Unrivaled Basketball

Unrivaled is a U.S. professional women's 3x3 basketball league co-founded by Napheesa Collier and Breanna Stewart, playing a condensed winter season with six clubs and a midseason 1-on-1 tournament. The league's official real-time data API — the Unrivaled API v8 — is operated by Sportradar as the league's Official Data Provider, delivering schedules, standings, rosters, live scores, play-by-play (including the Elam Ending and weighted free throws), injuries, transfers, and season statistics in JSON or XML.

Unrivaled Basketball publishes 7 API contracts indexed on the APIs.io network, including Games API, League API, Players API, and 4 more. Tagged areas include Company, Consumer, Basketball, Sports, and Womens Sports.

The Unrivaled Basketball catalog on APIs.io includes 1 Spectral governance ruleset.

Unrivaled Basketball’s developer surface includes authentication, engineering blog, support, documentation, API reference, getting-started guide, changelog, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.4/100 developing ▬ flat Agent 27/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 3 Agent Skills

Company Consumer Basketball SportsWomens SportsSports Data Media League

Kin Score

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

Composite quality — 42.4/100 · developing

Contract Quality 11.6 / 21

Developer Ergonomics 10.4 / 17

Access Clarity 3.6 / 17

Operational Transparency 1.7 / 11

Contract Governance 1.9 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

6 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 54.5 — up to +11.4 composite points
Operational Transparency scores 15.8 — up to +10.9 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/unrivaled-basketball/apis.yml: open an issue on github.com/api-evangelist/unrivaled-basketball 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 →

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 7

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

Unrivaled Basketball Games API

The Games API from Unrivaled Basketball — 5 operation(s) for games.

Unrivaled Basketball League API

The League API from Unrivaled Basketball — 7 operation(s) for league.

Unrivaled Basketball Players API

The Players API from Unrivaled Basketball — 1 operation(s) for players.

Unrivaled Basketball Seasons API

The Seasons API from Unrivaled Basketball — 4 operation(s) for seasons.

Unrivaled Basketball Series API

The Series API from Unrivaled Basketball — 2 operation(s) for series.

Unrivaled Basketball Teams API

The Teams API from Unrivaled Basketball — 1 operation(s) for teams.

Unrivaled Basketball Tournaments API

The Tournaments API from Unrivaled Basketball — 3 operation(s) for tournaments.

Scroll for all 7

Open Collections 7

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

Unrivaled Games API

OPEN COLLECTION

Unrivaled Games League API

OPEN COLLECTION

Unrivaled Games Players API

OPEN COLLECTION

Unrivaled Games Seasons API

OPEN COLLECTION

Unrivaled Games Series API

OPEN COLLECTION

Unrivaled Games Teams API

OPEN COLLECTION

Unrivaled Games Tournaments API

OPEN COLLECTION

Scroll for all 7

Agent Skills 3

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

Look up an Unrivaled roster and player profile

AGENT SKILL

Pull Unrivaled season standings, leaders, and statistics

AGENT SKILL

Track a live Unrivaled game

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Unrivaled Basketball API Rules

50 rules · 47 errors 2 warnings 1 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.

Unrivaled Basketball Unrivaled Overlay

24 actions · documentation · unrivaled-basketball-openapi.yml

DERIVED

Security Posture 2

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

Unrivaled Basketball Authentication

apiKey · 1 scheme

SECURITY

Unrivaled Basketball Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgentSkill

LLMsTxt

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

Postman

Postman

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: unrivaled-basketball
name: Unrivaled Basketball
description: Unrivaled is a U.S. professional women's 3x3 basketball league co-founded by Napheesa Collier and Breanna Stewart,
  playing a condensed winter season with six clubs and a midseason 1-on-1 tournament. The league's official real-time data
  API — the Unrivaled API v8 — is operated by Sportradar as the league's Official Data Provider, delivering schedules, standings,
  rosters, live scores, play-by-play (including the Elam Ending and weighted free throws), injuries, transfers, and season
  statistics in JSON or XML.
url: https://raw.githubusercontent.com/api-evangelist/unrivaled-basketball/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  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
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://www.unrivaled.basketball/images/icon-mask.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Consumer
- Basketball
- Sports
- Womens Sports
- Sports Data
- Media
- League
apis:
- aid: unrivaled-basketball:unrivaled-basketball-games-api
  name: Unrivaled Basketball Games API
  description: The Games API from Unrivaled Basketball — 5 operation(s) for games.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Games
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-games-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-league-api
  name: Unrivaled Basketball League API
  description: The League API from Unrivaled Basketball — 7 operation(s) for league.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - League
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-league-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-players-api
  name: Unrivaled Basketball Players API
  description: The Players API from Unrivaled Basketball — 1 operation(s) for players.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Player
  tags_raw:
  - Players
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-players-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-seasons-api
  name: Unrivaled Basketball Seasons API
  description: The Seasons API from Unrivaled Basketball — 4 operation(s) for seasons.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Seasons
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-seasons-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-series-api
  name: Unrivaled Basketball Series API
  description: The Series API from Unrivaled Basketball — 2 operation(s) for series.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Series
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-series-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-teams-api
  name: Unrivaled Basketball Teams API
  description: The Teams API from Unrivaled Basketball — 1 operation(s) for teams.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-teams-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- aid: unrivaled-basketball:unrivaled-basketball-tournaments-api
  name: Unrivaled Basketball Tournaments API
  description: The Tournaments API from Unrivaled Basketball — 3 operation(s) for tournaments.
  humanURL: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  baseURL: https://api.sportradar.com/unrivaled
  tags:
  - Tournaments
  properties:
  - type: OpenAPI
    url: openapi/unrivaled-basketball-tournaments-api-openapi.yml
  - type: Documentation
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-overview
  - type: APIReference
    url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
  - type: GettingStarted
    url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/unrivaled-basketball-domain-security.yml
- type: Authentication
  url: authentication/unrivaled-basketball-authentication.yml
- type: Website
  url: https://www.unrivaled.basketball/
- type: Blog
  url: https://www.unrivaled.basketball/news
- type: Support
  url: https://www.unrivaled.basketball/contact-us
- type: TermsOfService
  url: https://www.unrivaled.basketball/legal/terms-of-use
- type: PrivacyPolicy
  url: https://www.unrivaled.basketball/legal/privacy-policy
- type: Documentation
  url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
- type: APIReference
  url: https://developer.sportradar.com/basketball/reference/unrivaled-overview
- type: GettingStarted
  url: https://developer.sportradar.com/basketball/docs/unrivaled-ig-api-basics
- type: Postman
  url: https://app.getpostman.com/run-collection/17203961-e11f651d-fb09-4326-a96b-71a4c41d655d?action=collection%2Ffork&collection-url=entityId%3D17203961-e11f651d-fb09-4326-a96b-71a4c41d655d%26entityType%3Dcollection%26workspaceId%3Da6193b92-ee53-4979-bbfe-7ffdc589c3fc
- type: ChangeLog
  url: changelog/unrivaled-basketball-changelog.yml
- type: Lifecycle
  url: lifecycle/unrivaled-basketball-lifecycle.yml
- type: Conventions
  url: conventions/unrivaled-basketball-conventions.yml
- type: Conformance
  url: conformance/unrivaled-basketball-conformance.yml
- type: Sandbox
  url: sandbox/unrivaled-basketball-sandbox.yml
- type: DataModel
  url: data-model/unrivaled-basketball-data-model.yml
- type: Overlay
  url: overlays/unrivaled-basketball-unrivaled-overlay.yaml
- type: X-MCPServerCandidate
  url: mcp/unrivaled-basketball-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/unrivaled-basketball-llms.txt
- type: WellKnown
  url: well-known/unrivaled-basketball-well-known.yml

Unrivaled Basketball API — frequently asked questions

Does Unrivaled Basketball have an API?

Yes. APIs.io lists 7 APIs from Unrivaled Basketball, including Unrivaled Basketball Games API, Unrivaled Basketball League API and Unrivaled Basketball Players API, and 4 more.

Is there an OpenAPI specification for the Unrivaled Basketball API?

Yes. APIs.io indexes 7 OpenAPI specifications for Unrivaled Basketball, each linked for download from this page.

How do I authenticate with the Unrivaled Basketball API?

Unrivaled Basketball uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Unrivaled Basketball Authentication.

Is the Unrivaled Basketball API ready for AI agents?

Unrivaled Basketball has a Kin Score of 42.4 out of 100 (developing) and an Agent Readiness score of 26.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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