65trust / 100

Polymarket Btc 15m

by api.liquidagent.ai in Markets & finance

x402 APIPassing, checked 59 min ago

Polymarket BTC 15m Up/Down in one call: the OFFICIAL price to beat (the 60 s Chainlink TWAP before the window, matched to the cent against Polymarket's results), the live Chainlink price and its distance from the price to beat, seconds left, token ids and the market's own prices. ?start=<unix> returns a past window's official settle and outcome. $0.002 USDC. Data, not financial advice.

GET
https://api.liquidagent.ai/v1/polymarket/btc-15m
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
393 ms
548 ms slowest 5%
Last check
Passed
59 min ago, next any minute now

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://api.liquidagent.ai/v1/polymarket/btc-15m

Each call costs $0.004 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

Built from the input schema. Replace the values with your own.

GET https://api.liquidagent.ai/v1/polymarket/btc-15m?start=example

Parameters

ParameterTypeRequiredDescription
startstringNoOptional. Unix start of a past 15m window (multiple of 900) to get its official settle and outcome. Omit for the live window.

Example response

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

{
  "chainlink": {
    "price": 83140.29
  },
  "distance": 55.93,
  "market": {
    "asset": "BTC",
    "secondsLeft": 120,
    "slug": "btc-updown-15m-1790652300",
    "timeframe": "15m"
  },
  "marketPrices": {
    "down": 0.075,
    "up": 0.925
  },
  "priceToBeat": 83084.36,
  "status": "live"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.liquidagent.ai/v1/polymarket/btc-15m?start=example'

# 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://api.liquidagent.ai/v1/polymarket/btc-15m?start=example' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.liquidagent.ai%2Fv1%2Fpolymarket%2Fbtc-15m
const res = await pay("https://api.liquidagent.ai/v1/polymarket/btc-15m?start=example");
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.liquidagent.ai/v1/polymarket/btc-15m?start=example")
    print(res.status_code, res.text)

Security scan

1 finding

  • Charges more than its listed price in payment
    Listed at $0.002, charges $0.004

Recent checks

WhenResultHTTPTimePrice
59 min agoPassed402540 ms$0.004
5 h agoPassed402401 ms$0.004
10 h agoPassed402380 ms$0.004
14 h agoPassed402420 ms$0.004
18 h agoPassed402435 ms$0.004
Show 10 older checks
22 h agoPassed402369 ms$0.004
27 h agoPassed402400 ms$0.004
31 h agoPassed402368 ms$0.004
34 h agoPassed402419 ms$0.004
38 h agoPassed402132 ms$0.004
42 h agoPassed402548 ms$0.004
46 h agoPassed402516 ms$0.004
2 days agoPassed402393 ms$0.004
2 days agoPassed402113 ms$0.004
2 days agoPassed402409 ms$0.004

History

11 Oct 2026Price changed from $0.002 to $0.004