---
title: "Frequency"
method: GET
path: "/frequency"
tags: ["power"]
---

# Frequency

`GET /frequency`

Returns the frequency measured at Fraunhofer ISE in Freiburg, Germany. Currently only the frequency in RG Continental Europe (formerly UCTE) is available. The data is available in 1 second timesteps from 1st of May 2022 onwards.
    


    

Response schema:
    

 ```json
{
  "unix_seconds": list[int],
  "data": list[float],
  "deprecated": bool
}
```

## Query parameters

- `region` string
- `start` string
- `end` string

## Response `200`

Successful Response

- FrequencyModel
  - `unix_seconds` integer[], nullable
  - `data` number[], required
  - `deprecated` boolean, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/energy-charts/apis/energy-charts-api.md) · [All operations](https://skmtc.net/energy-charts/apis/energy-charts-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/energy-charts/energy-charts-api/versions/ebf9e22a0925/schema)