World Health Organization (WHO)

The World Health Organization (WHO) is the United Nations specialized agency for international public health. WHO provides free public REST APIs giving programmatic access to global health statistics, disease surveillance data, immunization coverage, health indicators by country, and the International Classification of Diseases (ICD). The GHO OData API exposes hundreds of health indicators across all WHO member states with no authentication required, while the ICD API provides structured access to ICD-11 and ICD-10 clinical classifications via OAuth 2 credentials obtained through free registration.

World Health Organization (WHO) publishes 3 API contracts indexed on the APIs.io network: Foundation API, ICD10 API, and Linearization (classification endpoints) API. Tagged areas include Health, Global Health, Disease Surveillance, Immunization, and Health Statistics.

The World Health Organization (WHO) catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

World Health Organization (WHO)’s developer surface includes authentication, documentation, engineering blog, pricing, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

28.3/100 thin ▬ flat Agent 20/100 agent aware Front door AI 2/6 trace Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 published contract

Health Global Health Disease Surveillance ImmunizationHealth StatisticsICDWHOUnited Nations Open Data

Kin Score

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

Composite quality — 28.3/100 · thin

Contract Quality 8.7 / 19

Developer Ergonomics 2.7 / 15

Access Clarity 2.4 / 15

Operational Transparency 0.5 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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

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 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health 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
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)
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

10 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 17.9 — up to +16.4 composite points
Contract Quality scores 46.5 — up to +13.4 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/who/apis.yml: open an issue on github.com/api-evangelist/who 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 2

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)

OAuth 2.0

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Who Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

World Health Organization (WHO)

SLA

FinOps 1

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

Who Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Who Context

17 classes · 5 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

World Health Organization (WHO) — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

10 properties

JSON SCHEMA

UnderlyingCauseOfDeath

9 properties

JSON SCHEMA

Scroll for all 25

Security Posture 2

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

Who Authentication

oauth2 · 1 scheme

SECURITY

Who Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Who Scopes

1 scope · clientCredentials

1 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Who Agentic Access

25 operations · 2 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: who
name: World Health Organization (WHO)
description: 'The World Health Organization (WHO) is the United Nations specialized agency for international public health.
  WHO provides free public REST APIs giving programmatic access to global health statistics, disease surveillance data, immunization
  coverage, health indicators by country, and the International Classification of Diseases (ICD). The GHO OData API exposes
  hundreds of health indicators across all WHO member states with no authentication required, while the ICD API provides structured
  access to ICD-11 and ICD-10 clinical classifications via OAuth 2 credentials obtained through free registration.

  '
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: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/who.png
url: https://raw.githubusercontent.com/api-evangelist/who/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Health
- Global Health
- Disease Surveillance
- Immunization
- Health Statistics
- ICD
- WHO
- United Nations
- Open Data
apis:
- aid: who:who-foundation-api
  name: World Health Organization (WHO) Foundation API
  description: The Foundation API from World Health Organization (WHO) — 4 operation(s) for foundation.
  humanURL: https://www.who.int/data/gho/info/gho-odata-api
  baseURL: https://ghoapi.azureedge.net/api
  tags:
  - Foundations
  tags_raw:
  - Foundation
  properties:
  - type: OpenAPI
    url: openapi/who-foundation-api-openapi.yml
  - type: Documentation
    url: https://www.who.int/data/gho/info/gho-odata-api
  - type: Documentation
    url: https://icd.who.int/docs/icd-api/APIDoc-Version2/
  - type: Authentication
    url: https://icdaccessmanagement.who.int/connect/token
- aid: who:who-icd10-api
  name: World Health Organization (WHO) ICD10 API
  description: The ICD10 API from World Health Organization (WHO) — 4 operation(s) for icd10.
  humanURL: https://www.who.int/data/gho/info/gho-odata-api
  baseURL: https://ghoapi.azureedge.net/api
  tags:
  - ICD-10
  tags_raw:
  - ICD10
  properties:
  - type: OpenAPI
    url: openapi/who-icd10-api-openapi.yml
  - type: Documentation
    url: https://www.who.int/data/gho/info/gho-odata-api
  - type: Documentation
    url: https://icd.who.int/docs/icd-api/APIDoc-Version2/
  - type: Authentication
    url: https://icdaccessmanagement.who.int/connect/token
- aid: who:who-linearization-classification-endpoints-api
  name: World Health Organization (WHO) Linearization (classification endpoints) API
  description: The Linearization (classification endpoints) API from World Health Organization (WHO) — 13 operation(s) for
    linearization (classification endpoints).
  humanURL: https://www.who.int/data/gho/info/gho-odata-api
  baseURL: https://ghoapi.azureedge.net/api
  tags:
  - Linearization (classification endpoints)
  properties:
  - type: OpenAPI
    url: openapi/who-linearization-classification-endpoints-api-openapi.yml
  - type: Documentation
    url: https://www.who.int/data/gho/info/gho-odata-api
  - type: Documentation
    url: https://icd.who.int/docs/icd-api/APIDoc-Version2/
  - type: Authentication
    url: https://icdaccessmanagement.who.int/connect/token
common:
- type: AgenticAccess
  url: agentic-access/who-agentic-access.yml
- type: DomainSecurity
  url: security/who-domain-security.yml
- type: Authentication
  url: authentication/who-authentication.yml
- type: OAuthScopes
  url: scopes/who-scopes.yml
- type: Website
  url: https://www.who.int
- type: Documentation
  url: https://www.who.int/data/gho/info/gho-odata-api
- type: GitHubOrg
  url: https://github.com/WorldHealthOrganization
- type: LinkedIn
  url: https://www.linkedin.com/company/world-health-organization-who-/
- type: Blog
  url: https://www.who.int/news-room
- type: Pricing
  url: https://icd.who.int/docs/icd-api/license/
- type: X
  url: https://x.com/WHO
- type: Plans
  url: plans/who-plans-pricing.yml
- type: RateLimits
  url: rate-limits/who-rate-limits.yml
- type: FinOps
  url: finops/who-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

World Health Organization (WHO) API — frequently asked questions

Does World Health Organization (WHO) have an API?

Yes. APIs.io lists 3 APIs from World Health Organization (WHO), including World Health Organization (WHO) Foundation API, World Health Organization (WHO) ICD10 API and World Health Organization (WHO) Linearization (classification endpoints) API.

Is there an OpenAPI specification for the World Health Organization (WHO) API?

Yes. APIs.io indexes 3 OpenAPI specifications for World Health Organization (WHO), each linked for download from this page.

How do I authenticate with the World Health Organization (WHO) API?

World Health Organization (WHO) documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Who Authentication.

How much does the World Health Organization (WHO) API cost?

APIs.io lists 2 pricing plans for World Health Organization (WHO), with each plan's price, limits and inclusions under Pricing on this page.

Is the World Health Organization (WHO) API ready for AI agents?

World Health Organization (WHO) has a Kin Score of 28.3 out of 100 (thin) and an Agent Readiness score of 20.3 (agent-aware), scored by API Evangelist on 2026-11-06.

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