tounify.io API

Electricity tariff and day-ahead price data across Europe. The interactive reference on this page needs JavaScript. Everything it renders comes from the OpenAPI document, which you can read directly: /openapi/v2.json (JSON) · /openapi/v2.yaml (YAML) · /llms.txt (plain text, written for LLM agents).

Authentication

Every /v2 endpoint takes Authorization: Bearer <token>. Register at cockpit.tounify.io/register to be issued a testing token immediately — no credit card and no sales call.

Endpoints

{country} is an ISO 3166-1 alpha-2 code (DE, GB) and {sector} is one of consumption, feedin, grid. A tariff belongs to a company, so listing tariffs needs the company id.

GET /v2/{country}/{sector}/companies
GET /v2/{country}/{sector}/{company}/tariffs
GET /v2/{country}/{sector}/{tariff}/versions
GET /v2/{country}/dayahead?consumption_tariff=...&include=fees,vat

GET /public/country-stats     # no token required — which countries carry data

Base URL https://api.tounify.io. The /v1 endpoints are deprecated; new integrations should use /v2.