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POST
/
v1
/
evm
/
prices
/
spot
/
crypto
/
prints
curl -X POST "https://api.blockdb.io/v1/evm/prices/spot/crypto/prints" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  "quote_token_address": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "from_block": 18930000,
  "to_block": 18939999,
  "exchange_ids": [
    1,
    2
  ],
  "pool_uids": [
    "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
  ],
  "limit": 250,
  "cursor": null
}'

{
  "base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  "quote_token_address": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_block": 18930000,
      "to_block": 18939999,
      "from_timestamp": null,
      "to_timestamp": null
    },
    "filters": {
      "exchange_ids": [
        1,
        2
      ],
      "pool_uids": [
        "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
      ]
    }
  },
  "data": [
    {
      "chain_id": 1,
      "pool_uid": "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000",
      "exchange_id": 1,
      "type_id": 201,
      "block_number": 18930123,
      "block_time": "2025-11-11T18:15:30.000Z",
      "tx_index": 5,
      "log_index": 12,
      "token_in": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
      "token_out": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "amount_in": "10000000000000000000",
      "amount_out": "30241122334455667788990",
      "exec_price": "3024.112233445566778899",
      "_tracing_id": "0302000000000000000000000000000000000001",
      "_parent_tracing_ids": [
        "0203000000000000000000000000000000000000"
      ],
      "_created_at": "2025-11-11T18:15:35.000Z",
      "_updated_at": "2025-11-11T18:15:35.000Z"
    }
  ],
  "cursor": null,
  "count": 1
}

​
Overview

​
Parameters

​
chain_id
number
required
Target EVM chain. See the Chain enumeration for supported values.
​
base_token_address
string
required
ERC-20 contract address for the base asset (hex string, 20 bytes, no 0x prefix).
​
quote_token_address
string
required
ERC-20 contract address for the quote asset (hex string, 20 bytes, no 0x prefix).

​
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:
You must provide either a block range, a time range, or at least one direct selector.
Providing more than one option results in HTTP 400.
Providing none results in HTTP 400.

​
Direct Selectors

​
exchange_ids
number[]
Filter by exchange identifiers. See the DigitalExchange enumeration.
​
pool_uids
string[]
Restrict to specific BlockDB pool identifiers.

​
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

​
base_token_address
string
ERC-20 contract address of the base asset.
​
quote_token_address
string
ERC-20 contract address of the quote asset.

​
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
Normalized block/timestamp bounds derived from the request.
​
meta.filters
object
Filter parameters echoed from the request.

​
Data

​
data
object[]
Swap print records matching the request.
​
data.chain_id
number
EVM chain identifier.
​
data.pool_uid
string
BlockDB pool identifier where the swap occurred.
​
data.exchange_id
number
Exchange/DEX identifier.
​
data.type_id
number
Pool type identifier.
​
data.block_number
number
Block height where the swap event was observed.
​
data.block_time
string
UTC timestamp of the block containing the swap.
​
data.tx_index
number
Zero-based transaction index within the block.
​
data.log_index
number
Zero-based log index within the transaction.
​
data.token_in
string
20-byte address of the input token (direction of trade).
​
data.token_out
string
20-byte address of the output token for this swap direction.
​
data.amount_in
string
Amount of token_in executed in the swap (decimals-adjusted). Returned as a string to preserve precision.
​
data.amount_out
string
Amount of token_out received in the swap (decimals-adjusted). Returned as a string to preserve precision.
​
data.exec_price
string | null
Realized execution price: token_out per 1 token_in (decimals-adjusted). May be null.
​
data._tracing_id
string
Tracing identifier for the swap print record (hex string, no 0x prefix).
​
data._parent_tracing_ids
string[]
Parent lineage references (hex strings, no 0x prefix).
​
data._created_at
string
Record creation timestamp (ISO-8601).
​
data._updated_at
string
Record update timestamp (ISO-8601).

​
Envelope Fields

​
cursor
string | null
Pagination cursor.
​
count
number
Number of swap print entries returned.

​
Usage Notes

  • Swap prints represent historical execution outcomes, not forward-looking quotes
  • Each print corresponds to a single on-chain swap event with directional pair information
  • Use exec_price to analyze realized slippage and execution quality
  • Filter by pool_uids to compare execution prices across different AMM pools
  • The token_in and token_out fields define the swap direction; reverse the pair to see the opposite direction
curl -X POST "https://api.blockdb.io/v1/evm/prices/spot/crypto/prints" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  "quote_token_address": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "from_block": 18930000,
  "to_block": 18939999,
  "exchange_ids": [
    1,
    2
  ],
  "pool_uids": [
    "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
  ],
  "limit": 250,
  "cursor": null
}'

{
  "base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
  "quote_token_address": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_block": 18930000,
      "to_block": 18939999,
      "from_timestamp": null,
      "to_timestamp": null
    },
    "filters": {
      "exchange_ids": [
        1,
        2
      ],
      "pool_uids": [
        "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
      ]
    }
  },
  "data": [
    {
      "chain_id": 1,
      "pool_uid": "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000",
      "exchange_id": 1,
      "type_id": 201,
      "block_number": 18930123,
      "block_time": "2025-11-11T18:15:30.000Z",
      "tx_index": 5,
      "log_index": 12,
      "token_in": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
      "token_out": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
      "amount_in": "10000000000000000000",
      "amount_out": "30241122334455667788990",
      "exec_price": "3024.112233445566778899",
      "_tracing_id": "0302000000000000000000000000000000000001",
      "_parent_tracing_ids": [
        "0203000000000000000000000000000000000000"
      ],
      "_created_at": "2025-11-11T18:15:35.000Z",
      "_updated_at": "2025-11-11T18:15:35.000Z"
    }
  ],
  "cursor": null,
  "count": 1
}
Last modified on March 21, 2026