Composite Attribution

{
  "asof_day": "2026-06-18",
  "asset": "BTC",
  "classes": [
    {
      "class": "TR",
      "class_meta": {
        "sigma": 0.31
      },
      "class_score": 0.6124,
      "n_signals": 18,
      "n_triggered": 4,
      "weight": 0.24,
      "weighted_contribution": 0.146976
    },
    {
      "class": "VOL",
      "class_meta": {
        "sigma": 0.28
      },
      "class_score": -0.3812,
      "n_signals": 12,
      "n_triggered": 2,
      "weight": 0.18,
      "weighted_contribution": -0.068616
    },
    {
      "class": "FLOW",
      "class_meta": {
        "sigma": 0.22
      },
      "class_score": 0.2103,
      "n_signals": 9,
      "n_triggered": 1,
      "weight": 0.15,
      "weighted_contribution": 0.031545
    }
  ],
  "health": {
    "TR_MOMO_CONT_14D": {
      "health_grade": "A",
      "hit_rate": 0.642,
      "ic": 0.1842,
      "is_anti_predictive": false,
      "operational_grade": "B",
      "predictive_grade": "A",
      "signal_id": "TR_MOMO_CONT_14D"
    },
    "TR_ROC_180D": {
      "health_grade": "B",
      "hit_rate": 0.591,
      "ic": 0.1124,
      "is_anti_predictive": false,
      "operational_grade": "A",
      "predictive_grade": "B",
      "signal_id": "TR_ROC_180D"
    },
    "VOL_COMPRESSION_7v30": {
      "health_grade": "A",
      "hit_rate": 0.618,
      "ic": 0.1532,
      "is_anti_predictive": false,
      "operational_grade": "A",
      "predictive_grade": "A",
      "signal_id": "VOL_COMPRESSION_7v30"
    }
  },
  "horizon": "7d",
  "master": {
    "n_classes": 8,
    "rank": 3,
    "score": 0.4231
  },
  "ok": true,
  "signals": [
    {
      "class": "TR",
      "confidence": 0.731,
      "intensity": 0.1178,
      "quality_weight": 0.0875,
      "signal_id": "TR_MOMO_CONT_14D",
      "triggered": true,
      "walk_forward": {
        "asof_day": "2026-06-20",
        "ic_delta": -0.0264,
        "is_hit_rate": 0.561,
        "is_ic": 0.0876,
        "is_n_obs": 18900,
        "is_n_triggers": 612,
        "oos_hit_rate": 0.542,
        "oos_ic": 0.0612,
        "oos_n_obs": 8100,
        "oos_n_triggers": 184,
        "overfit_ratio": 0.699,
        "reliability_grade": "green",
        "split_pct": 0.7,
        "window_days": 180
      },
      "z": 1.842
    },
    {
      "class": "TR",
      "confidence": 0.682,
      "intensity": 0.0589,
      "quality_weight": 0.0612,
      "signal_id": "TR_ROC_180D",
      "triggered": true,
      "z": 1.412
    },
    {
      "class": "VOL",
      "confidence": 0.654,
      "intensity": -0.0581,
      "quality_weight": 0.0721,
      "signal_id": "VOL_COMPRESSION_7v30",
      "triggered": true,
      "z": -1.231
    },
    {
      "class": "FLOW",
      "confidence": 0.31,
      "intensity": 0,
      "quality_weight": 0.0481,
      "signal_id": "FLOW_VWAP_DEV_7D",
      "triggered": false,
      "z": 0.412
    }
  ],
  "ts_class_metrics": {
    "FLOW": {
      "avg_ts_ic": 0.1103,
      "ts_a": 3,
      "ts_b": 6,
      "ts_df": 2
    },
    "TR": {
      "avg_ts_ic": 0.1421,
      "ts_a": 8,
      "ts_b": 14,
      "ts_df": 3
    },
    "VOL": {
      "avg_ts_ic": 0.0982,
      "ts_a": 4,
      "ts_b": 9,
      "ts_df": 5
    }
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://cryptyx.ai/api/signals/composite/attribution?asset=&day=&horizon='

# 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 - 'https://cryptyx.ai/api/signals/composite/attribution?asset=&day=&horizon=' \
  | 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%2Fattribution
const res = await pay("https://cryptyx.ai/api/signals/composite/attribution?asset=&day=&horizon=");
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.get("https://cryptyx.ai/api/signals/composite/attribution?asset=&day=&horizon=")
    print(res.status_code, res.text)