This table is horizontally scrollable, version information is located in the last column.
Variable | Required | Description | Default | Version | Need recompile | Deprecated in Version |
| ​ | Specifies the transport for blockscout to connect to the Ethereum Node. Available transports are |
| v2.1.1+ | ​ | v3.1.0 |
| ​ | the number of pages on coinmarketcap to list in order to find token's price | 10 | v1.3.10+ | ​ | v2.0.4 |
| ​ | CoinGecko coin id required for fetching an exchange rate | poa-network | v2.0.4+ | ​ | v2.1.0+ |
| ​ | Environment variable for the main network icon or testnet icon. Two options are | _network_icon.html | All | ​ | v2.0.0+ |
| ​ | Emission rewards contract address. This env var is used only if |
| v2.0.4+ | ​ | v3.1.0 |
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