Xrpl Mpt

{
  "issuances": [
    {
      "decimals": 2,
      "flags": {
        "can_clawback": false,
        "can_escrow": false,
        "can_lock": false,
        "can_trade": false,
        "can_transfer": true,
        "locked": false,
        "require_auth": false
      },
      "max_supply": 40000000000,
      "metadata": {
        "ac": "other",
        "ai": {
          "ai": "2026-09-30T14:42:58.241Z",
          "at": "utility",
          "cust": "user_wallet",
          "hw": "rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV",
          "jr": "United States",
          "mod": "general",
          "ms": 40000000000,
          "purpose": "tradeable",
          "sv": "1.0.0",
          "transferable": true,
          "vu": null
        },
        "d": "CiteFleet utility token for platform-funded customer operations. Total supply: 40 billion BOTC; 2 billion operating allocation and 38 billion escrow reserve. Customers receive 2,000 BOTC for normal operations; each customer button event returns 0.005 BOTC to the issuer for burning; refill to 2,000 B…",
        "i": "https://xrptokenizer.app/icon.png",
        "in": "XRPTokenizer",
        "n": "BOTC",
        "t": "BOTC"
      },
      "mpt_issuance_id": "060B0AE49FE7F2B50E46A1E9127A580EB575FA6850C683F7",
      "outstanding": 0,
      "transfer_fee_pct": 0
    },
    {
      "decimals": 6,
      "flags": {
        "can_clawback": false,
        "can_escrow": true,
        "can_lock": false,
        "can_trade": false,
        "can_transfer": true,
        "locked": false,
        "require_auth": false
      },
      "max_supply": 40000000000,
      "metadata": {
        "ac": "other",
        "ai": {
          "ai": "2026-10-05T13:28:03.909Z",
          "at": "utility",
          "cust": "user_wallet",
          "dynamicMptImmutableFlags": "omitted_mainnet_feature_disabled",
          "escrowGenesisUnits": "38000000000000000",
          "fixedSupply": true,
          "jr": "United States",
          "mod": "x40am",
          "ms": 40000000000,
          "operationsGenesisUnits": "1000000000000000",
          "owner": "XRPTokenizer.app",
          "purpose": "tradeable",
          "releaseIntervalDays": 30,
          "releaseTranches": 38,
          "returnUnusedSalesBeforeRelease": true,
          "salesGenesisUnits": "1000000000000000",
          "settlementGenesisUnits": "0",
          "sv": "1.0.0",
          "transferable": true,
          "vu": 5
        },
        "d": "Native utility token of XRPTokenizer.app for customer messaging and platform services.",
        "i": "https://xrptokenizer.app/icon.png",
        "in": "XRPTokenizer",
        "n": "X40AM Utility Token",
        "t": "X40AM"
      },
      "mpt_issuance_id": "060B0AE59FE7F2B50E46A1E9127A580EB575FA6850C683F7",
      "outstanding": 0,
      "transfer_fee_pct": 0
    }
  ],
  "issuances_count": 2,
  "issuer": "rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV",
  "source": "XRP Ledger (public node xrplcluster.com)"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/xrpl-mpt' \
  -H 'content-type: application/json' \
  --data-raw '{"issuer":"rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV"}'

# 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 - -X POST 'https://api.vextorium.com/v1/xrpl-mpt' \
  -H 'content-type: application/json' \
  --data-raw '{"issuer":"rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV"}' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Fxrpl-mpt&method=POST
const res = await pay("https://api.vextorium.com/v1/xrpl-mpt", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "issuer": "rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV"
  }),
});
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/v1/xrpl-mpt",
        json={
            "issuer": "rE2WJYnYCbBf75ZA2U8QtnGug6tWrfKLcV",
        },
    )
    print(res.status_code, res.text)