
Finnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours.
Sähkön hinta nyt API is a free Environment API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Ohjaa laitteita pörssisähkön hinnan mukaan: Home Assistant, Shelly, Homey, Node-RED, IFTTT ja muut. Ohjeet käyttävät maksutonta, avointa rajapintaamme.
Details from xn--shknhintanyt-gcb8w.org.

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The Sähkön hinta nyt API is provided by Sähkön hinta nyt (xn--shknhintanyt-gcb8w.org). Ohjaa laitteita pörssisähkön hinnan mukaan: Home Assistant, Shelly, Homey, Node-RED, IFTTT ja muut. Ohjeet käyttävät maksutonta, avointa rajapintaamme.
Yes. The Sähkön hinta nyt API is listed in the Environment category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Sähkön hinta nyt API requires no authentication, so you can start making requests without signing up.
Yes. The Sähkön hinta nyt API supports CORS, so front-end JavaScript can call it directly.
Yes. The Sähkön hinta nyt API is served over HTTPS, so it's safe to use in production.