Snapshot X402 Demand

{
  "by_category": [
    {
      "calls_30d": 5900,
      "category": "crypto-price",
      "services": 120
    }
  ],
  "median_calls_30d": 3,
  "opportunities": [
    {
      "category": "media",
      "services": 12,
      "signal": "established-demand",
      "unique_payers_30d": 63,
      "unique_payers_per_service": 5.2
    }
  ],
  "pricing": {
    "median_buyer_price_usd": 0.05,
    "premium_ceiling_usd": 0.3,
    "premium_unique_payers": 41,
    "sub_10c_unique_payers": 612
  },
  "services_seen": 337,
  "top_buyers": [
    {
      "calls_30d": 144,
      "category": "crypto-price",
      "price_usd": 0.001,
      "resource": "https://…",
      "unique_payers": 56
    }
  ],
  "top_services": [
    {
      "calls_30d": 3985,
      "category": "crypto-price",
      "price_usd": 0.01,
      "resource": "https://…",
      "unique_payers": 3
    }
  ],
  "total_calls_30d": 7000,
  "window_days": 30
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://shop.netlobo.com/snapshot/x402-demand'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://shop.netlobo.com/snapshot/x402-demand' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.25 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.25" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.25 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fshop.netlobo.com%2Fsnapshot%2Fx402-demand
const res = await pay("https://shop.netlobo.com/snapshot/x402-demand");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.25 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.25"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://shop.netlobo.com/snapshot/x402-demand")
    print(res.status_code, res.text)