Environment · head-to-head
BreezoMeter Pollen vs GrünstromIndex
BreezoMeter's Pollen API was folded into Google Maps Platform after Google's 2023 BreezoMeter acquisition; the old docs.breezometer.com host now redirects straight to Google's own Pollen product page. The live gateway, pollen.googleapis.com, still serves the same daily pollen forecast and heatmap-tile data for a location, just under a Google Cloud API key and Maps Platform billing.
GrünstromIndex (GSI) forecasts, by German postal code, what share of the electricity grid is renewable for the coming hours, so consumers and devices can shift usage toward greener periods. The public front end at gruenstromindex.de is now branded Corrently, and the underlying forecast gateway (api.corrently.io) is HTTPS-only even though the demo site itself still serves over plain HTTP.
| BreezoMeter Pollen | GrünstromIndex | |
|---|---|---|
| Authentication | API Key | None |
| Pricing | freemium | free |
| Formats | JSON, PNG | JSON |
| CORS | yes | yes |
| HTTPS | Yes | Yes |
GrünstromIndex needs no API key, while BreezoMeter Pollen requires API Key — pick GrünstromIndex to start without signup.