VRChat

VRChat is a social virtual-reality platform where users create avatars and worlds in Unity with the first-party VRChat SDK (Worlds, Avatars, Udon and UdonSharp), publish them through the VRChat Package Manager, and meet inside a persistent multi-user universe playable on PC VR, standalone headsets and desktop. VRChat operates a live web API at api.vrchat.cloud that powers its own client and website, but it explicitly does not document, version, or support that API for public use: its Creator Guidelines state endpoints may be added, removed, or changed with no warning. The machine-readable surface VRChat does publish is the creator toolchain — the VPM package listings at packages.vrchat.com, the vpm CLI on NuGet, the OSC and OSCQuery interfaces for external avatar and input control, an llms.txt documentation index, and a public Statuspage.

VRChat publishes 2 APIs on the APIs.io network. Tagged areas include Company, Virtual Reality, Social Networks, Gaming, and Metaverse.

VRChat’s developer surface includes documentation, getting-started guide, engineering blog, support, signup flow, changelog, CLI, and 20 more developer resources.

31.6/100 thin ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
2 APIs
CompanyVirtual RealitySocial NetworksGamingMetaverseAvatarsUnityCreator EconomyUser Generated ContentOSC

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 31.6/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 10.9 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 4.8 / 13
Governance 1.5 / 12
Discoverability 7.6 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/vrchat: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

VRChat Web API

The HTTP API at api.vrchat.cloud/api/1 that backs the VRChat client and the vrchat.com website — authentication, users, friends, worlds, avatars, instances, groups, files and no...

VRChat Package Manager (VPM) Listing API

The VRChat Package Manager repository API — machine-readable VPM listing documents served over HTTP that enumerate every first-party VRChat SDK package (Base, Worlds, Avatars, P...

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Vrchat Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: vrchat
name: VRChat
description: 'VRChat is a social virtual-reality platform where users create avatars and worlds in Unity with the first-party
  VRChat SDK (Worlds, Avatars, Udon and UdonSharp), publish them through the VRChat Package Manager, and meet inside a persistent
  multi-user universe playable on PC VR, standalone headsets and desktop. VRChat operates a live web API at api.vrchat.cloud
  that powers its own client and website, but it explicitly does not document, version, or support that API for public use:
  its Creator Guidelines state endpoints may be added, removed, or changed with no warning. The machine-readable surface VRChat
  does publish is the creator toolchain — the VPM package listings at packages.vrchat.com, the vpm CLI on NuGet, the OSC and
  OSCQuery interfaces for external avatar and input control, an llms.txt documentation index, and a public Statuspage.'
image: https://static1.squarespace.com/static/5f0770791aaf57311515b23d/t/6508c787b8ced41ca3404f36/1718212268632/VRC_Logo.png?format=1500w
url: https://raw.githubusercontent.com/api-evangelist/vrchat/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Company
- Virtual Reality
- Social Networks
- Gaming
- Metaverse
- Avatars
- Unity
- Creator Economy
- User Generated Content
- OSC
apis:
- aid: vrchat:vrchat-web-api
  name: VRChat Web API
  description: The HTTP API at api.vrchat.cloud/api/1 that backs the VRChat client and the vrchat.com website — authentication,
    users, friends, worlds, avatars, instances, groups, files and notifications. VRChat operates this API publicly but explicitly
    does not document it, publish a machine-readable specification for it, or support third-party use of it. The only first-party
    guidance is the API section of the Creator Guidelines, which sets User-Agent, rate-limit and credential-handling rules
    for anyone who calls it anyway. The unauthenticated /api/1/config endpoint returns 200 with JSON and is the surface probed
    for this profile.
  humanURL: https://hello.vrchat.com/creator-guidelines
  baseURL: https://api.vrchat.cloud/api/1
  tags:
  - Virtual Reality
  - Social Networks
  - Gaming
  x-support: undocumented-unsupported
  x-evidence:
    fetched: '2026-08-05'
    url: https://api.vrchat.cloud/api/1/config
    http_status: 200
    content_type: application/json
    note: Live anonymous endpoint. No OpenAPI/Swagger published — /openapi.json, /openapi.yaml, /swagger.json, /api-docs,
      /docs and /redoc all return 404 on api.vrchat.cloud.
  properties:
  - type: Conventions
    url: conventions/vrchat-conventions.yml
  - type: RateLimits
    url: conventions/vrchat-conventions.yml
- aid: vrchat:vrchat-vpm
  name: VRChat Package Manager (VPM) Listing API
  description: The VRChat Package Manager repository API — machine-readable VPM listing documents served over HTTP that enumerate
    every first-party VRChat SDK package (Base, Worlds, Avatars, Package Resolver) and the curated community listing, with
    every published version, its display name, description, Unity requirements and dependency graph. This is the registry
    the VRChat Creator Companion and the vpm CLI read, and it is the one fully documented, fully machine-readable public API
    surface VRChat ships.
  humanURL: https://vcc.docs.vrchat.com/vpm/
  baseURL: https://packages.vrchat.com
  tags:
  - Package Management
  - Unity
  - Software Development
  x-evidence:
    fetched: '2026-08-05'
    url: https://packages.vrchat.com/official?download
    http_status: 200
    content_type: application/json
  properties:
  - type: Documentation
    url: https://vcc.docs.vrchat.com/vpm/
  - type: Packages
    url: packages/vrchat-packages.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/vrchat-domain-security.yml
- type: Website
  url: https://hello.vrchat.com/
- type: Application
  url: https://vrchat.com/home
- type: DeveloperPortal
  url: https://creators.vrchat.com/
- type: Documentation
  url: https://docs.vrchat.com/
- type: GettingStarted
  url: https://creators.vrchat.com/sdk/
- type: Blog
  url: https://hello.vrchat.com/blog
- type: Support
  url: https://ask.vrchat.com/
- type: GitHubOrganization
  url: https://github.com/vrchat-community
- type: SignUp
  url: https://vrchat.com/home/register
- type: Login
  url: https://vrchat.com/home/login
- type: TermsOfService
  url: https://hello.vrchat.com/legal
- type: PrivacyPolicy
  url: https://hello.vrchat.com/privacy
- type: CreatorGuidelines
  url: https://hello.vrchat.com/creator-guidelines
- type: CommunityGuidelines
  url: https://hello.vrchat.com/community-guidelines
- type: FeatureRequests
  url: https://feedback.vrchat.com/
- type: StatusPage
  url: https://status.vrchat.com
- type: ChangeLog
  url: https://docs.vrchat.com/docs/recent-releases
- type: LLMsTxt
  url: llms/vrchat-llms.txt
- type: Packages
  url: packages/vrchat-packages.yml
- type: SDKs
  url: packages/vrchat-packages.yml
- type: CLI
  url: cli/vrchat-cli.yml
- type: Sandbox
  url: sandbox/vrchat-sandbox.yml
- type: Conventions
  url: conventions/vrchat-conventions.yml
- type: Lifecycle
  url: lifecycle/vrchat-lifecycle.yml
- type: Conformance
  url: conformance/vrchat-conformance.yml
- type: ChangeLog
  url: changelog/vrchat-changelog.yml
x-enrichment:
  date: '2026-08-05'
  status: enriched
  artifacts_added: 10
  pass: local-v1
x-coverage:
  state: covered
  reason: no-machine-readable-spec
  detail: VRChat operates a live public web API at api.vrchat.cloud (the anonymous /api/1/config endpoint returns 200 JSON)
    but states in its own Creator Guidelines that it does not document that API for public usage and that endpoints may be
    added, removed, or relocated with no warning — so no OpenAPI, no auth reference, and no error catalog exist to harvest,
    and the widely circulated vrchatapi/* specs are community reverse-engineering that this profile deliberately does not
    attribute to VRChat.
  evidence:
  - url: https://api.vrchat.cloud/api/1/config
    status: 200
  - url: https://api.vrchat.cloud/openapi.json
    status: 404
  - url: https://hello.vrchat.com/creator-guidelines
    status: 200
  - url: https://docs.vrchat.com/llms.txt
    status: 200
  - url: https://packages.vrchat.com/official?download
    status: 200
  checked: '2026-08-05'