SideQuest

SideQuest is a VR content-discovery platform and independent app store for Meta Quest, PCVR, Pico, Magic Leap and WebXR headsets — the home of sideload-only, early-access and indie VR apps and games, plus tools to help users get more from their VR headset. SideQuest operates a public REST API (api.sidequestvr.com) for browsing the app catalog and reading user profiles and achievements, secured with OAuth 2.0 bearer tokens and a device-style short-code login. Backed by GV.

SideQuest publishes 5 API contracts indexed on the APIs.io network, including Apps API, Developers API, Users API, and 2 more. Tagged areas include Company, Consumer, Virtual Reality, Extended Reality, and Gaming.

The SideQuest catalog on APIs.io includes 1 Spectral governance ruleset.

SideQuest’s developer surface includes engineering blog, authentication, documentation, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

28.5/100 thin ▬ flat Agent 22/100 agent aware Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 2 Agent Skills

Company Consumer Virtual Reality Extended Reality Gaming App Store Developers

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 28.5/100 · thin

Contract Quality 8.6 / 19

Developer Ergonomics 4.9 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 32.7 — up to +13.5 composite points
Contract Quality scores 45.9 — up to +13.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/sidequest/apis.yml: open an issue on github.com/api-evangelist/sidequest to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
XR & Graphics (XR, 3D, GPU graphics)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

SideQuest Apps API

The Apps API from SideQuest — 1 operation(s) for apps.

SideQuest Developers API

The Developers API from SideQuest — 1 operation(s) for developers.

SideQuest Users API

The Users API from SideQuest — 2 operation(s) for users.

SideQuest UsersApps API

The UsersApps API from SideQuest — 1 operation(s) for usersapps.

SideQuest O Auth2 API

The OAuth2 API from SideQuest — 3 operation(s) for oauth2.

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

SideQuest Apps API

OPEN COLLECTION

SideQuest Apps Developers API

OPEN COLLECTION

SideQuest Apps OAuth2 API

OPEN COLLECTION

SideQuest Apps Users API

OPEN COLLECTION

SideQuest Apps UsersApps API

OPEN COLLECTION

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Log a user in and read their app achievements

AGENT SKILL

Search the SideQuest VR app catalog

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SideQuest API Rules

59 rules · 55 errors 2 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Sidequest Openapi Overlay

4 actions · update · sidequest-openapi.json

GENERATED

Security Posture 2

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

Sidequest Authentication

http · 1 scheme

SECURITY

Sidequest Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sidequest Scopes

13 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: sidequest
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sidequest.png
name: SideQuest
description: SideQuest is a VR content-discovery platform and independent app store for Meta Quest, PCVR, Pico, Magic Leap
  and WebXR headsets — the home of sideload-only, early-access and indie VR apps and games, plus tools to help users get more
  from their VR headset. SideQuest operates a public REST API (api.sidequestvr.com) for browsing the app catalog and reading
  user profiles and achievements, secured with OAuth 2.0 bearer tokens and a device-style short-code login. Backed by GV.
url: https://raw.githubusercontent.com/api-evangelist/sidequest/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Consumer
- Virtual Reality
- Extended Reality
- Gaming
- App Store
- Developers
tags_raw:
- Company
- Consumer
- Virtual Reality
- VR
- XR
- Gaming
- App Store
- Developers
apis:
- aid: sidequest:sidequest-apps-api
  name: SideQuest Apps API
  description: The Apps API from SideQuest — 1 operation(s) for apps.
  humanURL: https://api.sidequestvr.com/docs
  baseURL: https://api.sidequestvr.com
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/sidequest-apps-api-openapi.yml
  - type: APIReference
    url: https://api.sidequestvr.com/docs
- aid: sidequest:sidequest-developers-api
  name: SideQuest Developers API
  description: The Developers API from SideQuest — 1 operation(s) for developers.
  humanURL: https://api.sidequestvr.com/docs
  baseURL: https://api.sidequestvr.com
  tags:
  - Developers
  properties:
  - type: OpenAPI
    url: openapi/sidequest-developers-api-openapi.yml
  - type: APIReference
    url: https://api.sidequestvr.com/docs
- aid: sidequest:sidequest-users-api
  name: SideQuest Users API
  description: The Users API from SideQuest — 2 operation(s) for users.
  humanURL: https://api.sidequestvr.com/docs
  baseURL: https://api.sidequestvr.com
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/sidequest-users-api-openapi.yml
  - type: APIReference
    url: https://api.sidequestvr.com/docs
- aid: sidequest:sidequest-usersapps-api
  name: SideQuest UsersApps API
  description: The UsersApps API from SideQuest — 1 operation(s) for usersapps.
  humanURL: https://api.sidequestvr.com/docs
  baseURL: https://api.sidequestvr.com
  tags:
  - UsersApps
  properties:
  - type: OpenAPI
    url: openapi/sidequest-usersapps-api-openapi.yml
  - type: APIReference
    url: https://api.sidequestvr.com/docs
- aid: sidequest:sidequest-oauth2-api
  name: SideQuest O Auth2 API
  description: The OAuth2 API from SideQuest — 3 operation(s) for oauth2.
  humanURL: https://api.sidequestvr.com/docs
  baseURL: https://api.sidequestvr.com
  tags:
  - OAuth
  - Authentication
  tags_raw:
  - OAuth2
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/sidequest-oauth2-api-openapi.yml
  - type: APIReference
    url: https://api.sidequestvr.com/docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://sidequestvr.com/blog/
  type: Blog
- type: Website
  url: https://www.sidequestvr.com/
- type: OpenAPI
  url: openapi/_original/sidequest-openapi.json
- type: Authentication
  url: authentication/sidequest-authentication.yml
- type: OAuthScopes
  url: scopes/sidequest-scopes.yml
- type: Conventions
  url: conventions/sidequest-conventions.yml
- type: ErrorCatalog
  url: errors/sidequest-problem-types.yml
- type: Lifecycle
  url: lifecycle/sidequest-lifecycle.yml
- type: Conformance
  url: conformance/sidequest-conformance.yml
- type: DataModel
  url: data-model/sidequest-data-model.yml
- type: Overlay
  url: overlays/sidequest-openapi-overlay.yaml
- type: X-MCPServerCandidate
  url: mcp/sidequest-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/sidequest-llms.txt
- type: Packages
  url: packages/sidequest-packages.yml
- type: DomainSecurity
  url: security/sidequest-domain-security.yml
- type: Documentation
  url: https://api.sidequestvr.com/docs
- type: DeveloperPortal
  url: https://sidequestvr.com/developers
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 15
  pass: local-v1

SideQuest API — frequently asked questions

Does SideQuest have an API?

Yes. APIs.io lists 5 APIs from SideQuest, including SideQuest Apps API, SideQuest Developers API and SideQuest Users API, and 2 more.

Is there an OpenAPI specification for the SideQuest API?

Yes. APIs.io indexes 5 OpenAPI specifications for SideQuest, each linked for download from this page.

How do I authenticate with the SideQuest API?

SideQuest uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Sidequest Authentication.

Is the SideQuest API ready for AI agents?

SideQuest has a Kin Score of 28.5 out of 100 (thin) and an Agent Readiness score of 21.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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