Overview
Parameters
Target EVM chain. See the Chain enumeration for supported values.
ERC-20 contract address for the base asset (hex string, 20 bytes, no 0x prefix).
Fiat currency code for the quote leg.
Range Filters (mutually exclusive)
Starting block number (inclusive) for the query window.
Ending block number (inclusive) for the query window.
Starting timestamp (ISO-8601). If it falls between blocks, the next block after this timestamp is used.
Ending timestamp (ISO-8601). If it falls between blocks, the last block before this timestamp is used.
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
Restrict to specific BlockDB pool identifiers.
Recommended default 250; maximum 1000 to stay under ~10 MB responses.
Opaque pagination cursor supplied by a previous response.
Response Fields
ERC-20 contract address of the base asset.
Fiat currency code for the quote leg.
Echo of request metadata applied to the response.
EVM chain ID echoed from the request.
Block/timestamp bounds derived from the request.
Filters applied to the query (exchange IDs, pool UIDs).
Data
Fiat VWAP rows matching the request.
Block number of the first contributing event in the window.
Block time of the first contributing event (ISO-8601).
Transaction index of the first contributing event.
Log index of the first contributing event.
Block number of the last contributing event in the window.
Block time of the last contributing event (ISO-8601).
Transaction index of the last contributing event.
Log index of the last contributing event.
Inclusive UTC start of the VWAP bucket (ISO-8601).
ERC-20 token address (hex, 20 bytes, no 0x prefix).
VWAP in USD for the bucket. Returned as a string to preserve precision.
Notional USD volume used in the VWAP weighting. Returned as a string to preserve precision.
Minimum hop count from the stablecoin price anchor.
Number of contributing token-to-token VWAP edges.
Tracing identifier for the row (hex string, no 0x prefix).
Record creation timestamp (ISO-8601).
Record update timestamp (ISO-8601).
Envelope Fields
Number of VWAP entries returned.
curl -X POST "https://api.blockdb.io/v1/evm/prices/spot/fiat/vwap" \
-H "Authorization: Bearer $BLOCKDB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"chain_id": 1,
"base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"quote_currency_code": "USD",
"from_block": 18930000,
"to_block": 18939999,
"exchange_ids": [
1,
2
],
"pool_uids": [
"88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
],
"limit": 200,
"cursor": null
}'
{
"base_token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"quote_currency_code": "USD",
"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,
"first_block_number": 18930000,
"first_block_time": "2025-11-11T18:00:11.000Z",
"first_tx_index": 12,
"first_log_index": 5,
"last_block_number": 18939999,
"last_block_time": "2025-11-11T18:59:48.000Z",
"last_tx_index": 44,
"last_log_index": 2,
"bucket_start": "2025-11-11T18:00:00.000Z",
"bucket_seconds": 3600,
"token_address": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"price_usd": "3024.112233445566778899",
"total_notional_usd": "1750000.000000000000000000",
"hops": 2,
"sources_count": 4,
"_tracing_id": "0501000000000000000000000000000000000001",
"_created_at": "2025-11-11T19:00:05.000Z",
"_updated_at": "2025-11-11T19:00:05.000Z"
}
],
"cursor": null,
"count": 1
}