| `ADDRESS_WITH_BALANCES`<br/>`_UPDATE_INTERVAL`| | Interval in seconds to restart the task, which calculates addresses with balances. | 30 * 60 | v1.3.9+ |
| `ADDRESS_WITH_BALANCES`<br/>`_UPDATE_INTERVAL`| | Interval in seconds to restart the task, which calculates addresses with balances. | 30 * 60 | v1.3.9+ |
| `LINK_TO_OTHER_EXPLORERS` | | true/false. If true, links to other explorers are added in the footer | (empty) | v1.3.0+ |
| `LINK_TO_OTHER_EXPLORERS` | | true/false. If true, links to other explorers are added in the footer | (empty) | v1.3.0+ |
| `COINMARKETCAP_PAGES` | | the number of pages on coinmarketcap to list in order to find token's price | 10 | v1.3.10+ |
| `COINMARKETCAP_PAGES` | | the number of pages on coinmarketcap to list in order to find token's price | 10 | v1.3.10+ |
| `CHAIN_SPEC_PATH` | | Chain specification path to import block emission reward ranges and genesis account balances from | (empty) | v2.0.3+ |
| `SUPPORTED_CHAINS` | | Array of supported chains that displays in the footer and in the chains dropdown. This var was introduced in this PR [#1900](https://github.com/poanetwork/blockscout/pull/1900) and looks like an array of JSON objects. | (empty) | v2.0.0+ |
| `SUPPORTED_CHAINS` | | Array of supported chains that displays in the footer and in the chains dropdown. This var was introduced in this PR [#1900](https://github.com/poanetwork/blockscout/pull/1900) and looks like an array of JSON objects. | (empty) | v2.0.0+ |
| `BLOCK_COUNT_CACHE_PERIOD ` | | time to live of cache in seconds. This var was introduced in [#1876](https://github.com/poanetwork/blockscout/pull/1876) | 600 | v2.0.0+ |
| `BLOCK_COUNT_CACHE_PERIOD ` | | time to live of cache in seconds. This var was introduced in [#1876](https://github.com/poanetwork/blockscout/pull/1876) | 600 | v2.0.0+ |
| `ALLOWED_EVM_VERSIONS ` | | the comma-separated list of allowed EVM versions for contracts verification. This var was introduced in [#1964](https://github.com/poanetwork/blockscout/pull/1964) | "homestead, tangerineWhistle, spuriousDragon, byzantium, constantinople, petersburg" | v2.0.0+ |
| `ALLOWED_EVM_VERSIONS ` | | the comma-separated list of allowed EVM versions for contracts verification. This var was introduced in [#1964](https://github.com/poanetwork/blockscout/pull/1964) | "homestead, tangerineWhistle, spuriousDragon, byzantium, constantinople, petersburg" | v2.0.0+ |