ToolVet
71trust / 100

Polymarket Markets

by botsmith in Markets & finance

x402 APIPassing, checked 5 min ago

Best Markets to Watch ($0.02/call): The best Polymarket prediction markets to watch right now, ranked by a composite watch-score (24h volume, liquidity, competitiveness, momentum, time-to-resolution). Filter by tag. Returns implied probability, volume, liquidity, spread and a plain-English reason for each. Live data, no account needed.

GET
https://x402.botsmith.dev/polymarket/markets
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
1.4 s
1.4 s slowest 5%
Last check
Passed
5 min ago, next in 28 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://x402.botsmith.dev/polymarket/markets

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.botsmith.dev/polymarket/markets?limit=5&sort=watch

Parameters

ParameterTypeRequiredDescription
limitintegerYesHow many markets to return Default: 10.
sortstringYesRanking: 'watch' = composite watch-score (default), or raw volume/liquidity One of: watch, volume, liquidity. Default: "watch".
tagstringNoFilter by a Polymarket tag slug, e.g. 'politics', 'crypto', 'sports'

Example response

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

{
  "count": 1,
  "markets": [
    {
      "daysToResolution": 12,
      "liquidity": 240000,
      "priceChange24h": 0.05,
      "question": "Will the Fed cut rates in March?",
      "slug": "will-the-fed-cut-rates-in-march",
      "spread": 0.01,
      "url": "https://polymarket.com/market/will-the-fed-cut-rates-in-march",
      "volume24hr": 1830000,
      "watchScore": 78.4,
      "why": "$1.8M traded in 24h, +5pt move today, tightly contested, resolves in 12d",
      "yesPrice": 0.42
    }
  ],
  "sort": "watch"
}

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.botsmith.dev/polymarket/markets?limit=5&sort=watch'

# 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.botsmith.dev/polymarket/markets?limit=5&sort=watch' \
  | 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.botsmith.dev%2Fpolymarket%2Fmarkets
const res = await pay("https://x402.botsmith.dev/polymarket/markets?limit=5&sort=watch");
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.botsmith.dev/polymarket/markets?limit=5&sort=watch")
    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
5 min agoPassed4021.3 s$0.02
5 h agoPassed4021.4 s$0.02
10 h agoPassed4021.4 s$0.02
15 h agoPassed4021.3 s$0.02
20 h agoPassed4021.3 s$0.02
Show 10 older checks
24 h agoPassed4021.3 s$0.02
29 h agoPassed4021.4 s$0.02
34 h agoPassed4021.4 s$0.02
38 h agoPassed4021.3 s$0.02
42 h agoPassed4021.3 s$0.02
46 h agoPassed4021.4 s$0.02
2 days agoPassed4021.4 s$0.02
2 days agoPassed4021.4 s$0.02
2 days agoPassed4021.3 s$0.02
3 days agoPassed4021.4 s$0.02