Five patterns. Five wallets. Zero accounts.

# Excerpt from a trip-planning agent's tool definition
@tool
def provision_travel_data(country: str, days: int) -> dict:
    """Buy mobile data for the user's upcoming trip."""
    plan = pick_plan(country=country, min_days=days)

    r = httpx.post(X402_API + "/order", json={"plan_id": plan.id})
    # 402 — pay from agent's budget wallet
    pay(to=r.headers["x-payto"],
        amount=r.headers["x-amount"],
        chain=r.headers["x-chain"])

    esim = poll_until_delivered(r.json()["order_id"])
    return {
        "qr_image_url": esim["qr_image_url"],
        "activation_link": esim["activation_link"],
        "expires_in_days": days,
    }

# Production VPS failover script
import psutil, time, httpx
from your_modem_ctl import insert_esim, send_via_modem

def primary_link_healthy():
    return psutil.net_if_stats().get("eth0").isup

while True:
    if primary_link_healthy():
        time.sleep(30)
        continue

    # Primary down. Buy emergency local data.
    region = detect_region_from_gps_or_geoip()  # e.g. "VN"
    r = httpx.post("https://api.esimahora.com/api/v1/x402/order",
                   json={"plan_id": f"{region}_3GB_15D"})
    pay_from_treasury(r.headers["x-payto"],
                      r.headers["x-amount"],
                      r.headers["x-chain"])
    esim = poll(r.json()["order_id"])
    insert_esim(esim["qr_code_data"])
    send_via_modem("Failover online")  # back online — alert ops

# Embedded kiosk firmware (Python on Raspberry Pi 5)
def on_geofence_enter(new_country):
    # Cross border into new country with no carrier coverage
    if not has_local_data():
        plan = f"{new_country}_3GB_15D"
        r = http_post(API + "/order", body={"plan_id": plan})
        wallet.send(r.headers["x-payto"],
                    r.headers["x-amount"],
                    chain=r.headers["x-chain"])
        esim = poll(r.json()["order_id"])
        modem.install_esim(esim["qr_code_data"])
        log("kiosk online in " + new_country)