78trust / 100

Evergreen World Series Winner

by x402-factory in Markets & finance

x402 APIPassing, checked 28 min ago

Live probability: Who wins the next World Series? — Stable evergreen URL for a recurring question: Who wins the next World Series? Auto-resolves to the current market instance and rolls forward on resolution, so the answer is always about the next occurrence. Response adds current_slug and rolls_to_next_at to the standard probability shape.

GET
https://x402-factory.com/v1/evergreen/world-series-winner
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
127 ms
428 ms slowest 5%
Last check
Passed
28 min ago, next in 2 min

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

GET https://x402-factory.com/v1/evergreen/world-series-winner

Each call costs $0.02 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/evergreen/world-series-winner

Example response

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

Example response, 45 lines
{
  "data": {
    "category": "sports",
    "current_slug": "dodgers-win-world-series-2026",
    "divergence": 0.0308,
    "last_move_1h": 0.0029,
    "per_venue": [
      {
        "implied_p": 0.2228,
        "liquidity_score": 0.947,
        "market_id": "KXDODGERSWINWORL",
        "venue": "kalshi",
        "volume_24h_usd": 276650.13
      },
      {
        "implied_p": 0.2536,
        "liquidity_score": 0.926,
        "market_id": "dodgers-win-world-series-2026",
        "venue": "polymarket",
        "volume_24h_usd": 93103.56
      }
    ],
    "probability": 0.2359,
    "question": "Will the Dodgers win the 2026 World Series?",
    "resolution_criteria_summary": "Resolves YES if Los Angeles wins the 2026 World Series.",
    "resolution_date": "2026-11-01",
    "rolls_to_next_at": "2026-11-01",
    "slug": "dodgers-win-world-series-2026",
    "topic": "world-series-winner",
    "topic_question": "Who wins the next World Series?"
  },
  "meta": {
    "data_mode": "live",
    "docs": "https://x402-factory.com/docs/probability.evergreen.world-series-winner",
    "endpoint": "/v1/evergreen/world-series-winner",
    "freshness": "realtime",
    "generated_at": "2026-09-29T05:40:59.298Z",
    "request_id": "req_00000000",
    "sources": [
      "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 $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-factory.com/v1/evergreen/world-series-winner'

# 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/evergreen/world-series-winner' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-factory.com%2Fv1%2Fevergreen%2Fworld-series-winner
const res = await pay("https://x402-factory.com/v1/evergreen/world-series-winner");
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
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/evergreen/world-series-winner")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
28 min agoPassed402131 ms$0.02
5 h agoPassed402124 ms$0.02
9 h agoPassed402376 ms$0.02
13 h agoPassed402396 ms$0.02
17 h agoPassed402369 ms$0.02
Show 10 older checks
21 h agoPassed402428 ms$0.02
25 h agoPassed402126 ms$0.02
28 h agoPassed402126 ms$0.02
32 h agoPassed402128 ms$0.02
36 h agoPassed402380 ms$0.02
40 h agoPassed402643 ms$0.02
43 h agoPassed402126 ms$0.02
47 h agoPassed402121 ms$0.02
2 days agoPassed402127 ms$0.02
2 days agoPassed402468 ms$0.02