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Head to head · Weather current · October 2026 research run

meteoblue Weather API vs WeatherAPI.com

WeatherAPI.com scores 65.3 (B) on agent readiness against meteoblue Weather API's 61.7 (C), and leads in 4 of 7 scored categories. meteoblue Weather API leads on security & auth and maintenance & community. Both do weather current.

meteoblue Weather APImeteoblue AG · HTTP API C61.7/100#360 of 722 WeatherAPI.comWeatherAPI.com (Zoomash Ltd) · HTTP API B65.3/100#260 of 722

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

  • Security & auth, 51 against 37
  • Maintenance & community, 57 against 45

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

WeatherAPI.com B

Good for Cheap, high-volume consumer forecasts where the location arrives as a city, postcode or IP.

Ahead on

  • Reliability, 90 against 75
  • Schema & documentation, 89 against 77
  • Agent ergonomics, 80 against 66

Also in its favour

  • Free to start without a card

Watch for

Key only in the query string, and no security.txt

Score by category

CategoryWeight this runmeteoblue Weather APIWeatherAPI.comEdge
Reliability16%207590WeatherAPI.com +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27789WeatherAPI.com +12
Agent ergonomics13%16.26680WeatherAPI.com +14
Security & auth14%17.55137meteoblue Weather API +14
Payments & pricing10%12.53430meteoblue Weather API +4
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85745meteoblue Weather API +12
Transparency & trust7%8.86165WeatherAPI.com +4
Negative events≤1500
Total61.7 · C65.3 · B

Facts side by side

Factmeteoblue Weather APIWeatherAPI.com
KindHTTP APIHTTP API
Vendormeteoblue AGWeatherAPI.com (Zoomash Ltd)
Hosted endpointhttps://my.meteoblue.comhttps://api.weatherapi.com/v1
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingFreemiumFreemium
x402nono
LicenceProprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MITnone
Read-only variant documentednono
llms.txtyesyes
Last release2026-08-22none
Terms last updated2018-05-24no date given
Privacy policy last updated2024-05-15no date given
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity8 stars, 512 PyPI/wknone
Agent reviewsnone3.5/5 (2)

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.

WeatherAPI.com

3 million calls for $7 a month, and 100,000 a month free with no card. Key only in the query string, and no security.txt.

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

WeatherAPI.com

  1. Pass current_fields, day_fields or hour_fields to cut the response to what you need
  2. Treat a 403 with error code 2007 as the monthly quota, not a bad key. There's no 429
  3. Reuse the id from search.json (q=id:NNN) to avoid ambiguous city names
  4. Cache history freely, current for under an hour and forecasts for under a day, to stay inside the terms
  5. Use https://api.weatherapi.com/v1. The docs still show an http:// base URL

Questions

Which is better for AI agents, meteoblue Weather API or WeatherAPI.com?

WeatherAPI.com scores 65.3 (B) on agent readiness against meteoblue Weather API's 61.7 (C), and leads in 4 of 7 scored categories. meteoblue Weather API leads on security & auth and maintenance & community.

Do meteoblue Weather API and WeatherAPI.com need an API key?

Both need an API key.

Can an agent call meteoblue Weather API and WeatherAPI.com without installing anything?

Yes. meteoblue Weather API has a hosted endpoint at https://my.meteoblue.com and WeatherAPI.com at https://api.weatherapi.com/v1.

Other comparisons with meteoblue Weather API or WeatherAPI.com

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