# Tomorrow.io Weather API vs Weatherbit API (slim)

> Weatherbit API scores 57.7 (C) on agent readiness against Tomorrow.io Weather API's 51.4 (D), and leads in 3 of 7 scored categories. Tomorrow.io Weather API leads on agent ergonomics and maintenance & community. Both do weather current. Category scores, facts, verdicts and agent…

- Full: https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit.md (~2,700 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit.json · canonical https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Weatherbit API scores 57.7 (C) on agent readiness against Tomorrow.io Weather API's 51.4 (D), and leads in 3 of 7 scored categories. Tomorrow.io Weather API leads on agent ergonomics and maintenance & community. Both do weather current.

- Tomorrow.io Weather API: D 51.4, rank #578 of 722 · https://www.anchorterminal.com/tools/tomorrow-io.min.md
- Weatherbit API: C 57.7, rank #466 of 722 · https://www.anchorterminal.com/tools/weatherbit.min.md
- Tomorrow.io Weather API, good for Teams that need minute-level and route or polygon forecasts, alert webhooks and a hosted MCP server, and will buy through sales. Ahead on Agent ergonomics, 73 against 61; Maintenance & community, 27 against 21.
- 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 55; Security & auth, 39 against 34; Payments & pricing, 30 against 20. Also Free to start without a card.

| Category | Tomorrow.io Weather API | Weatherbit API |
| --- | --- | --- |
| Reliability (16%) | 55 | 91 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 72 |
| Agent ergonomics (13%) | 73 | 61 |
| Security & auth (14%) | 34 | 39 |
| Payments & pricing (10%) | 20 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 27 | 21 |
| Transparency & trust (7%) | 63 | 63 |

| Fact (where they differ) | Tomorrow.io Weather API | Weatherbit API |
| --- | --- | --- |
| Vendor | The Tomorrow Companies Inc. | Weatherbit LLC |
| Hosted endpoint | `https://api.tomorrow.io/v4` | `https://api.weatherbit.io/v2.0` |
| Auth | OAuth or key | API key |
| Licence | Proprietary service under Tomorrow.io's subscription terms | 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 |
| Tools exposed | 11 | none |
| llms.txt | yes | no |
| Last release | 2026-07-14 | 2025-08-01 |
| Terms last updated | couldn't be read | 2025-05-01 |
| Privacy policy last updated | couldn't be read | 2023-12-26 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | none | 78 PyPI/wk |