Confidence Histogram Snapshot Compare

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://medien.halowerk.com/v1/baumarkt/media/confidence-histogram/snapshot-compare' \
  -H 'content-type: application/json' \
  --data-raw '{"baseline":{"media":{"duration_seconds":8},"words":[{"confidence":0.95,"end":0.7,"speaker":0,"start":0.2,"word":"Hello."}]},"duration_minutes":1,"language":"en","source":{"url":"https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"}}'

# 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://medien.halowerk.com/v1/baumarkt/media/confidence-histogram/snapshot-compare' \
  -H 'content-type: application/json' \
  --data-raw '{"baseline":{"media":{"duration_seconds":8},"words":[{"confidence":0.95,"end":0.7,"speaker":0,"start":0.2,"word":"Hello."}]},"duration_minutes":1,"language":"en","source":{"url":"https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"}}' \
  | 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 $0.031 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.031" });
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 $0.031 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fmedien.halowerk.com%2Fv1%2Fbaumarkt%2Fmedia%2Fconfidence-histogram%2Fsnapshot-compare&method=POST
const res = await pay("https://medien.halowerk.com/v1/baumarkt/media/confidence-histogram/snapshot-compare", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "baseline": {
      "media": {
        "duration_seconds": 8
      },
      "words": [
        {
          "confidence": 0.95,
          "end": 0.7,
          "speaker": 0,
          "start": 0.2,
          "word": "Hello."
        }
      ]
    },
    "duration_minutes": 1,
    "language": "en",
    "source": {
      "url": "https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"
    }
  }),
});
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 $0.031 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.031"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://medien.halowerk.com/v1/baumarkt/media/confidence-histogram/snapshot-compare",
        json={
            "baseline": {
                "media": {
                    "duration_seconds": 8,
                },
                "words": [
                    {
                        "confidence": 0.95,
                        "end": 0.7,
                        "speaker": 0,
                        "start": 0.2,
                        "word": "Hello.",
                    },
                ],
            },
            "duration_minutes": 1,
            "language": "en",
            "source": {
                "url": "https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav",
            },
        },
    )
    print(res.status_code, res.text)