ToolVet
77trust / 100

Stablecoin Premium

by api.printmoneylab.com in Other

x402 APIPassing, checked 17 min ago

USDT/USDC premium on Korean exchanges vs official USD/KRW rate — fund flow indicator

GET
https://api.printmoneylab.com/api/v1/stablecoin-premium
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
608 ms
691 ms slowest 5%
Last check
Passed
17 min ago, next in 12 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://api.printmoneylab.com/api/v1/stablecoin-premium

Each call costs $0.002 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.printmoneylab.com/api/v1/stablecoin-premium

Example response

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

{
  "fx_source": "exchangerate-api.com",
  "interpretation": {
    "negative_premium": "Capital flowing OUT of Korean crypto market",
    "positive_premium": "Capital flowing INTO Korean crypto market"
  },
  "official_fx_rate": 1475.27,
  "stablecoins": {
    "usdc": {
      "premium_direction": "positive",
      "premium_percent": 0.12,
      "price_krw": 1477,
      "volume_24h": 30000000
    },
    "usdt": {
      "premium_direction": "positive",
      "premium_percent": 0.19,
      "price_krw": 1478,
      "volume_24h": 50000000
    }
  },
  "timestamp": 1776340000000
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.printmoneylab.com/api/v1/stablecoin-premium'

# 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.printmoneylab.com/api/v1/stablecoin-premium' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.printmoneylab.com%2Fapi%2Fv1%2Fstablecoin-premium
const res = await pay("https://api.printmoneylab.com/api/v1/stablecoin-premium");
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
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.printmoneylab.com/api/v1/stablecoin-premium")
    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
17 min agoPassed402612 ms$0.002
5 h agoPassed402647 ms$0.002
11 h agoPassed402657 ms$0.002
16 h agoPassed402590 ms$0.002
21 h agoPassed402627 ms$0.002
Show 10 older checks
26 h agoPassed402628 ms$0.002
31 h agoPassed402608 ms$0.002
37 h agoPassed402590 ms$0.002
41 h agoPassed402628 ms$0.002
46 h agoPassed402611 ms$0.002
2 days agoPassed402662 ms$0.002
2 days agoPassed402659 ms$0.002
3 days agoPassed402602 ms$0.002
3 days agoPassed402575 ms$0.002
3 days agoPassed402626 ms$0.002