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GET
https://api.etherscan.io
/
v2
/
api
curl "https://api.etherscan.io/v2/api?chainid=1&module=block&action=getblocknobytime&timestamp=1578638524&closest=before&apikey=YourApiKeyToken"

{
  "status": "1",
  "message": "OK",
  "result": "9251482"
}

​
Query Parameters

​
apikey
string
default:"YourApiKeyToken"
Your Etherscan API key.
​
chainid
string
default:"1"
Chain ID you query, eg 1 for Ethereum, 8453 for Base from our supported chains.
​
module
string
default:"block"
Set to block for this endpoint.
​
action
string
default:"getblocknobytime"
Set to getblocknobytime for this endpoint.
​
timestamp
integer
default:"1578638524"
Unix timestamp in seconds.
​
closest
string
default:"before"
Closest available block to the provided timestamp, either before or after.
curl "https://api.etherscan.io/v2/api?chainid=1&module=block&action=getblocknobytime&timestamp=1578638524&closest=before&apikey=YourApiKeyToken"

{
  "status": "1",
  "message": "OK",
  "result": "9251482"
}