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io.github.praneeth12098/x402-factory

Official registry Maps, travel and weather

200+ x402 paid data APIs for AI agents: prediction markets, verified weather, econ, SEC filings

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http x402-factory 'https://x402-factory.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "x402-factory": {
            "type": "http",
            "url": "https://x402-factory.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. x402-factory clients
  2. Judge it before you pay — the free proof surfaces
  3. Quickstart (TypeScript)
  4. MCP
  5. Agent skill
  6. Honesty contract

x402-factory clients

Typed clients, worked examples, and an agent skill for x402-factory.com — 200+ paid data APIs for AI agents (prediction-market probabilities, weather intelligence, US economic prints, SEC/EDGAR and recall feeds), sold per-call via the x402 protocol (HTTP 402 + USDC on Base). No API keys, no accounts: cents per call from any wallet.

Judge it before you pay — the free proof surfaces

The platform publishes its own scorecards, free forever:

  • Forecast verification — every forecast scored against real NWS station observations, segmented by lead/region/method/model-version: /v1/verification/scores. Under the current model the station blend beats raw NWS at short leads (as of 2026-10-15, 90-day rolling window, on the nws-blend segment — the same-sample paired comparison against the NWS baseline: temperature MAE 0.84 vs 1.14 °C at 1-hour lead, n=3,506; 0.89 vs 1.16 at 3h; converging to NWS parity by 24h — the decay the method predicts. Recompute it yourself: filter the live table to segment nws-blend).
  • Model-vs-market calibration gate — market classes are sold only when their own resolved history proves calibrated; the full reliability table (and what is currently withheld, with reasons) is public: /v1/edge/calibration.
  • Free delayed feeds and change-probes on the probability catalog.

Quickstart (TypeScript)

import { X402FactoryClient } from "./ts/client.js";
// Free routes need nothing:
const free = new X402FactoryClient();
console.log(await free.verificationScores());
// Paid routes need any funded wallet via @x402/fetch:
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const paid = new X402FactoryClient({
  fetch: wrapFetchWithPayment(fetch, privateKeyToAccount(process.env.PK as `0x${string}`)),
});
console.log(await paid.get("/v1/econ/dashboard")); // $0.03, settles automatically

Python: see py/client.py. Worked examples (free routes only, run as-is): examples/.

MCP

Remote MCP endpoint: POST https://x402-factory.com/mcp (streamable HTTP, stateless JSON). Free and delayed tools return data; paid tools return a structured payment_required pointer with the HTTP route and price — the mirror is a free funnel, not a paywall bypass. Rate limit: 30 req/min.

Agent skill

skill/ packages the catalog as a task-oriented skill: discovery mode with no wallet (free routes only) and paid mode through your existing x402 wallet tooling with a per-call cap. MIT-0.

Honesty contract

Every response carries meta.sources and meta.data_mode; method labels are end-to-end truthful (NWS passthrough is labeled as such); skill claims appear only where measured, with n, on the free proof surfaces. License: MIT.

Frequently asked questions

What is io.github.praneeth12098/x402-factory?

200+ x402 paid data APIs for AI agents: prediction markets, verified weather, econ, SEC filings

How do I install io.github.praneeth12098/x402-factory?

It runs as a remote server. In Claude Code: claude mcp add --transport http x402-factory 'https://x402-factory.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.praneeth12098/x402-factory need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.praneeth12098/x402-factory open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.praneeth12098/x402-factory?

It is published by praneeth12098. AI.tn lists it but does not maintain or endorse it.

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