Composite Backtest

{
  "custom_weights": {
    "CORR": 0.5,
    "EFF": 1,
    "FLOW": 1.5,
    "FUT": 1,
    "OB": 0.5,
    "OPT": 0.5,
    "TR": 2,
    "VOL": 1
  },
  "daily": [
    {
      "avg_score": 0.0213,
      "day": "2026-01-01",
      "n_bearish": 9,
      "n_bullish": 14,
      "n_total": 198,
      "top_asset": "BTC",
      "top_score": 0.6842
    },
    {
      "avg_score": 0.0341,
      "day": "2026-01-02",
      "n_bearish": 7,
      "n_bullish": 17,
      "n_total": 198,
      "top_asset": "SOL",
      "top_score": 0.7215
    }
  ],
  "default_weights": {
    "CORR": 0.08,
    "EFF": 0.14,
    "FLOW": 0.16,
    "FUT": 0.12,
    "OB": 0.09,
    "OPT": 0.11,
    "TR": 0.18,
    "VOL": 0.12
  },
  "from": "2026-01-01",
  "horizon": "7d",
  "ok": true,
  "performance": {
    "custom": {
      "avg_assets_triggered": 24.7,
      "avg_daily_return": 0.0042,
      "cumulative_return": 0.3738,
      "hit_rate": 0.5618,
      "max_drawdown": 0.0387,
      "sharpe": 1.2143,
      "total_days": 89
    },
    "default": {
      "avg_assets_triggered": 24.7,
      "avg_daily_return": 0.0035,
      "cumulative_return": 0.3115,
      "hit_rate": 0.5506,
      "max_drawdown": 0.0412,
      "sharpe": 1.0421,
      "total_days": 89
    },
    "equal_weight": {
      "avg_assets_triggered": 24.7,
      "avg_daily_return": 0.0021,
      "cumulative_return": 0.1869,
      "hit_rate": 0.5169,
      "max_drawdown": 0.0541,
      "sharpe": 0.6238,
      "total_days": 89
    }
  },
  "threshold": 0.05,
  "to": "2026-03-31"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://cryptyx.ai/api/signals/composite/backtest' \
  -H 'content-type: application/json' \
  --data-raw '{"from":"","horizon":"","threshold":0,"to":"","weights":{}}'

# 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://cryptyx.ai/api/signals/composite/backtest' \
  -H 'content-type: application/json' \
  --data-raw '{"from":"","horizon":"","threshold":0,"to":"","weights":{}}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fcryptyx.ai%2Fapi%2Fsignals%2Fcomposite%2Fbacktest&method=POST
const res = await pay("https://cryptyx.ai/api/signals/composite/backtest", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "from": "",
    "horizon": "",
    "threshold": 0,
    "to": "",
    "weights": {}
  }),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://cryptyx.ai/api/signals/composite/backtest",
        json={
            "from": "",
            "horizon": "",
            "threshold": 0,
            "to": "",
            "weights": {},
        },
    )
    print(res.status_code, res.text)