Voice Clone Check

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://creator.halowerk.com/v1/voice-clone-check' \
  -H 'content-type: application/json' \
  --data-raw '{"candidate_embedding":[0.2,-0.38,0.69,0.08,0.4],"pitch_contour_correlation":0.82,"reference_embedding":[0.18,-0.42,0.73,0.11,0.36],"spectral_distance_0_1":0.14,"timing_distance_0_1":0.19}'

# 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://creator.halowerk.com/v1/voice-clone-check' \
  -H 'content-type: application/json' \
  --data-raw '{"candidate_embedding":[0.2,-0.38,0.69,0.08,0.4],"pitch_contour_correlation":0.82,"reference_embedding":[0.18,-0.42,0.73,0.11,0.36],"spectral_distance_0_1":0.14,"timing_distance_0_1":0.19}' \
  | 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%2Fcreator.halowerk.com%2Fv1%2Fvoice-clone-check&method=POST
const res = await pay("https://creator.halowerk.com/v1/voice-clone-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "candidate_embedding": [
      0.2,
      -0.38,
      0.69,
      0.08,
      0.4
    ],
    "pitch_contour_correlation": 0.82,
    "reference_embedding": [
      0.18,
      -0.42,
      0.73,
      0.11,
      0.36
    ],
    "spectral_distance_0_1": 0.14,
    "timing_distance_0_1": 0.19
  }),
});
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://creator.halowerk.com/v1/voice-clone-check",
        json={
            "candidate_embedding": [
                0.2,
                -0.38,
                0.69,
                0.08,
                0.4,
            ],
            "pitch_contour_correlation": 0.82,
            "reference_embedding": [
                0.18,
                -0.42,
                0.73,
                0.11,
                0.36,
            ],
            "spectral_distance_0_1": 0.14,
            "timing_distance_0_1": 0.19,
        },
    )
    print(res.status_code, res.text)