Standard x402. Three calls.

import express from "express";
import { penni } from "@pennipay/x402/express";

const app = express();
app.use(penni({ siteId: process.env.PENNI_SITE_ID, apiKey: process.env.PENNI_API_KEY }));

// Priced in the dashboard: /premium/** at €0.05
app.get("/premium/report", (req, res) =>
  res.json({ report: "…", payer: res.locals.payment?.payer }));

import { Hono } from "hono";
import { penni, type PenniVariables } from "@pennipay/x402/hono";

const app = new Hono<{ Variables: PenniVariables }>();
app.use("/api/*", penni({ siteId: process.env.PENNI_SITE_ID, apiKey: process.env.PENNI_API_KEY }));

app.get("/api/forecast", (c) =>
  c.json({ tomorrow: "sunny", payer: c.get("payment")?.payer }));

// app/api/report/route.ts
import { getPayment, withPenni } from "@pennipay/x402/next";

const options = { siteId: process.env.PENNI_SITE_ID, apiKey: process.env.PENNI_API_KEY };

export const GET = withPenni(
  async (req: Request) => Response.json({ payer: getPayment(req)?.payer }),
  options,
);

// Cloudflare Workers, Bun, Deno
import { getPayment, withPenni } from "@pennipay/x402/fetch";

const handler = (req: Request) => Response.json({ payer: getPayment(req)?.payer });

export default {
  fetch: withPenni(handler, (req, env) => ({ siteId: env.PENNI_SITE_ID, apiKey: env.PENNI_API_KEY })),
};