---
title: "BTC ETF Flows"
method: GET
path: "/api/btc/etf"
tags: ["Short URLs"]
---

# BTC ETF Flows

`GET /api/btc/etf`

Alias for `GET /api/context?briefing=btc.etf-flows`. Basic tier.

## Query parameters

- `format` 'json' | 'markdown'
- `date` string

## Response `200`

btc.etf-flows data

## Other responses

- `401` — Authentication required
- `402` — Payment required. The body is an x402 v2 payment quote naming this resource, its price in USDC, and the accepted networks. Pay and retry with the payment header, or authenticate with an API key instead.

---

[API](https://skmtc.dev/prereason/apis/prereason-api.md) · [All operations](https://skmtc.dev/prereason/apis/prereason-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/prereason/prereason-api/revisions/2a607b0906fc/schema)