Find the block mined at or before any date or unix time on 16 EVM chains, with t
Find the block mined at or before any date or unix time on 16 EVM chains, with the gap in seconds, the next block and the chain's block interval.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
293 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/chain/block-at-time
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.01 | 293 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chain": "ethereum",
"timestamp": "2024-01-31T12:00:00Z"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"chain": {
"description": "chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id",
"type": "string"
},
"timestamp": {
"description": "unix seconds, unix milliseconds, or an ISO date such as 2024-01-31 or 2024-01-31T12:00:00Z",
"type": "string"
}
},
"required": [
"chain",
"timestamp"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"block_number": {
"description": "last block at or before that time",
"type": "number"
},
"block_time": {
"description": "that block's time, UTC",
"type": "string"
},
"chain": {
"description": "the chain name that was queried",
"type": "string"
},
"chain_id": {
"description": "EIP-155 chain id of that network",
"type": "number"
},
"latest_block": {
"description": "current chain tip",
"type": "number"
},
"lookups": {
"description": "node requests used",
"type": "number"
},
"next_block_number": {
"description": "the following block",
"type": [
"number",
"null"
]
},
"note": {
"description": "plain-language reading of the result",
"type": "string"
},
"requested_time": {
"description": "the time asked for, UTC",
"type": "string"
},
"seconds_before_request": {
"description": "gap between the block and the requested time",
"type": "number"
},
"source": {
"description": "where the data was read from or how it was computed",
"type": "string"
}
},
"required": [
"chain",
"chain_id",
"requested_time",
"block_number",
"block_time",
"seconds_before_request",
"note",
"source"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}