Blocks

Get Block Rewards by BlockNo

Returns the block reward and 'Uncle' block rewards.

https://api-sepolia-optimism.etherscan.io/api
   ?module=block
   &action=getblockreward
   &blockno=1209493
   &apikey=YourApiKeyToken

Try this endpoint in your browser 🔗

Request

Query Parameters

Parameter	Description
blockno	the integer block number to check block rewards for eg. 12697906

Response

Sample Response

{
  "status": "1",
  "message": "OK",
  "result": {
    "blockNumber": "1209493",
    "timeStamp": "1694221526",
    "blockMiner": "0x4200000000000000000000000000000000000011",
    "blockReward": "0",
    "uncles": [],
    "uncleInclusionReward": "0"
  }
}

​​ ⏳ Tip : The timestamp field is denoted in Unix timestamp.

Get Estimated Block Countdown Time by BlockNo

Returns the estimated time remaining, in seconds, until a certain block is mined.

https://api-sepolia-optimism.etherscan.io/api
   ?module=block
   &action=getblockcountdown
   &blockno=5309493
   &apikey=YourApiKeyToken

Try this endpoint in your browser 🔗

Request

Query Parameters

Parameter	Description
blockno	the integer block number to estimate time remaining to be mined eg. 12697906

Response

Sample Response

{
  "status": "1",
  "message": "OK",
  "result": {
    "CurrentBlock": "4420516",
    "CountdownBlock": "5309493",
    "RemainingBlock": "888977",
    "EstimateTimeInSec": "1777969.0"
  }
}

Get Block Number by Timestamp

Returns the block number that was mined at a certain timestamp.

https://api-sepolia-optimism.etherscan.io/api
   ?module=block
   &action=getblocknobytime
   &timestamp=1700574521
   &closest=before
   &apikey=YourApiKeyToken

Try this endpoint in your browser 🔗

Request

Query Parameters

Parameter	Description
timestamp	the integer representing the Unix timestamp in seconds.
closest	the closest available block to the provided timestamp, either before or after

⏳ Tip : Convert a regular date-time to a Unix timestamp.

Response

Sample Response

{
   "status":"1",
   "message":"OK",
   "result":"4385990"
}