ToolVet
77trust / 100

Qr

by Toolrail in Markets & finance

x402 APIPassing, checked 24 min ago

Generate a QR code as PNG or SVG from any text or URL (up to 2000 chars, 64-2048 px). Pairs with the PDF endpoint for payment links and labels. Use when you need a scannable QR image for a URL, payment link or label.

POST https://toolrail.dev/qr

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
383 ms typical, 638 ms slowest 5%
Last check
24 min ago
Next check
in 8 min

How to call it

POST https://toolrail.dev/qr

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

From the listing.

POST https://toolrail.dev/qr
content-type: application/json

{
  "data": "https://toolrail.dev",
  "format": "png",
  "size": 512
}

Parameters

ParameterTypeRequiredDescription
datastringNo
formatstringNo
sizeintegerNo

Example response

The listing has no example response.

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 -X POST 'https://toolrail.dev/qr' \
  -H 'content-type: application/json' \
  --data-raw '{"data":"https://toolrail.dev","format":"png","size":512}'

# 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 - -X POST 'https://toolrail.dev/qr' \
  -H 'content-type: application/json' \
  --data-raw '{"data":"https://toolrail.dev","format":"png","size":512}' \
  | 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%2Ftoolrail.dev%2Fqr&method=POST
const res = await pay("https://toolrail.dev/qr", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "data": "https://toolrail.dev",
    "format": "png",
    "size": 512
  }),
});
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.post(
        "https://toolrail.dev/qr",
        json={
            "data": "https://toolrail.dev",
            "format": "png",
            "size": 512,
        },
    )
    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
24 min agoPassed402205 ms$0.002
4 h agoPassed402573 ms$0.002
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