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GrünstromIndex

Hourly green-power forecast for German postcodes

🌦 WeatherUNMONITORED
AUTH NONECORS ✓AGENT ?HTTPS ✓COMMERCIAL ?

The Corrently GSI (Grünstromindex) endpoint forecasts the share of renewable electricity for a German postal code hour by hour, alongside wind/solar values, a CO2 estimate and an indicative energy price. Pass a zip code and get a JSON forecast array. Usage is governed by a fair-use policy, with paid tiers for higher limits.

—HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
GET https://api.corrently.io/v2.0/gsi/prediction?zip=70173

{
  "support": "If you have any question please contact dev@stromdao.com or visit https://premium.corrently.de/",
  "documentation": "https://corrently.io/books/grunstromindex",
  "forecast": [
    {
      "epochtime": 1783263600,
      "eevalue": 90,
      "ewind": 2,
      "esolar": 65,
      "gsi": 85.5,
      "co2_avg": 242.5
    }
  ]
}
Call itcurl · fetch · python
curl "https://api.corrently.io/v2.0/gsi/prediction?zip=70173"
const res = await fetch("https://api.corrently.io/v2.0/gsi/prediction?zip=70173");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.corrently.io/v2.0/gsi/prediction?zip=70173")
print(res.json())
Endpoints · 6On scheduleFULL DOCS ↗
On schedule — GET /gsi/prediction?zip=70173 awaits first probe
GET/gsi/prediction?zip=70173PROBED

Hourly green-power forecast for German postcodes

GET/gsi

Gsi — documented GET route.

GET/gsi/1

Gsi details by ID (example: 1).

GET/gsi?limit=10

Gsi — documented GET route.

GET/gsi/search?q=test

Search by query parameters.

GET/gsi/prediction?limit=5

Prediction — documented GET route.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

GrünstromIndex: common questions

Is GrünstromIndex free to use?

Yes — GrünstromIndex is a free weather API. Free tier: Free under fair-use policy. Whether the free tier allows commercial use is unclear — check the provider docs.

Does GrünstromIndex need an API key?

No — GrünstromIndex needs no API key or signup. You can call it straight away; rate limits still apply (Fair-use (paid tiers for higher limits)).

Can I call GrünstromIndex from the browser?

Yes — GrünstromIndex returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is GrünstromIndex up right now?

GrünstromIndex is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.