ToolVet
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Etf Flows

by etf-flows in Onchain & crypto

x402 APIPassing, checked 40 min ago

Daily net creation/redemption flow for spot Bitcoin or Ethereum ETFs, computed from each issuer's own holdings disclosure: per-fund and total net flow in USD and coin for the latest day, a recent series and the window cumulative. One normalized call instead of polling each issuer site and differencing units.

GET https://api.agentstools.dev/etf/flows

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
24 ms typical, 24 ms slowest 5%
Last check
40 min ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://api.agentstools.dev/etf/flows?asset=btc&region=us"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentstools.dev%2Fetf%2Fflows
const res = await pay("https://api.agentstools.dev/etf/flows?asset=btc&region=us");
console.log(await res.json());

Example input

{
  "asset": "btc",
  "region": "us"
}

Example output

{
  "asset": "btc",
  "coin": "BTC",
  "cumulative_window_usd": 305120000,
  "funds": [
    {
      "history_days": 10,
      "latest_flow_coin": 2129.5,
      "latest_flow_usd": 135049000,
      "ticker": "IBIT"
    }
  ],
  "latest": {
    "as_of_date": "2026-07-17",
    "funds": [
      "IBIT",
      "ARKB"
    ],
    "total_flow_coin": 2129.5,
    "total_flow_usd": 135049000
  },
  "partial": false,
  "region": "us",
  "series_days": 9
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
40 min agoPassed40224 ms$0.01
6 h agoPassed40227 ms$0.01