# Stormglass API vs Weatherbit API (slim)

> Weatherbit scores 57.7 (C) 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/stormglass-vs-weatherbit.md (~2,800 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/stormglass-vs-weatherbit.json · canonical https://www.anchorterminal.com/compare/stormglass-vs-weatherbit
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Weatherbit API scores 57.7 (C) on agent readiness against Stormglass API's 39.9 (E), and leads in 5 of 7 scored categories. Stormglass API leads on security & auth. Both do weather forecasts.

- Stormglass API: E 39.9, rank #914 of 950 · https://www.anchorterminal.com/tools/stormglass.min.md
- Weatherbit API: C 57.7, rank #599 of 950 · https://www.anchorterminal.com/tools/weatherbit.min.md
- 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. Ahead on Security & auth, 44 against 39.
- Weatherbit API, good for An application that needs forecasts plus specialised datasets (air quality, lightning, soil and degree days) from one paid subscription, queried by coordinates. Ahead on Reliability, 91 against 34; Schema & documentation, 72 against 40; Payments & pricing, 30 against 25; Maintenance & community, 21 against 15; Transparency & trust, 63 against 45. Also Free to start without a card.

| Category | Stormglass API | Weatherbit API |
| --- | --- | --- |
| Reliability (16%) | 34 | 91 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 40 | 72 |
| Agent ergonomics (13%) | 65 | 61 |
| Security & auth (14%) | 44 | 39 |
| Payments & pricing (10%) | 25 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 15 | 21 |
| Transparency & trust (7%) | 45 | 63 |

| Fact (where they differ) | Stormglass API | Weatherbit API |
| --- | --- | --- |
| Vendor | Storm Glass AB | Weatherbit LLC |
| Hosted endpoint | `https://api.stormglass.io/v2` | `https://api.weatherbit.io/v2.0` |
| Licence | Proprietary service under Storm Glass AB's Terms and Conditions. The Free and Small plans are not for commercial use | Proprietary service under Weatherbit's terms of service. The free plan's data is under a Creative Commons non-commercial licence. The Python SDK is MIT |
| Last release | 2026-02-26 | 2025-08-01 |
| Terms last updated | no date given | 2025-05-01 |
| Privacy policy last updated | no date given | 2023-12-26 |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | none | 78 PyPI/wk |