ToolVet
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Edge Backtest

by x402-factory in Markets & finance

x402 APIPassing, checked 30 min ago

Historical performance of the edge signal: hit rate, calibration, by hazard — Aggregates stored edge signals whose markets have resolved: how often the model beat the market (hit rate), average absolute-error improvement (edge captured), a model calibration curve, and per-hazard breakdowns. model_label is explicit about which model produced the signals.

GET https://x402-factory.com/v1/edge/backtest

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
217 ms typical, 401 ms slowest 5%
Last check
30 min ago
Next check
any minute now

How to call it

GET https://x402-factory.com/v1/edge/backtest

Each call costs $0.05 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://x402-factory.com/v1/edge/backtest?window=90

Parameters

ParameterTypeRequiredDescription
min_divergencenumberNo
windowintegerNo Default: 90.

Example response

The provider's example. We can't check it without paying.

Example response, 71 lines
{
  "data": {
    "avg_edge_captured": 0.0022,
    "by_hazard": [
      {
        "hazard": "temp_above",
        "hit_rate": 0.521,
        "n": 584
      },
      {
        "hazard": "any_precip",
        "hit_rate": 0.483,
        "n": 292
      },
      {
        "hazard": "named_storm_landfall",
        "hit_rate": 0.455,
        "n": 292
      },
      {
        "hazard": "wind_above",
        "hit_rate": 0.667,
        "n": 60
      }
    ],
    "calibration_curve": [
      {
        "bucket": "0.0–0.1",
        "predicted": 0.05,
        "realized": 0.055
      },
      {
        "bucket": "0.2–0.3",
        "predicted": 0.25,
        "realized": 0.26
      },
      {
        "bucket": "0.5–0.6",
        "predicted": 0.55,
        "realized": 0.548
      },
      {
        "bucket": "0.8–0.9",
        "predicted": 0.85,
        "realized": 0.849
      },
      {
        "bucket": "0.9–1.0",
        "predicted": 0.9,
        "realized": 0.3
      }
    ],
    "hit_rate": 0.503,
    "model_label": "stub-model",
    "n_signals": 1228
  },
  "meta": {
    "data_mode": "live",
    "docs": "https://x402-factory.com/docs/edge.backtest",
    "endpoint": "/v1/edge/backtest",
    "freshness": "daily",
    "generated_at": "2026-09-29T05:40:58.570Z",
    "request_id": "req_00000000",
    "sources": [
      "stub-model",
      "kalshi",
      "polymarket"
    ],
    "version": "1.0.0"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-factory.com/v1/edge/backtest?window=90'

# 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://x402-factory.com/v1/edge/backtest?window=90' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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%2Fx402-factory.com%2Fv1%2Fedge%2Fbacktest
const res = await pay("https://x402-factory.com/v1/edge/backtest?window=90");
console.log(res.status, await res.text());
Python: pay and call
# 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://x402-factory.com/v1/edge/backtest?window=90")
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
30 min agoPassed402401 ms$0.05
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