api.cryptoetfsentinel.com

Crypto ETF Sentinel — Bulk POS AM-extracted operational profiles for every trading US spot crypto ETF: custodian, sponsor fee, authorized-participant counts, basket size, in-kind eligibility. Use when comparing fund plumbing across the whole trading universe in one call. Extraction quality varies by field (in-kind ~32% TP, AP roster ~70% TP).

Open endpoint ↗

Price per call: $0.50
Chain: Base
Method: GET
Paid calls · 30 days: 2

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://api.cryptoetfsentinel.com/v1/profiles/latest", { method: "GET" });
console.log(await res.json());

https://api.cryptoetfsentinel.com/v1/profiles/latest