# Weatherbit API vs Xweather Weather API (slim)

> Xweather Weather API scores 67.1 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 6 of 7 scored categories. Weatherbit API leads on reliability. Both do weather current. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/weatherbit-vs-xweather.md (~2,750 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/weatherbit-vs-xweather.json · canonical https://www.anchorterminal.com/compare/weatherbit-vs-xweather
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Xweather Weather API scores 67.1 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 6 of 7 scored categories. Weatherbit API leads on reliability. Both do weather current.

- Weatherbit API: C 57.7, rank #466 of 722 · https://www.anchorterminal.com/tools/weatherbit.min.md
- Xweather Weather API: B 67.1, rank #219 of 722 · https://www.anchorterminal.com/tools/xweather.min.md
- 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 74. Also Free to start without a card.
- Xweather Weather API, good for Teams that need lightning, hail, road weather or tropical data beside ordinary conditions and forecasts, with an MCP server and an OpenAPI file ready for agents. Ahead on Schema & documentation, 83 against 72; Agent ergonomics, 78 against 61; Security & auth, 52 against 39; Maintenance & community, 81 against 21; Transparency & trust, 68 against 63.

| Category | Weatherbit API | Xweather Weather API |
| --- | --- | --- |
| Reliability (16%) | 91 | 74 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 72 | 83 |
| Agent ergonomics (13%) | 61 | 78 |
| Security & auth (14%) | 39 | 52 |
| Payments & pricing (10%) | 30 | 32 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 21 | 81 |
| Transparency & trust (7%) | 63 | 68 |

| Fact (where they differ) | Weatherbit API | Xweather Weather API |
| --- | --- | --- |
| Vendor | Weatherbit LLC | Vaisala Oyj |
| Hosted endpoint | `https://api.weatherbit.io/v2.0` | `https://data.api.xweather.com` |
| Auth | API key | OAuth or key |
| Licence | 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 | Proprietary service under the General Conditions of Subscription Services of Vaisala Group. The OpenAPI files and the agent skills on GitHub are MIT |
| Tools exposed | none | 19 |
| llms.txt | no | yes |
| MCP registry | not listed | `com.xweather/weather` |
| Last release | 2025-08-01 | 2026-09-14 |
| Terms last updated | 2025-05-01 | couldn't be read |
| Privacy policy last updated | 2023-12-26 | 2020-06-01 |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | not found in the text | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | 78 PyPI/wk | 0 stars, 1.4k npm/wk |