Yahoo website screenshot

Yahoo

The Fantasy Sports APIs provide URIs used to access fantasy sports data. Currently the APIs support retrieval of Fantasy Football, Baseball, Basketball, and Hockey data including game, league, team, and player information. The APIs are based on a RESTful model. Therefore, resources like game, league, team, player etc. and collections like games, leagues, teams, players form the building blocks for these APIs.

Yahoo publishes 1 API on the APIs.io network.

🌐 Visit website 📡 Source on GitHub
17.7/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1
AccessFreemium
1 APIs

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1
Composite quality — 17.7/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.0 / 10
Agent readiness — 3/100 · 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 7 / 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/yahoo: 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 1

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

Yahoo

The Fantasy Sports APIs provide URIs used to access fantasy sports data. Currently the APIs support retrieval of Fantasy Football, Baseball, Basketball, and Hockey data includin...

Pricing Plans 1

Published pricing tiers and plan structures.

Yahoo Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Yahoo Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Yahoo Finops

FINOPS

Security Posture 2

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

Yahoo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Yahoo Vulnerability Disclosure

Intigriti · security.txt · contact published

SECURITY

Press 5

Recent news and press coverage referencing this provider.

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Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Company 1

The organization behind the API

LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: yahoo
name: Yahoo
description: The Fantasy Sports APIs provide URIs used to access fantasy sports data. Currently the APIs support retrieval
  of Fantasy Football, Baseball, Basketball, and Hockey data including game, league, team, and player information. The APIs
  are based on a RESTful model. Therefore, resources like game, league, team, player etc. and collections like games, leagues,
  teams, players form the building blocks for these APIs.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/yahoo.png
tags: []
created: '2025-02-08'
modified: '2026-03-16'
url: https://raw.githubusercontent.com/api-evangelist/yahoo/refs/heads/main/apis.yml
specificationVersion: '0.19'
common:
- type: VulnerabilityDisclosure
  url: security/yahoo-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/yahoo-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/yahoo
- type: LinkedIn
  url: https://www.linkedin.com/company/yahoo
apis:
- aid: yahoo:yahoo
  name: Yahoo
  description: The Fantasy Sports APIs provide URIs used to access fantasy sports data. Currently the APIs support retrieval
    of Fantasy Football, Baseball, Basketball, and Hockey data including game, league, team, and player information. The APIs
    are based on a RESTful model. Therefore, resources like game, league, team, player etc. and collections like games, leagues,
    teams, players form the building blocks for these APIs.
  humanURL: ' https://developer.yahoo.com/fantasysports/guide/'
  tags: []
  properties:
  - type: Documentation
    url: ' https://developer.yahoo.com/fantasysports/guide/'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com