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Spot Bitcoin ETF flows. Daily net flows, cumulative flow, AUM with per-fund breakdown (IBIT, FBTC, GBTC)

Changed on

Spot Bitcoin ETF flows. Daily net flows, cumulative flow, AUM with per-fund breakdown (IBIT, FBTC, GBTC). Spot Bitcoin ETF flow data for research agents. Alias for GET /api/context?briefing=btc.etf-flows. Paid per request over x402 or MPP with no API key, or read with a key on the Basic plan or above.

get/api/btc/etf

Request

  • Base URL
    https://api.prereason.com
  • Auth
    HTTP bearer

Query parameters

format'json' | 'markdown'

Response format (json or markdown). Default is markdown.

datestring

A past date, YYYY-MM-DD: the briefing as of the end of that day (UTC; a company's numbers at the end of the day in its own market), for the periods released by then. Each figure says when it was public, or that it may be a later revision PreReason holds in its place. For a period's latest figures, including later corrections, leave date out. Tier-gated access.

Response

btc.etf-flows data

Changes

  • cfe83f781312Revision changes
    • warning

      removed the optional property / from the response with the status

    • warning

      removed the optional property / from the response with the status

  • 0c21c73770c6Revision changes
    • info

      added the optional property to the response with the status