78trust / 100

Mlb

by x402.momusai.io in Markets & finance

x402 APIPassing, checked 6 min ago

Momus MLB model: win probabilities for one game from a pitcher-aware Elo (starter FIP/ERA, bullpen, home field) fitted on 7,000+ games, the de-vigged market, the 60/40 blend Momus bets on, fair odds, probable starters. Deterministic, no LLM. Either team name is enough for that team's next game.

GET
https://x402.momusai.io/mlb
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
64 ms
345 ms slowest 5%
Last check
Passed
6 min ago, next in 25 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://x402.momusai.io/mlb

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.momusai.io/mlb?awayTeam=Washington+Nationals&homeTeam=San+Diego+Padres

Parameters

ParameterTypeRequiredDescription
awayTeamstringNo
homeTeamstringNo

Example response

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

Example response, 33 lines
{
  "blended": {
    "awayWinPct": 31.3,
    "homeWinPct": 68.7
  },
  "fairOdds": {
    "away": 4.2,
    "home": 1.31
  },
  "game": {
    "away": "Washington Nationals",
    "firstPitch": "2026-09-07T21:11:00.000Z",
    "home": "San Diego Padres"
  },
  "market": {
    "awayWinPct": 35.9,
    "homeWinPct": 64.1
  },
  "model": {
    "awayWinPct": 23.8,
    "homeWinPct": 76.2
  },
  "starters": {
    "away": {
      "era": 5.57,
      "name": "Jake Irvin"
    },
    "home": {
      "era": 4.5,
      "name": "Nick Pivetta"
    }
  }
}

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.momusai.io/mlb?awayTeam=Washington+Nationals&homeTeam=San+Diego+Padres'

# 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.momusai.io/mlb?awayTeam=Washington+Nationals&homeTeam=San+Diego+Padres' \
  | 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.momusai.io%2Fmlb
const res = await pay("https://x402.momusai.io/mlb?awayTeam=Washington+Nationals&homeTeam=San+Diego+Padres");
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.momusai.io/mlb?awayTeam=Washington+Nationals&homeTeam=San+Diego+Padres")
    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
6 min agoPassed40261 ms$0.05
4 h agoPassed40258 ms$0.05
9 h agoPassed40250 ms$0.05
13 h agoPassed40267 ms$0.05
17 h agoPassed40264 ms$0.05
Show 10 older checks
21 h agoPassed40264 ms$0.05
26 h agoPassed402190 ms$0.05
30 h agoPassed40285 ms$0.05
34 h agoPassed40251 ms$0.05
38 h agoPassed40251 ms$0.05
42 h agoPassed402137 ms$0.05
45 h agoPassed40256 ms$0.05
2 days agoPassed40271 ms$0.05
2 days agoPassed40282 ms$0.05
2 days agoPassed402345 ms$0.05