aid: league
name: League
description: 'League is a Toronto-founded (2014) healthcare platform company whose Health OS powers consumer
  healthcare experiences for payers, providers, consumer health brands and employers, and which now positions
  itself as a healthcare-grade agentic experience platform shipping pre-built AI Agent Teams for benefits
  navigation, care navigation and health coaching. Its data platform is built on the HL7 FHIR standard,
  using FHIR resources such as QuestionnaireResponse and CarePlan to model both integrated healthcare
  data and member-generated data across a longitudinal health record. League runs a Developer Program
  that gives contracted customers SDKs, a server-driven UI framework, back-end extensions and data integrations
  for embedding League into existing applications. The platform API is served from a live Kong-fronted
  gateway at api.league.com that answers with the JSON:API media type, but neither the API reference nor
  any machine-readable contract is published publicly: the documentation portal sits behind an Auth0 login
  and developer access is granted through a contact-sales form.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
image: https://e3r429ujnza.exactdn.com/wp-content/uploads/2022/06/league-logo.svg
url: https://raw.githubusercontent.com/api-evangelist/league/refs/heads/main/apis.yml
x-api-posture: no-product-api
x-api-posture-basis: observed
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-25'
modified: '2026-08-25'
tags:
- Company
- Health
- Healthcare
- Digital Health
- Health Benefits
- Interoperability
- FHIR
- Agents
- Artificial Intelligence
- Patient Engagement
- Insurance
- Software-as-a-Service
tags_raw:
- Company
- Health
- Healthcare
- Digital Health
- Health Benefits
- Interoperability
- FHIR
- Agents
- Artificial Intelligence
- Patient Engagement
- Insurance
- SaaS
apis:
- name: League Platform API
  description: The League platform API, served from the Kong-fronted gateway at api.league.com. Unauthenticated
    requests return an RFC-shaped JSON:API error document (content-type application/vnd.api+json) and
    carry x-ratelimit-limit-360 / x-ratelimit-remaining-360 response headers, confirming a live, rate-limited
    production gateway. Access is provisioned per customer as API Keys under the League Developer Program
    Terms; no public API reference or machine-readable contract is published.
  humanURL: https://league.com/digital-healthcare-developer-program/
  baseURL: https://api.league.com
  tags:
  - Health
  - FHIR
  - Platform
  properties:
  - type: RateLimits
    url: rate-limits/league-rate-limits.yml
  - type: ErrorCatalog
    url: errors/league-problem-types.yml
  - type: Authentication
    url: authentication/league-authentication.yml
  - type: Conventions
    url: conventions/league-conventions.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: TrustCenter
  url: security/league-trust-center.yml
- type: DomainSecurity
  url: security/league-domain-security.yml
- type: Website
  url: https://league.com/
- type: DeveloperPortal
  url: https://league.com/digital-healthcare-developer-program/
- type: SignUp
  url: https://league.com/digital-healthcare-developer-program/join/
- type: TermsOfService
  url: https://league.com/developer-program-terms/
- type: PrivacyPolicy
  url: https://league.com/privacy-policy/
- type: Support
  url: https://help.league.com/ca-en
- type: Blog
  url: https://league.com/blog/
- type: GitHubOrganization
  url: https://github.com/leagueinc
- type: Compliance
  url: conformance/league-conformance.yml
- type: Conformance
  url: conformance/league-conformance.yml
- type: ChangeLog
  url: changelog/league-changelog.yml
- type: Deprecation
  url: lifecycle/league-lifecycle.yml
- type: Lifecycle
  url: lifecycle/league-lifecycle.yml
- type: Plans
  url: plans/league-plans-pricing.yml
- type: Packages
  url: packages/league-packages.yml
- type: LLMsTxt
  url: llms/league-llms.txt
x-enrichment:
  date: '2026-08-25'
  status: enriched
  artifacts_added: 14
  pass: local-v1
x-coverage:
  state: covered
  reason: contract-absent-docs-gated
  detail: 'League runs a live production API — api.league.com answers with the JSON:API media type behind
    Kong 3.8.0 and enforces an advertised 10,000-request/360-second rate limit — but publishes no machine-readable
    contract anywhere: docs.league.com 302s to an Auth0 universal login, developer.league.com (formerly
    a ReadMe hub) now 301s to the marketing site, and developer access runs through a 48-hour contact-sales
    form, so every artifact here is probed from the live gateway or searched from public policy pages
    rather than read from a spec.'
  evidence:
  - url: https://api.league.com/
    status: 404
  - url: https://docs.league.com/
    status: 302
  - url: https://developer.league.com/
    status: 301
  - url: https://api.league.com/openapi.json
    status: 404
  - url: https://league.com/digital-healthcare-developer-program/join/
    status: 200
  checked: '2026-08-25'