# Google Weather API (Maps Platform) vs OpenWeather One Call API (slim)

> Google Weather API (Maps Platform) has a score of 67 (B) against OpenWeather One Call API's 57.4 (C). Both do weather current. The largest gap is reliability, 40 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/google-weather-api-vs-openweather-one-call.md (~1,700 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/google-weather-api-vs-openweather-one-call.json · canonical https://www.anchorterminal.com/compare/google-weather-api-vs-openweather-one-call
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

Google Weather API (Maps Platform) has a score of 67 (B) against OpenWeather One Call API's 57.4 (C). Both do weather current. The largest gap is reliability, 40 points.

- Google Weather API (Maps Platform): B 67, rank #151 of 452 · https://www.anchorterminal.com/tools/google-weather-api.min.md
- OpenWeather One Call API: C 57.4, rank #294 of 452 · https://www.anchorterminal.com/tools/openweather-one-call.min.md
- Pick Google Weather API (Maps Platform) for reliability (+40), schema & documentation (+14), agent ergonomics (+6), security & auth (+29), transparency & trust (+13). Pick OpenWeather One Call API for payments & pricing (+35), maintenance & community (+40).

| Category | Google Weather API (Maps Platform) | OpenWeather One Call API |
| --- | --- | --- |
| Reliability (16%) | 85 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 82 | 68 |
| Agent ergonomics (13%) | 79 | 73 |
| Security & auth (14%) | 71 | 42 |
| Payments & pricing (10%) | 25 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 20 | 60 |
| Transparency & trust (7%) | 75 | 62 |