that it does not support third-party API applications. The first-party package surface is the Unity creator toolchain, distributed as VPM (VRChat Package Manager) packages from VRChat''s own listing host, plus two .NET tools on NuGet. The widely used npm package "vrchat" and the vrchatapi/* client libraries are COMMUNITY projects, not VRChat releases, and are recorded under third_party below rather than as official packages.' registries: - name: VPM (VRChat Package Manager) kind: first-party listing official_listing: https://packages.vrchat.com/official?download curated_listing: https://packages.vrchat.com/curated?download canonical_index: https://vrchat.github.io/packages/index.json listing_id: com.vrchat.repos.official docs: https://vcc.docs.vrchat.com/vpm/ x-evidence: fetched: '2026-08-05' url: https://packages.vrchat.com/official?download http_status: 200 packages: - language: csharp registry: vpm name: com.vrchat.base display_name: VRChat SDK - Base description: Base for VRChat SDK latest_version: 3.10.4 url: https://packages.vrchat.com/official?download install: vpm add package com.vrchat.base official: true - language: csharp registry: vpm name: com.vrchat.worlds display_name: VRChat SDK - Worlds description: Tools for creating interactive VRChat worlds using Udon latest_version: 3.10.4 url: https://packages.vrchat.com/official?download install: vpm add package com.vrchat.worlds official: true - language: csharp registry: vpm name: com.vrchat.avatars display_name: VRChat SDK - Avatars description: Our powerful Avatars 3.0 System latest_version: 3.10.4 url: https://packages.vrchat.com/official?download install: vpm add package com.vrchat.avatars official: true - language: csharp registry: vpm name: com.vrchat.core.vpm-resolver display_name: VRChat Package Resolver Tool description: Tool to Download VPM Packages latest_version: 0.1.10 url: https://packages.vrchat.com/official?download install: vpm add package com.vrchat.core.vpm-resolver official: true - language: csharp registry: nuget name: vrchat.vpm.cli display_name: VRChat VPM CLI description: Command-line interface for the VRChat Package Manager and Creator Companion latest_version: 0.1.29-beta.1 url: https://www.nuget.org/packages/vrchat.vpm.cli install: dotnet tool install --global vrchat.vpm.cli docs: https://vcc.docs.vrchat.com/vpm/cli/ official: true - language: csharp registry: nuget name: VRChat.OSCQuery display_name: VRChat OSCQuery Library description: OSCQuery library in .NET, used to advertise and discover OSC services for VRChat latest_version: 0.0.7 url: https://www.nuget.org/packages/VRChat.OSCQuery install: dotnet add package VRChat.OSCQuery source: https://github.com/vrchat-community/vrc-oscquery-lib official: true third_party: - language: javascript registry: npm name: vrchat description: VRChat.js — community JavaScript SDK for the undocumented VRChat web API url: https://www.npmjs.com/package/vrchat official: false note: Maintained by community members (vrchatapi / VRChat.community), not by VRChat Inc. VRChat's Creator Guidelines state it does not support third-party API applications. - language: multiple registry: github name: vrchatapi/* description: Community-driven VRChat API documentation and generated client libraries (C#, Kotlin, Python, Rust, JS, Dart, PHP) url: https://github.com/vrchatapi official: false note: Reverse-engineered. Not published, endorsed, or supported by VRChat Inc.; recorded here for provenance only and deliberately NOT harvested into openapi/. coverage: official_packages: 6 registries: [vpm, nuget] languages: [csharp] web_api_sdk: false