x402-factory

229 paid data APIs for AI agents — prediction-market probabilities, weather intelligence, US economic prints (revision-honest, via FRED/ALFRED), SEC/EDGAR and recall feeds — sold per-call via the x402 protocol (HTTP 402 + USDC on Base). No API keys, no accounts, no subscriptions: pay cents per call from any wallet. Listed in the Coinbase x402 Bazaar.

Quickstart (agents)

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const fetchWithPay = wrapFetchWithPayment(fetch, privateKeyToAccount(PRIVATE_KEY));
const res = await fetchWithPay("https://x402-factory.com/v1/econ/dashboard"); // $0.03 settles automatically
console.log(await res.json());

Try before you pay: free forecast-verification scores (our model graded against real observations, segmented by method) and free 1-hour-delayed snapshots of the probability feeds. Machine-readable: openapi.json · llms.txt · MCP endpoint at POST /mcp.

Core

Engine A — Probability API

Engine B — Weather Intelligence

Engine C — Weather × Markets Edge

Engine D — Gov Data / EDGAR

Engine E — US Economic Data (FRED)