# Open-Meteo

**Canonical:** https://apis.io/providers/open-meteo/  
**Website:** https://open-meteo.com  
**APIs profiled:** 10

Open-Meteo is an open-source weather API that provides free global weather forecasts, historical reanalysis data, marine conditions, air quality indexes, and long-range climate projections through a simple REST interface requiring no API key for non-commercial use. The service aggregates data from over 30 weather models provided by 15+ national meteorological services including ECMWF, NOAA GFS, DWD ICON, Météo-France, and JMA, delivering resolutions from 1 km to 11 km updated every 1 to 6 hours. Historical data extends back to 1940 via ERA5 reanalysis, giving developers and researchers access to consistent long-term climate records alongside real-time forecasts. Commercial users who need dedicated server capacity, higher throughput, and access to extended APIs such as ensemble forecasts, seasonal outlooks, satellite radiation, and climate change projections can subscribe to paid plans priced at a flat monthly rate with no per-call overage charges. The entire server infrastructure is open-source under the AGPLv3 license and can be self-hosted, while the underlying weather data is released under CC BY 4.0.

## Kin Score — 40.7 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 40.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 51.7 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 24.5 (agent-aware)

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

## Access

Freemium · Open access — onboarding: open, pricing: freemium, trial: no (confidence: medium).

## APIs (10)

- **Geocoding API** — Converts place names and city searches into geographic coordinates and returns metadata such as country, timezone, population, and elevation to facilitate location lookup within...
- **Open-Meteo Air Quality APIs API** — The Air Quality APIs API from Open-Meteo — 1 operation(s) for air quality apis.
- **Open-Meteo Climate Change APIs API** — The Climate Change APIs API from Open-Meteo — 1 operation(s) for climate change apis.
- **Open-Meteo Elevation API API** — The Elevation API API from Open-Meteo — 1 operation(s) for elevation api.
- **Open-Meteo Ensemble Forecast APIs API** — The Ensemble Forecast APIs API from Open-Meteo — 1 operation(s) for ensemble forecast apis.
- **Open-Meteo Flood APIs API** — The Flood APIs API from Open-Meteo — 1 operation(s) for flood apis.
- **Open-Meteo Historical Weather APIs API** — The Historical Weather APIs API from Open-Meteo — 1 operation(s) for historical weather apis.
- **Open-Meteo Marine Weather APIs API** — The Marine Weather APIs API from Open-Meteo — 1 operation(s) for marine weather apis.
- **Open-Meteo Seasonal Forecast APIs API** — The Seasonal Forecast APIs API from Open-Meteo — 1 operation(s) for seasonal forecast apis.
- **Open-Meteo Weather Forecast APIs API** — The Weather Forecast APIs API from Open-Meteo — 1 operation(s) for weather forecast apis.

## Agentic access (1)

- **Open Meteo Agentic Access** — 9 operations

## Security (1)

- **Open Meteo Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Open Meteo Plans Pricing**

## Tags

Weather, Forecast, Historical Weather, Air Quality, Marine, Climate, Open-Source, Free

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