Polymarket Odds
by Polymarket Odds & Probability in Markets & finance
๐ Queries Polymarket's Gamma CLOB for active prediction markets. Resolves event outcome probabilities (Yes/No %), 24h volume, liquidity, and resolution date in one call. Designed for AI agents that need a real-world reality check before trading, hedging, or rebalancing treasury. Pass query= (e.g. 'fed', 'btc', 'kraken-ipo-in-2025'). A probabilistic signal, not financial advice.
https://402.com.tr/api/x402/polymarket-odds- Price
- $0.02
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 523 ms
- 692 ms slowest 5%
- Last check
- Passed
- 4 h ago, next any minute now
Reliability
Status and outage history ยท Atom feed ยท Watch with other listings
How to call it
GET https://402.com.tr/api/x402/polymarket-odds
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://402.com.tr/api/x402/polymarket-odds?query=fedParameters
| Parameter | Type | Required | Description |
|---|---|---|---|
query | string | Yes | Market topic, question or slug |
Example response
The provider's example. We can't check it without paying.
{
"checkedAt": "2026-10-13T03:01:09.113Z",
"consensusProbability": "0.0%",
"endDate": "2025-12-31T12:00:00Z",
"found": true,
"outcomesCount": 2,
"query": "fed",
"slug": "kraken-ipo-in-2025",
"verdict": "unlikely"
}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://402.com.tr/api/x402/polymarket-odds?query=fed'
# 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://402.com.tr/api/x402/polymarket-odds?query=fed' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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%2F402.com.tr%2Fapi%2Fx402%2Fpolymarket-odds
const res = await pay("https://402.com.tr/api/x402/polymarket-odds?query=fed");
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://402.com.tr/api/x402/polymarket-odds?query=fed")
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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 4 h ago | Passed | 402 | 579 ms | $0.02 |
| 9 h ago | Passed | 402 | 780 ms | $0.02 |
| 13 h ago | Passed | 402 | 515 ms | $0.02 |
| 18 h ago | Passed | 402 | 616 ms | $0.02 |
| 22 h ago | Passed | 402 | 478 ms | $0.02 |
Show 10 older checks
| 27 h ago | Passed | 402 | 555 ms | $0.02 |
| 31 h ago | Passed | 402 | 506 ms | $0.02 |
| 35 h ago | Passed | 402 | 432 ms | $0.02 |
| 39 h ago | Passed | 402 | 523 ms | $0.02 |
| 43 h ago | Passed | 402 | 526 ms | $0.02 |
| 2 days ago | Passed | 402 | 692 ms | $0.02 |
| 2 days ago | Passed | 402 | 373 ms | $0.02 |
| 2 days ago | Passed | 402 | 515 ms | $0.02 |
| 3 days ago | Passed | 402 | 557 ms | $0.02 |
| 3 days ago | Passed | 402 | 574 ms | $0.02 |