--- title: Etherscan description: Instructions on how to integrate Etherscan.io data within Home Assistant. ha_category: - Finance ha_release: 0.47 ha_iot_class: Cloud Polling ha_domain: etherscan ha_platforms: - sensor ha_integration_type: integration related: - docs: /docs/configuration/ title: Configuration file ha_quality_scale: legacy --- The `Etherscan` sensor platform displays Ether and ERC-20 token balances from [Etherscan.io](https://etherscan.io). To add the Etherscan sensor to your installation, specify an Ethereum address to watch in the {% term "`configuration.yaml`" %} file. You can also optionally provide a token name to retrieve and ERC-20 token balance. If no token is provided then the balance retrieved will be in ETH. You can also optionally provide the token contract address in case the token name is not found. {% include integrations/restart_ha_after_config_inclusion.md %} ```yaml # Example configuration.yaml entry sensor: - platform: etherscan address: "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359" - platform: etherscan address: "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359" token: OMG - platform: etherscan address: "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359" token_address: "0xef68e7c694f40c8202821edf525de3782458639f" token: LRC ``` {% configuration %} address: description: Ethereum wallet address to watch. required: true type: string name: description: The name of the sensor used in the frontend. required: false type: string default: ETH Balance token: description: The ERC20 token symbol. i.e., OMG. required: false type: string token_address: description: The ERC20 token contract address. required: false type: string {% endconfiguration %}