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).
ERC-20 contract address for the quote asset (hex string, 20 bytes, no 0x prefix).
Range Filters (mutually exclusive)
Starting block number (inclusive) for the query. Use with to_block.
Ending block number (inclusive) for the query. Use with from_block.
Starting timestamp (ISO-8601). If it falls between blocks, the next block after this timestamp is used. Use with to_timestamp.
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
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.
ERC-20 contract address of the quote asset.
Echo of request metadata applied to the response.
EVM chain ID echoed from the request.
Normalized block/timestamp bounds derived from the request.
Filter parameters echoed from the request.
Data
VWAP aggregates matching the request.
BlockDB pool identifier. Present for per-pool windows.
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).
Input token address (hex, 20 bytes, no 0x prefix).
Output token address (hex, 20 bytes, no 0x prefix).
Volume-weighted average price for the interval (token_out per 1 token_in, decimals-adjusted). Returned as a string to preserve precision.
Total traded token_in in the bucket (decimals-adjusted). Returned as a string to preserve precision.
Total received token_out in the bucket (decimals-adjusted). Returned as a string to preserve precision.
Number of swaps contributing to the VWAP.
Tracing identifier for the VWAP row (hex string, no 0x prefix).
Record creation timestamp (ISO-8601).
Record update timestamp (ISO-8601).
Envelope Fields
Number of VWAP entries returned.
Usage Notes
- For USD VWAP buckets, use
/evm/prices/spot/fiat/vwap (0501).
- VWAP is returned per pool when
filters.pool_uids is supplied, otherwise aggregates may span pools where the implementation allows.
curl -X POST "https://api.blockdb.io/v1/evm/prices/spot/crypto/vwap" \
-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": 200,
"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,
"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_in": "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"token_out": "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"price_vwap": "3024.112233445566778899",
"total_volume_in": "580.000000000000000000",
"total_volume_out": "1750000.000000000000000000",
"trade_count": 142,
"_tracing_id": "0405000000000000000000000000000000000001",
"_created_at": "2025-11-11T19:00:05.000Z",
"_updated_at": "2025-11-11T19:00:05.000Z"
}
],
"cursor": null,
"count": 1
}