x402-farm

10 pay-per-call APIs that AI agents pay for autonomously — via the x402 protocol (USDC on Base). No account, no API key, no subscription: the agent gets an HTTP 402, signs a micro-payment, retries. Live at https://x402-farm.vercel.app.

Also ships an MCP server so Claude / Cursor / any MCP client can use these as paid tools.

The 10 APIs

Route	Price	What it does
POST /v1/extract	$0.005	URL → main content as clean markdown (JS-rendered, real browser)
POST /v1/render	$0.005	URL → full HTML after JavaScript execution
POST /v1/screenshot	$0.01	URL → PNG (optional fullPage)
POST /v1/pdf	$0.01	URL → A4 PDF
POST /v1/links	$0.005	URL → deduplicated links, internal/external + anchor text
POST /v1/meta	$0.005	URL → SEO meta, OpenGraph, canonical, JSON-LD
GET /v1/fr/entreprise?q=	$0.02	French company lookup by name or SIREN/SIRET: officers, NAF, HQ, status
GET /v1/fr/geocode?q=	$0.005	Geocode any French address incl. overseas territories
GET /v1/dns?domain=	$0.005	Full DNS records: A, AAAA, MX, TXT, NS, SPF
GET /v1/email/validate?email=	$0.005	Email validation: syntax + MX (no email sent)

Free (no payment): GET / (JSON catalog) · /llms.txt · /openapi.json · POST /free/extract · GET /free/entreprise (truncated previews).

Pay from an agent

import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

const pay = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(privateKeyToAccount(PK)) }],
});
const r = await pay("https://x402-farm.vercel.app/v1/dns?domain=example.com");
console.log(await r.json()); // paid $0.005 in USDC, got the data

Use as an MCP server (Claude / Cursor)

{
  "mcpServers": {
    "x402-farm": {
      "command": "npx",
      "args": ["-y", "github:Ghost11777/x402-farm"],
      "env": {
        "X402_PRIVATE_KEY": "0x…",
        "X402_FARM_URL": "https://x402-farm.vercel.app"
      }
    }
  }
}

Without X402_PRIVATE_KEY, only the free preview tool works. With a funded Base USDC wallet, every tool pays per call from that wallet.

Run it yourself

npm install && npx playwright install chromium
cp .env.example .env      # set PAY_TO to your USDC address; leave empty for free dev mode
npm start

Deploy: vercel deploy --prod (serverless Chromium via @sparticuz/chromium) or docker build -t x402-farm . && docker run -p 3402:3402 --env-file .env x402-farm.

Notes

• NETWORK=eip155:8453 (Base mainnet) uses the Coinbase CDP facilitator; eip155:84532 (Base Sepolia) uses the public x402.org facilitator for testing.
• Anti-SSRF guard blocks private/link-local addresses. In-memory TTL cache. Browser concurrency semaphore.
• Listed on x402scan.

MIT