home-assistant.io/source/_components/sensor.openexchangerates.markdown
arsaboo f4dcd0c8ac Added openexchangerates sensor documentation (#584)
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---
layout: page
title: "Open Exchange Rates"
description: "Instructions on how to integrate exchange rates from https://openexchangerates.org within Home Assistant."
date: 2016-06-23 10:00
sidebar: true
comments: false
sharing: true
footer: true
ha_category: Sensor
logo: openexchangerates.png
ha_iot_class: "Local Polling"
ha_release: 0.23
---
The `openexchangerates` sensor will show you the current exchange rate from [Open Exchange Rates](https://openexchangerates.org) that provides realtime exchange rates for [170 currencies](https://openexchangerates.org/currencies). The free account is limited to only USD as a base currency, allows 1000 requests per month, and updates every hour.
Obtain your API key [here](https://openexchangerates.org/signup)
To enable this sensor, add the following lines to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
sensor:
platform: openexchangerates
api_key: your_api_key
base: USD #optional
quote: EUR
name: USDEUR #optional
```
Configuration variables:
- **name** (*Optional*): Name to use in the frontend.
- **base** (*Optional*): The symbol of the base currency. Defaults to USD
- **quote** (*Required*): The symbol of the quote or target currency.