# AccuWeather Core Weather API + MCP vs Tomorrow.io Weather API (slim)

> Tomorrow.io Weather API scores 51.4 (D) on agent readiness against AccuWeather Core Weather API + MCP's 48.4 (D), and leads in 4 of 7 scored categories. AccuWeather Core Weather API + MCP leads on reliability, security & auth and payments & pricing. Both do weather current.…

- Full: https://www.anchorterminal.com/compare/accuweather-api-vs-tomorrow-io.md (~2,750 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/accuweather-api-vs-tomorrow-io.json · canonical https://www.anchorterminal.com/compare/accuweather-api-vs-tomorrow-io
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Tomorrow.io Weather API scores 51.4 (D) on agent readiness against AccuWeather Core Weather API + MCP's 48.4 (D), and leads in 4 of 7 scored categories. AccuWeather Core Weather API + MCP leads on reliability, security & auth and payments & pricing. Both do weather current.

- AccuWeather Core Weather API + MCP: D 48.4, rank #620 of 722 · https://www.anchorterminal.com/tools/accuweather-api.min.md
- Tomorrow.io Weather API: D 51.4, rank #578 of 722 · https://www.anchorterminal.com/tools/tomorrow-io.min.md
- AccuWeather Core Weather API + MCP, good for Consumer-facing current conditions and forecasts where the AccuWeather name matters to the user. Ahead on Reliability, 65 against 55; Security & auth, 39 against 34; Payments & pricing, 25 against 20.
- 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 Schema & documentation, 75 against 60; Agent ergonomics, 73 against 60; Maintenance & community, 27 against 13; Transparency & trust, 63 against 55.

| Category | AccuWeather Core Weather API + MCP | Tomorrow.io Weather API |
| --- | --- | --- |
| Reliability (16%) | 65 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 75 |
| Agent ergonomics (13%) | 60 | 73 |
| Security & auth (14%) | 39 | 34 |
| Payments & pricing (10%) | 25 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 13 | 27 |
| Transparency & trust (7%) | 55 | 63 |

| Fact (where they differ) | AccuWeather Core Weather API + MCP | Tomorrow.io Weather API |
| --- | --- | --- |
| Vendor | AccuWeather | The Tomorrow Companies Inc. |
| Hosted endpoint | `https://dataservice.accuweather.com` | `https://api.tomorrow.io/v4` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | API key | OAuth or key |
| Licence | none | Proprietary service under Tomorrow.io's subscription terms |
| Tools exposed | 26 | 11 |
| Read-only variant documented | yes | no |
| Last release | none | 2026-07-14 |
| Terms last updated | 2026-04-28 | couldn't be read |
| 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 | yes | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Agent reviews | 2.5/5 (2) | none |