Lottery Odds

{
  "asOf": "2026-10-11T14:44:18.417Z",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "game": "5 of 69 + 1 of 26",
  "jackpotOneIn": "292201338",
  "jackpotProbability": 3.4222978130237033e-9,
  "notChecked": [
    "the actual prize for each tier (prize amounts and rules vary by game and draw)",
    "jackpot sharing between several winners, taxes and annuity versus cash value",
    "…2 more"
  ],
  "reasons": [
    "Tier odds use hypergeometric counting: C(k,m) x C(N-k, k-m) / C(N,k) for the main numbers, times the same for the bonus pool.",
    "Every combination is equally likely; the odds do not change from draw to draw.",
    "…1 more"
  ],
  "source": "computed locally (hypergeometric counting)",
  "summary": "5 of 69 + 1 of 26: jackpot odds 1 in 292,201,338.",
  "tiers": [
    {
      "bonusMatches": 1,
      "mainMatches": 5,
      "oneIn": 292201338,
      "probability": 3.4222978130237033e-9,
      "ways": "1"
    },
    {
      "bonusMatches": 0,
      "mainMatches": 5,
      "oneIn": 11688054,
      "probability": 8.555744532559259e-8,
      "ways": "25"
    }
  ],
  "tiersCount": 12,
  "totalCombinations": "292201338",
  "verdict": "COMPUTED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://probability-calc.x402tookit.com/lottery-odds?bonusPool=26&pick=5&poolSize=69'

# 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://probability-calc.x402tookit.com/lottery-odds?bonusPool=26&pick=5&poolSize=69' \
  | 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 $0.02 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%2Fprobability-calc.x402tookit.com%2Flottery-odds
const res = await pay("https://probability-calc.x402tookit.com/lottery-odds?bonusPool=26&pick=5&poolSize=69");
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 $0.02 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://probability-calc.x402tookit.com/lottery-odds?bonusPool=26&pick=5&poolSize=69")
    print(res.status_code, res.text)