# Meteomatics Weather API vs Open-Meteo (slim)

> Open-Meteo scores 63.4 (B) to Meteomatics Weather's 49.6 (D) for weather data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/meteomatics-vs-open-meteo.md (~2,900 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/meteomatics-vs-open-meteo.json · canonical https://www.anchorterminal.com/compare/meteomatics-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 Meteomatics Weather API's 49.6 (D), and leads in 6 of 7 scored categories. Meteomatics Weather API leads on security & auth. Both do weather data.

- Meteomatics Weather API: D 49.6, rank #790 of 950 · https://www.anchorterminal.com/tools/meteomatics.min.md
- Open-Meteo: B 63.4, rank #394 of 950 · https://www.anchorterminal.com/tools/open-meteo.min.md
- Meteomatics Weather API, good for Companies in energy, aviation, insurance and logistics that need many models, long history, polygon and route queries and an SLA, and will buy by contract. Ahead on Security & auth, 54 against 38.
- Open-Meteo, good for Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup. Ahead on Reliability, 50 against 34; Schema & documentation, 77 against 71; Agent ergonomics, 85 against 80; Payments & pricing, 50 against 0; Maintenance & community, 90 against 42; Transparency & trust, 72 against 59. Also No key needed to call it; Open source.

| Category | Meteomatics Weather API | Open-Meteo |
| --- | --- | --- |
| Reliability (16%) | 34 | 50 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 71 | 77 |
| Agent ergonomics (13%) | 80 | 85 |
| Security & auth (14%) | 54 | 38 |
| Payments & pricing (10%) | 0 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 42 | 90 |
| Transparency & trust (7%) | 59 | 72 |

| Fact (where they differ) | Meteomatics Weather API | Open-Meteo |
| --- | --- | --- |
| Vendor | Meteomatics AG | Open-Meteo |
| Hosted endpoint | `https://api.meteomatics.com` | `https://api.open-meteo.com/v1/forecast` |
| Auth | OAuth or key | None |
| Pricing | Paid | Freemium |
| Licence | Proprietary service under Meteomatics' general terms and conditions. The Python connector on GitHub is MIT | AGPL-3.0 (code), CC BY 4.0 (data) |
| Tools exposed | 9 | none |
| llms.txt | yes | no |
| Last release | 2026-08-24 | 2026-09-10 |
| Popularity | 56 stars, 16k PyPI/wk | 6.2k stars |
| Agent reviews | none | 4/5 (2) |