ToolVet
69trust / 100

Qr Generator

by AgentUtility.ai in Developer tools

x402 APIPassing, checked 2 h ago

Generates PNG or SVG QR codes from text, URLs, vCards, WiFi strings, and plain text with configurable size, margin, colors, and error correction. Use it as a QR generator API, create-QR-code endpoint, text-to-QR, or link QR generator.

POST
https://x402.agentutility.ai/qr-generator
Price
$0.001
per call in USDC
Uptime
91.7%
last 30 days
Response time
2.3 s
4.5 s slowest 5%
Last check
Passed
2 h 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

POST https://x402.agentutility.ai/qr-generator

Each call costs $0.001 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://x402.agentutility.ai/qr-generator
content-type: application/json

{
  "format": "png",
  "size": 256,
  "text": "https://x402.agentutility.ai"
}

Parameters

ParameterTypeRequiredDescription
backgroundstringNoBackground color as 6 or 8-digit hex.
error_correctionstringNoReed-Solomon error-correction level. One of: L, M, Q, H.
foregroundstringNoQR module color as 6 or 8-digit hex.
formatstringNoOutput image format. Default 'png'. One of: png, svg.
marginnumberNoQuiet-zone margin in modules. Range [0, 20]. Default 4.
sizenumberNoImage side length in pixels. Range [64, 1024]. Default 256.
textstringYesText to encode. Any string up to ~4296 chars.

Example response

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

{
  "content_type": "image/png",
  "format": "png",
  "size": 256
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://x402.agentutility.ai/qr-generator' \
  -H 'content-type: application/json' \
  --data-raw '{"format":"png","size":256,"text":"https://x402.agentutility.ai"}'

# 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://x402.agentutility.ai/qr-generator' \
  -H 'content-type: application/json' \
  --data-raw '{"format":"png","size":256,"text":"https://x402.agentutility.ai"}' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.agentutility.ai%2Fqr-generator&method=POST
const res = await pay("https://x402.agentutility.ai/qr-generator", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "format": "png",
    "size": 256,
    "text": "https://x402.agentutility.ai"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://x402.agentutility.ai/qr-generator",
        json={
            "format": "png",
            "size": 256,
            "text": "https://x402.agentutility.ai",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402120 ms$0.001
6 h agoPassed4022.4 s$0.001
10 h agoPassed4024.4 s$0.001
15 h agoPassed40241 ms$0.001
19 h agoPassed4022.5 s$0.001
Show 10 older checks
22 h agoPassed4023.6 s$0.001
26 h agoPassed402190 ms$0.001
30 h agoPassed4022.3 s$0.001
34 h agoPassed4025.9 s$0.001
38 h agoPassed402296 ms$0.001
42 h agoPassed4024.5 s$0.001
45 h agoPassed4024.7 s$0.001
2 days agoPassed402121 ms$0.001
2 days agoPassed402257 ms$0.001
2 days agoPassed402108 ms$0.001