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POST
/
v1
/
evm
/
raw
/
logs
curl -X POST "https://api.blockdb.io/v1/evm/raw/logs" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "from_block": 12345678,
  "to_block": 12345999,
  "from_timestamp": "2025-10-29T00:00:00Z",
  "to_timestamp": "2025-11-11T00:00:00Z",
  "block_numbers": [
    12345678,
    12345679
  ],
  "tx_hashes": [
    "7b5c0972efb6a0b5be4a4d4a0de5d1abd922478a53f32b2c717a800c862ba9e0"
  ],
  "contract_addresses": [
    "0000000000000000000000000000000000000000"
  ],
  "topic_zeros": [
    "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
  ],
  "limit": 200,
  "cursor": null
}'

{
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_block": 12345678,
      "to_block": 12345999,
      "from_timestamp": "2025-10-29T00:00:00Z",
      "to_timestamp": "2025-11-11T00:00:00Z"
    },
    "filters": {
      "block_numbers": [
        12345678,
        12345679
      ],
      "tx_hashes": [
        "7b5c0972efb6a0b5be4a4d4a0de5d1abd922478a53f32b2c717a800c862ba9e0"
      ],
      "contract_addresses": [
        "0000000000000000000000000000000000000000"
      ],
      "topic_zeros": [
        "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      ]
    }
  },
  "data": [
    {
      "block_number": 12345678,
      "block_time": "2025-11-11T18:42:15.123Z",
      "tx_index": 4,
      "log_index": 0,
      "contract_address": "0000000000000000000000000000000000000000",
      "topic_zero": "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      "data_topics": [
        "0000000000000000000000000000000000000000000000000000000000000000",
        "0000000000000000000000000000000000000000000000000000000000000001"
      ],
      "data": "00000000000000000000000000000000000000000000000000000000000003e8",
      "_tracing_id": "0103000000000000000000000000000000000000",
      "_created_at": "2025-11-11T18:42:15.123Z",
      "_updated_at": "2025-11-11T18:42:15.123Z"
    }
  ],
  "cursor": null,
  "page_count": 1
}

​
Overview

​
Parameters

​
chain_id
number
required
Target EVM network. See the Chain enumeration for supported values.

​
Range Filters (mutually exclusive)

​
from_block
number
Starting block number (inclusive) for the query. Use with to_block.
​
to_block
number
Ending block number (inclusive) for the query. Use with from_block.
​
from_timestamp
string
Starting timestamp (ISO-8601). If it falls between blocks, the next block after this timestamp is used. Use with to_timestamp.
​
to_timestamp
string
Ending timestamp (ISO-8601). If it falls between blocks, the last block before this timestamp is used. Use with from_timestamp.
Validation rule:
Every request must include at least one primary criterion: a block range (from_block/to_block), a time range (from_timestamp/to_timestamp), block_numbers, or tx_hashes. A block range and a time range are mutually exclusive, as are block_numbers and tx_hashes.
contract_addresses and topic_zeros are refinement filters that require a block range or time range specifically — they cannot be used on their own, and a block_numbers/tx_hashes set does not satisfy this (an unbounded scan over a hot contract or topic would time out).
Providing none of the above results in HTTP 400.

​
Bounding Windows

​
block_numbers
number[]
Explicit set of block numbers (a bounding window). Mutually exclusive with tx_hashes.
​
tx_hashes
string[]
Filter logs by parent transaction hash (hex string, 32 bytes, no 0x prefix); a bounding window. Mutually exclusive with block_numbers.

​
Contract & Topic Filters

​
contract_addresses
string[]
Filter by emitting contract address (hex string, 20 bytes, no 0x prefix). Requires a block range or time range.
​
topic_zeros
string[]
Filter by the primary event topic. Anonymous events have topic_zero = null. Requires a block range or time range.

​
Pagination Controls

​
limit
number
default:"250"
Recommended default 250; maximum 1000 to stay under ~10 MB responses.
​
cursor
string
Opaque pagination cursor supplied by a previous response.

​
Response Fields

​
Meta

​
meta
object
Echo of request metadata applied to the response.
​
meta.chain_id
number
EVM chain ID echoed from the request.
​
meta.request_window
object
Pure echo of the window you sent (from_block/to_block/from_timestamp/to_timestamp); unset bounds are null.
​
meta.resolved_window
object | null
The concrete window the query actually executed against, after resolving the request. For a block range on a time-bucketed endpoint (OHLC/VWAP/VWAP-aggregate/fiat VWAP), from_timestamp/to_timestamp hold the resolved timestamp window (and from_block/to_block echo your request). For a time range on a block-keyed endpoint, from_block/to_block hold the resolved block range (and the timestamps echo your request). null for selector-only requests (no window). No extra database work is done — these are the values the query already computed.
​
meta.resolved_window.from_block
number | null
Resolved/echoed start block of the executed window.
​
meta.resolved_window.to_block
number | null
Resolved/echoed end block of the executed window.
​
meta.resolved_window.from_timestamp
string | null
Resolved/echoed start timestamp (ISO-8601) of the executed window.
​
meta.resolved_window.to_timestamp
string | null
Resolved/echoed end timestamp (ISO-8601) of the executed window.
​
meta.filters
object
Filters echoed from the request (block numbers, tx hashes, contract addresses, topics).

​
Data

​
data
object[]
Each element mirrors the table columns (chain implied by meta.chain_id). Resolve transaction hash via block_number + tx_index and the transactions dataset if needed — there is no tx_hash column in SQL.
​
data.block_number
number
Block height containing the log.
​
data.block_time
string
Block timestamp joined from the blocks table for easier aggregation.
​
data.tx_index
number
Zero-based index of the parent transaction within the block.
​
data.log_index
number
Position of the log within the transaction.
​
data.contract_address
string
Address of the emitting contract (20 bytes).
​
data.topic_zero
string
Primary topic hash identifying the event (32 bytes). null for anonymous events.
​
data.data_topics
string[]
Subsequent event topics (topics[1..n]), each stored as a 32-byte hex string.
​
data.data
string
Raw event data payload (hex string (no 0x prefix)).
​
data._tracing_id
string
Tracing identifier for the canonical transaction record (hex string, no 0x prefix).
​
data._created_at
string
Record creation timestamp.
​
data._updated_at
string
Record last update timestamp.

​
Envelope Fields

​
cursor
string | null
Cursor token for pagination.
​
page_count
number
Number of records returned in data.
curl -X POST "https://api.blockdb.io/v1/evm/raw/logs" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "from_block": 12345678,
  "to_block": 12345999,
  "from_timestamp": "2025-10-29T00:00:00Z",
  "to_timestamp": "2025-11-11T00:00:00Z",
  "block_numbers": [
    12345678,
    12345679
  ],
  "tx_hashes": [
    "7b5c0972efb6a0b5be4a4d4a0de5d1abd922478a53f32b2c717a800c862ba9e0"
  ],
  "contract_addresses": [
    "0000000000000000000000000000000000000000"
  ],
  "topic_zeros": [
    "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
  ],
  "limit": 200,
  "cursor": null
}'

{
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_block": 12345678,
      "to_block": 12345999,
      "from_timestamp": "2025-10-29T00:00:00Z",
      "to_timestamp": "2025-11-11T00:00:00Z"
    },
    "filters": {
      "block_numbers": [
        12345678,
        12345679
      ],
      "tx_hashes": [
        "7b5c0972efb6a0b5be4a4d4a0de5d1abd922478a53f32b2c717a800c862ba9e0"
      ],
      "contract_addresses": [
        "0000000000000000000000000000000000000000"
      ],
      "topic_zeros": [
        "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      ]
    }
  },
  "data": [
    {
      "block_number": 12345678,
      "block_time": "2025-11-11T18:42:15.123Z",
      "tx_index": 4,
      "log_index": 0,
      "contract_address": "0000000000000000000000000000000000000000",
      "topic_zero": "ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      "data_topics": [
        "0000000000000000000000000000000000000000000000000000000000000000",
        "0000000000000000000000000000000000000000000000000000000000000001"
      ],
      "data": "00000000000000000000000000000000000000000000000000000000000003e8",
      "_tracing_id": "0103000000000000000000000000000000000000",
      "_created_at": "2025-11-11T18:42:15.123Z",
      "_updated_at": "2025-11-11T18:42:15.123Z"
    }
  ],
  "cursor": null,
  "page_count": 1
}
Last modified on May 29, 2026