Private Send Reservations

{
  "credentials": {
    "creditToken": "<bearer used only for reservation refund or recovered Mini credits>"
  },
  "execution": {
    "appUrl": "https://hivemindos.app/private-send/",
    "asset": "USDC",
    "network": "Base",
    "publicRecipientMethod": "withdraw",
    "registeredRecipientMethod": "transfer",
    "sdk": "@veil-cash/[email protected]"
  },
  "ok": true,
  "priceUsd": 0.25,
  "receiptId": "pagw_sf_...",
  "reservation": {
    "amountUsdc": 25,
    "asset": "USDC",
    "feeUsd": 0.25,
    "id": "veil_send_...",
    "provingKeyBaseUrl": "https://hivemindos-paid-agent-gateway.hivemindos.workers.dev/assets/veil-keys/0.7.0/veil_send_.../veil_key_...",
    "recipientMode": "public",
    "status": "reserved"
  },
  "service": "private-send"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/private-send/reservations' \
  -H 'content-type: application/json' \
  --data-raw '{"amountUsdc":"25","recipientMode":"public"}'

# 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://hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/private-send/reservations' \
  -H 'content-type: application/json' \
  --data-raw '{"amountUsdc":"25","recipientMode":"public"}' \
  | 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%2Fhivemindos-paid-agent-gateway.hivemindos.workers.dev%2Fapi%2Fx402%2Fprivate-send%2Freservations&method=POST
const res = await pay("https://hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/private-send/reservations", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "amountUsdc": "25",
    "recipientMode": "public"
  }),
});
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.post(
        "https://hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/private-send/reservations",
        json={
            "amountUsdc": "25",
            "recipientMode": "public",
        },
    )
    print(res.status_code, res.text)