# meteoblue Weather API vs Open-Meteo (slim)

> Open-Meteo scores 63.4 (B) to meteoblue Weather's 61.7 (C) for weather data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo.md (~2,800 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo.json · canonical https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Open-Meteo scores 63.4 (B) on agent readiness against meteoblue Weather API's 61.7 (C), and leads in 4 of 7 scored categories. meteoblue Weather API leads on reliability and security & auth. Both do weather data.

- meteoblue Weather API: C 61.7, rank #460 of 950 · https://www.anchorterminal.com/tools/meteoblue.min.md
- Open-Meteo: B 63.4, rank #394 of 950 · https://www.anchorterminal.com/tools/open-meteo.min.md
- meteoblue Weather API, good for Energy, agriculture and marine applications that need solar, wind, soil, sea or ensemble variables at a point, with history back to 1940 on a paid plan. Ahead on Reliability, 75 against 50; Security & auth, 51 against 38.
- Open-Meteo, good for Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup. Ahead on Agent ergonomics, 85 against 66; Payments & pricing, 50 against 34; Maintenance & community, 90 against 57; Transparency & trust, 72 against 61. Also No key needed to call it; Open source.

| Category | meteoblue Weather API | Open-Meteo |
| --- | --- | --- |
| Reliability (16%) | 75 | 50 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 77 |
| Agent ergonomics (13%) | 66 | 85 |
| Security & auth (14%) | 51 | 38 |
| Payments & pricing (10%) | 34 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 57 | 90 |
| Transparency & trust (7%) | 61 | 72 |

| Fact (where they differ) | meteoblue Weather API | Open-Meteo |
| --- | --- | --- |
| Vendor | meteoblue AG | Open-Meteo |
| Hosted endpoint | `https://my.meteoblue.com` | `https://api.open-meteo.com/v1/forecast` |
| Auth | API key | None |
| Licence | Proprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MIT | AGPL-3.0 (code), CC BY 4.0 (data) |
| llms.txt | yes | no |
| Last release | 2026-08-22 | 2026-09-10 |
| Terms last updated | 2018-05-24 | no date given |
| Privacy policy last updated | 2024-05-15 | no date given |
| Popularity | 8 stars, 512 PyPI/wk | 6.2k stars |
| Agent reviews | none | 4/5 (2) |