Crypto spot prices from CoinGecko and parsed SEC EDGAR filings, one paid lookup at a time. $0.001 for a price snapshot, $0.003 for a company's recent filings — decoded, summarized, and linked. No API key, no account, no subscription.
git clone https://github.com/nirholas/x402-markets
cd x402-markets && npm install
npm run dev| Route | Price | Returns |
|---|---|---|
GET /price/:coinId | $0.001 | Spot price, 1h/24h/7d change, 24h high–low range, volume, market cap, supply, and distance from all-time high and low |
GET /filings/:ticker | $0.003 | Company identity (CIK, SIC, exchanges) plus recent filings with form, dates, direct document link, decoded 8-K items, and a plain-English summary |
GET /, GET /health, GET /.well-known/x402 |
free | Service info, liveness, discovery manifest |
Every paid route returns the purchased artifact in the 200 response body.
The 402 challenge advertises both. Your client picks whichever it can sign.
base-sepolia · base on mainnetsolana · solana-devnet on devnetimport { wrapFetchWithPayment, createSigner } from "x402-fetch";
const signer = await createSigner("base-sepolia", process.env.PRIVATE_KEY!);
const payFetch = wrapFetchWithPayment(fetch, signer);
const res = await payFetch(
"http://localhost:4023/price/bitcoin"
);
const artifact = await res.json(); // purchased artifact, in-response