# meteoblue Weather API vs Weatherbit API

> meteoblue Weather API scores 61.7 (C) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability. Both do weather current. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit
- Markdown: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.md (~2,700 tokens)
- Slim: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

meteoblue Weather API scores 61.7 (C) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability. Both do weather current.

- meteoblue Weather API: grade C, 61.7/100, rank #360 of 722. Markdown https://www.anchorterminal.com/tools/meteoblue.md · JSON https://www.anchorterminal.com/api/v1/tools/meteoblue.json
- Weatherbit API: grade C, 57.7/100, rank #466 of 722. Markdown https://www.anchorterminal.com/tools/weatherbit.md · JSON https://www.anchorterminal.com/api/v1/tools/weatherbit.json

## Which one, for what

### meteoblue Weather API (C)

Good for: Energy, agriculture and marine applications that need solar, wind, soil, sea or ensemble variables at a point, with history back to 1940 on a paid plan.

Ahead on:
- Schema & documentation, 77 against 72
- Agent ergonomics, 66 against 61
- Security & auth, 51 against 39
- Maintenance & community, 57 against 21

Watch for: The key is accepted only as the `apikey` query parameter, so it appears in URLs and logs unless request signing is switched on

### Weatherbit API (C)

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 75

Also in its favour:
- Free to start without a card

Watch for: The key is accepted only as the `key` query parameter, and the spec lists plain http as a scheme


## Score by category

| Category | Weight | meteoblue Weather API | Weatherbit API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 75 | 91 | Weatherbit API +16 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 77 | 72 | meteoblue Weather API +5 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 61 | meteoblue Weather API +5 |
| Security & auth | 14% (17.5 this run) | 51 | 39 | meteoblue Weather API +12 |
| Payments & pricing | 10% (12.5 this run) | 34 | 30 | meteoblue Weather API +4 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 57 | 21 | meteoblue Weather API +36 |
| Transparency & trust | 7% (8.8 this run) | 61 | 63 | Weatherbit API +2 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **61.7 · C** | **57.7 · C** | |

## Facts side by side

| Fact | meteoblue Weather API | Weatherbit API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | meteoblue AG | Weatherbit LLC |
| Hosted endpoint | `https://my.meteoblue.com` | `https://api.weatherbit.io/v2.0` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MIT | 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 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-08-22 | 2025-08-01 |
| Terms last updated | 2018-05-24 | 2025-05-01 |
| Privacy policy last updated | 2024-05-15 | 2023-12-26 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 8 stars, 512 PyPI/wk | 78 PyPI/wk |

## Verdicts

**meteoblue Weather API.** Eight of the APIs publish OpenAPI 3.1 specs, and the Forecast API spec lists the credit cost of every package. A public Pingdom page shows monthly uptime per API. The key travels only in the query string, the free trial covers nine forecast packages, and no security.txt, certification or DPA was found.

**Weatherbit API.** A read-only weather API with a Swagger 2.0 spec, quota headers on every response and a status page showing 100 per cent on three API monitors over 90 days. The key travels only in the query string, the free plan allows 50 requests a day for non-commercial use, and the last dated API announcement is 1 August 2025.

## Before you call either

### meteoblue Weather API

1. Pass `lat`, `lon` and `apikey` to `https://my.meteoblue.com/packages/<package>`. Join packages with commas, such as `basic-1h,basic-day`, to get several in one call
2. Budget credits before calling. One call costs 4,000 to 96,000 credits by package, and the free trial holds 10 million for a year. Read `MB-Credits-Accounted` on each response
3. Set `forecastDays` and pick the coarsest resolution that does the job. Without it the API returns every forecast day it has
4. Call with a 30-second timeout, wait 30 seconds after an error and stop after 10 retries, as the availability page advises. The default limit is 500 calls a minute
5. Keep the key out of logs, since it is part of every URL. Ask for a shared secret and send `expire` and `sig` if URLs may be seen by others

### Weatherbit API

1. Pass lat and lon. City, postal code and station lookups are accepted, but the docs recommend coordinates and mark station ID as use with caution
2. Read X-RateLimit-Remaining and X-RateLimit-Reset on each response. Daily quotas reset at 00:00 UTC and a spent quota returns 429 until then
3. Treat HTTP 204 with an empty body as no data found, not as an error
4. Split historical requests into ranges of one month or less. History needs the Plus plan or higher and has its own daily quota
5. Keep the key out of logs. It is part of the URL on every call, so always use https://api.weatherbit.io/v2.0

## Questions

### Which is better for AI agents, meteoblue Weather API or Weatherbit API?

meteoblue Weather API scores 61.7 (C) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability.

### Do meteoblue Weather API and Weatherbit API need an API key?

Both need an API key.

### Can an agent call meteoblue Weather API and Weatherbit API without installing anything?

Yes. meteoblue Weather API has a hosted endpoint at https://my.meteoblue.com and Weatherbit API at https://api.weatherbit.io/v2.0.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "meteoblue", "b": "weatherbit"}`. From a terminal: `anchor compare meteoblue weatherbit`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/meteoblue.json and https://www.anchorterminal.com/api/v1/tools/weatherbit.json

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