Data your AI
agents can buy.

Agents are the customer.

Price-insensitive. Awake at 3am. They never charge back, never churn over a UI, never ban. x402 turns any HTTP endpoint into a metered product an LLM agent can pay for autonomously — the moment it needs the data.

Real-time collectibles price feed.

Each call returns live median + per-store matches across tracked shops for Funko, TCG, LEGO, keyboards, vinyl, and aquatics — the kind of fresh, structured market data agents actually pay for.

GET /api/check?niche=funko&q=batman
# 200 (after payment)
{
  "paid": true, "feed": "collectibles-price",
  "data": { "ok": true, "niche": "funko",
    "retail": { "min": 8.99, "max": 49.99, "median": 20, "shops": 7 },
    "matches": [ { "store": "...", "price": 8.99, "url": "...", "title": "..." } ] } }

How an agent consumes it.

1. Request the resource. GET https://x402.dropwatchhq.com/api/check?niche=funko&q=batman
2. Receive 402. Body lists accepts[] — scheme exact, network base, amount, asset (USDC), payTo.
3. Sign & pay. Agent builds an EIP-3009 transferWithAuthorization, signs (EIP-712), base64-encodes the payload.
4. Retry with X-PAYMENT. Same URL, header carries the signed payload. Server verifies via the facilitator.
5. Get 200 + data. Plus an X-PAYMENT-RESPONSE settlement receipt header.

# The x402 SDKs do all of this automatically:
import { wrapFetchWithPayment } from "x402-fetch";
const fetchWithPay = wrapFetchWithPayment(fetch, walletClient);
const r = await fetchWithPay("https://x402.dropwatchhq.com/api/check?niche=funko&q=batman");
const data = await r.json(); // paid + returned in one call

One call, one price.

per successful API call · paid in USDC on Base · 10000 atomic units (6-decimal). No subscription, no minimum.

Listed for the Bazaar.

x402 has a discovery layer — the Bazaar — where agents auto-find paid resources. This endpoint exposes /.well-known/x402 and /llms.txt so it's register-ready. Listing step: submit the resource URL + price descriptor to the Bazaar directory once a live Base wallet is attached.