Environment · head-to-head
BreezoMeter Pollen vs National Grid ESO
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.
This is Great Britain's electricity system operator's open-data portal, publishing generation mix, demand forecasts, and grid balancing datasets. The operator was transferred to public ownership and rebranded the National Energy System Operator (NESO) on 1 October 2024; the old data.nationalgrideso.com host no longer resolves at all, with the same CKAN data portal now living at neso.energy/data-portal. Its real CKAN gateway at api.neso.energy returns Access-Control-Allow-Origin: * on every response, resolving cors unknown -> yes.
| BreezoMeter Pollen | National Grid ESO | |
|---|---|---|
| Authentication | API Key | None |
| Pricing | freemium | free |
| Formats | JSON, PNG | JSON, CSV |
| CORS | yes | yes |
| HTTPS | Yes | Yes |
National Grid ESO needs no API key, while BreezoMeter Pollen requires API Key — pick National Grid ESO to start without signup.