Net Url Parse

{
  "fragment": "top",
  "host": "example.com:8443",
  "hostname": "example.com",
  "is_https": true,
  "origin": "https://example.com:8443",
  "path": "/a/b",
  "path_segments": [
    "a",
    "b"
  ],
  "port": "8443",
  "query": "x=1&y=2&x=3",
  "query_params": {
    "x": [
      "1",
      "3"
    ],
    "y": [
      "2"
    ]
  },
  "scheme": "https",
  "url": "https://[email protected]:8443/a/b?x=1&y=2&x=3#top",
  "username": "user"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/net/url-parse?url=https%3A%2F%2Fuser%40example.com%3A8443%2Fa%2Fb%3Fx%3D1%26y%3D2%26x%3D3%23top'

# 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://saylorinnovations.com/api/net/url-parse?url=https%3A%2F%2Fuser%40example.com%3A8443%2Fa%2Fb%3Fx%3D1%26y%3D2%26x%3D3%23top' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Fnet%2Furl-parse
const res = await pay("https://saylorinnovations.com/api/net/url-parse?url=https%3A%2F%2Fuser%40example.com%3A8443%2Fa%2Fb%3Fx%3D1%26y%3D2%26x%3D3%23top");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/net/url-parse?url=https%3A%2F%2Fuser%40example.com%3A8443%2Fa%2Fb%3Fx%3D1%26y%3D2%26x%3D3%23top")
    print(res.status_code, res.text)