# Tomorrow.io Weather API vs Visual Crossing Weather API (slim)

> Visual Crossing Weather API scores 59.9 (C) on agent readiness against Tomorrow.io Weather API's 51.4 (D), and leads in 5 of 7 scored categories. Tomorrow.io Weather API leads on transparency & trust. Both do weather current. Category scores, facts, verdicts and agent notes side…

- Full: https://www.anchorterminal.com/compare/tomorrow-io-vs-visual-crossing.md (~2,700 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/tomorrow-io-vs-visual-crossing.json · canonical https://www.anchorterminal.com/compare/tomorrow-io-vs-visual-crossing
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Visual Crossing Weather API scores 59.9 (C) on agent readiness against Tomorrow.io Weather API's 51.4 (D), and leads in 5 of 7 scored categories. Tomorrow.io Weather API leads on transparency & trust. Both do weather current.

- Tomorrow.io Weather API: D 51.4, rank #578 of 722 · https://www.anchorterminal.com/tools/tomorrow-io.min.md
- Visual Crossing Weather API: C 59.9, rank #417 of 722 · https://www.anchorterminal.com/tools/visual-crossing.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 Transparency & trust, 63 against 56.
- Visual Crossing Weather API, good for History and backfills, climate normals and date-range questions from one endpoint. Ahead on Reliability, 66 against 55; Agent ergonomics, 78 against 73; Security & auth, 40 against 34; Payments & pricing, 40 against 20; Maintenance & community, 58 against 27. Also Free to start without a card.

| Category | Tomorrow.io Weather API | Visual Crossing Weather API |
| --- | --- | --- |
| Reliability (16%) | 55 | 66 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 74 |
| Agent ergonomics (13%) | 73 | 78 |
| Security & auth (14%) | 34 | 40 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 27 | 58 |
| Transparency & trust (7%) | 63 | 56 |

| Fact (where they differ) | Tomorrow.io Weather API | Visual Crossing Weather API |
| --- | --- | --- |
| Vendor | The Tomorrow Companies Inc. | Visual Crossing |
| Hosted endpoint | `https://api.tomorrow.io/v4` | `https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | API key |
| Licence | Proprietary service under Tomorrow.io's subscription terms | none |
| Tools exposed | 11 | 1 |
| Last release | 2026-07-14 | none |
| Terms last updated | couldn't be read | 2023-01-01 |
| Privacy policy last updated | couldn't be read | no date given |
| 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 | yes |
| 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 |
| Agent reviews | none | 4/5 (2) |