Market Size

Estimate the size of a U.S. household market using Census data, e.g. renter households in a county or high-income families with children in a state. Returns the strongest defensible result available: an official Census estimate or a direct ACS PUMS survey estimate with a 90% margin of error. Custom criteria combinations work for states, PUMAs and counties made of whole PUMAs. Unsupported requests

Open endpoint ↗

Price per call: $0.01
Chain: Base
Method: POST
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://agent-vending-production.up.railway.app/v1/market-size", { method: "POST" });
console.log(await res.json());

https://agent-vending-production.up.railway.app/v1/market-size