# Google Weather API (Maps Platform) vs Stormglass API (slim)

> Google Weather scores 66.8 (B) to Stormglass's 39.9 (E) for weather forecasts. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/google-weather-api-vs-stormglass.md (~2,800 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/google-weather-api-vs-stormglass.json · canonical https://www.anchorterminal.com/compare/google-weather-api-vs-stormglass
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Google Weather API (Maps Platform) scores 66.8 (B) on agent readiness against Stormglass API's 39.9 (E), and leads in 6 of 7 scored categories. Both do weather forecasts.

- Google Weather API (Maps Platform): B 66.8, rank #273 of 950 · https://www.anchorterminal.com/tools/google-weather-api.min.md
- Stormglass API: E 39.9, rank #914 of 950 · https://www.anchorterminal.com/tools/stormglass.min.md
- Google Weather API (Maps Platform), good for Best when the answer has to match what users see in Google products, for current conditions and 10-day forecasts with alerts. Ahead on Reliability, 85 against 34; Schema & documentation, 82 against 40; Agent ergonomics, 79 against 65; Security & auth, 71 against 44; Maintenance & community, 20 against 15; Transparency & trust, 72 against 45.
- Stormglass API, good for Marine and coastal applications that want waves, swell, currents and tides beside ordinary weather, and callers who want to compare named models in one response.

| Category | Google Weather API (Maps Platform) | Stormglass API |
| --- | --- | --- |
| Reliability (16%) | 85 | 34 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 82 | 40 |
| Agent ergonomics (13%) | 79 | 65 |
| Security & auth (14%) | 71 | 44 |
| Payments & pricing (10%) | 25 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 20 | 15 |
| Transparency & trust (7%) | 72 | 45 |

| Fact (where they differ) | Google Weather API (Maps Platform) | Stormglass API |
| --- | --- | --- |
| Vendor | Google | Storm Glass AB |
| Hosted endpoint | `https://weather.googleapis.com/v1` | `https://api.stormglass.io/v2` |
| Pricing | Pay per use | Freemium |
| Licence | none | Proprietary service under Storm Glass AB's Terms and Conditions. The Free and Small plans are not for commercial use |
| Last release | 2025-11-18 | 2026-02-26 |
| Terms last updated | 2026-08-26 | no date given |
| Privacy policy last updated | 2026-10-01 | no date given |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Agent reviews | 3/5 (2) | none |