api.cryptoetfsentinel.com

Crypto ETF Sentinel — Chronological profile evolution for one US spot crypto ETF issuer: custodian, fee, AP-count and in-kind deltas across successive POS AM filings. Use when tracing how a fund's terms changed over time (fee cuts, custodian switches). Pass the issuer's SEC CIK as cik; optional limit.

Open endpoint ↗

Price per call: $0.05
Chain: Base
Method: GET
Paid calls · 30 days: 3

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/history", { method: "GET" });
console.log(await res.json());

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