# Open-Meteo vs Pirate Weather (slim)

> Pirate Weather scores 65.9 (B) to Open-Meteo's 63.4 (B) for weather data. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather.md (~2,650 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather.json · canonical https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-01

Pirate Weather scores 65.9 (B) on agent readiness against Open-Meteo's 63.4 (B), and leads in 3 of 7 scored categories. Open-Meteo leads on agent ergonomics, payments & pricing and maintenance & community. Both do weather data.

- Open-Meteo: B 63.4, rank #394 of 950 · https://www.anchorterminal.com/tools/open-meteo.min.md
- Pirate Weather: B 65.9, rank #307 of 950 · https://www.anchorterminal.com/tools/pirate-weather.min.md
- Open-Meteo, good for Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup. Ahead on Agent ergonomics, 85 against 77; Payments & pricing, 50 against 30; Maintenance & community, 90 against 80. Also No key needed to call it.
- Pirate Weather, good for Agents and apps that want Dark Sky-shaped forecasts, model transparency and deep history on a small budget. Ahead on Reliability, 75 against 50; Schema & documentation, 85 against 77; Security & auth, 45 against 38. Also Free to start without a card.

| Category | Open-Meteo | Pirate Weather |
| --- | --- | --- |
| Reliability (16%) | 50 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 85 |
| Agent ergonomics (13%) | 85 | 77 |
| Security & auth (14%) | 38 | 45 |
| Payments & pricing (10%) | 50 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 90 | 80 |
| Transparency & trust (7%) | 72 | 68 |

| Fact (where they differ) | Open-Meteo | Pirate Weather |
| --- | --- | --- |
| Vendor | Open-Meteo | Pirate Weather |
| Hosted endpoint | `https://api.open-meteo.com/v1/forecast` | `https://api.pirateweather.net/forecast` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | None | API key |
| Licence | AGPL-3.0 (code), CC BY 4.0 (data) | Apache-2.0 (docs and spec), AGPL-3.0 (API code) |
| Last release | 2026-09-10 | 2026-09-23 |
| Terms last updated | no date given | couldn't be read |
| Privacy policy last updated | no date given | 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 | 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 | 6.2k stars | 907 stars |