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GET
/
v1
/
metrics
/
etf-flows-usd
Etf Flows Usd
curl --request GET \
  --url https://api.blockworks.com/v1/metrics/etf-flows-usd \
  --header 'x-api-key: <api-key>'
{
  "projectName": [
    {
      "date": "2025-08-10",
      "value": 123456.789
    },
    {
      "date": "2025-08-11",
      "value": 234567.89
    },
    {
      "date": "2025-08-12",
      "value": 345678.901
    }
  ]
}

​
Overview

  • Denomination: USD
  • Type: USD Value
  • Interval: Daily
  • Source: Farside UK

​
Example Request

curl -H "x-api-key: YOUR_API_KEY" \
  "https://api.blockworks.com/v1/metrics/etf-flows-usd?project=GBTC"

​
Example Response

{
  "gbtc": [
    {
      "date": "2025-11-18",
      "value": 0
    },
    {
      "date": "2025-11-17",
      "value": -34500000
    },
    {
      "date": "2025-11-14",
      "value": -25100000
    }
  ]
}

​
Notes

  • Intervals are daily unless otherwise noted.
  • Data is updated daily and may be revised after late-arriving data.

Authorizations

​
x-api-key
string
header
required

Query Parameters

​
project
enum<string>
required

Project slug (comma-separated for multiple).

Available options:
ARKB,
BITB,
BRRR,
BTC,
BTCO,
BTCW,
CETH,
ETH,
ETHA,
ETHE,
ETHV,
ETHW,
EZBC,
EZET,
FBTC,
FETH,
GBTC,
HODL,
IBIT,
QETH,
SSK
Example:

"ARKB"

​
start_date
string<date>

Start date (YYYY-MM-DD)

​
end_date
string<date>

End date (YYYY-MM-DD)

Response

OK

​
{key}
object[]