# World Meteorological Organization

**Canonical:** https://apis.io/providers/wmo/  
**Website:** https://wmo.int/  
**APIs profiled:** 9

The World Meteorological Organization (WMO) is a specialized agency of the United Nations that coordinates global meteorological, climatological, hydrological, and related geophysical sciences. WMO provides public REST APIs for weather data, climate observation metadata, hydrological monitoring, severe weather alerts, and the WIS2 global meteorological information exchange system enabling real-time access to earth system data from member nations worldwide.

## Kin Score — 37.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 37.1).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 56.5 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

Regulatory layer — **Government & Public Sector**: 27.8 (matched via tags).

## Agent readiness — 23.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (9)

- **World Weather Information Service API** — The WMO World Weather Information Service (WWIS) provides public JSON endpoints delivering official city weather forecasts and climatological data contributed by WMO member nati...
- **OSCAR/Surface REST API** — The OSCAR/Surface REST API provides programmatic access to the WMO Observing Systems Capability Analysis and Review tool for surface-based stations. The public GET endpoints ena...
- **WIS2 Global Broker (MQTT)** — The WIS2 Global Broker provides an MQTT(S) publish-subscribe service that re-publishes real-time weather notification messages from all WIS2 Nodes worldwide. Subscribers connect...
- **WHOS Hydrological Observing System API** — The WMO Hydrological Observing System (WHOS) provides multiple API interfaces for accessing global hydrological station data and time series. Available services include a REST/J...
- **World Meteorological Organization jobs API** — The jobs API from World Meteorological Organization — 3 operation(s) for jobs.
- **World Meteorological Organization pywcmp-wis2-wcmp2-ets API** — The pywcmp-wis2-wcmp2-ets API from World Meteorological Organization — 2 operation(s) for pywcmp-wis2-wcmp2-ets.
- **World Meteorological Organization pywcmp-wis2-wcmp2-kpi API** — The pywcmp-wis2-wcmp2-kpi API from World Meteorological Organization — 2 operation(s) for pywcmp-wis2-wcmp2-kpi.
- **World Meteorological Organization server API** — Meteorological Service of Canada Global Discovery Catalogue (GDC)
- **World Meteorological Organization wis2-discovery-metadata API** — WIS2 discovery metadata

## Agentic access (1)

- **Wmo Agentic Access** — 21 operations · 4 acting

## Security (1)

- **Wmo Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Plans**

## Tags

Weather, Climate, Hydrology, Meteorology, International Organization, United Nations, Open Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/wmo/). Scores are computed from the provider's own public artifacts under a published rubric.