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MoneyTools QR Code & EIP-681 Crypto Payment Link Generator
x402
MoneyTools QR Code & EIP-681 Crypto Payment Link Generator is a paid API for AI agents from tools.moneytools.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-05).
Generates an SVG QR code for any text/URL, or creates an EIP-681 crypto payment link with QR code for requesting a token payment to a specific address
Price / call$0.001
Success—
StatusUnknown
How this service works
QR code + crypto payment link: SVG QR code for any text/URL, or build an EIP-681 payment link + QR for a token amount to an address (for an agent asking a human to pay). We never receive the funds. Free tier 10/day; then $0.001 via x402 (HTTP 402 + PAYMENT-REQUIRED) or X-API-Key credits. Not charged on failure. $0.001/call via x402 (USDC on Base); free tier 10 calls per tool per day. Read-only; run by MoneyTools.
Output
Returns a JSON object containing an SVG QR code image, and in payment-link mode also an EIP-681-formatted URL encoding the recipient address, token, chain, and amount. Always includes payment metadata (charged boolean, network, amountUsd, transaction hash if applicable) and free-tier usage information. No funds are ever held or received by MoneyTools.
Example use cases
Request crypto payment from customer
“Create a payment QR code for 25 USDC on Base to my wallet address 0x1234567890abcdef1234567890abcdef12345678 — I need something a customer can scan to pay me.”
QR code for a landing page URL
“Can you make a QR code for my website https://moneytools.dev so I can put it on my business card?”
Invoice with USDT payment link
“Generate an EIP-681 payment request QR for 100 USDT to 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12 on Base so I can embed it in an invoice PDF.”
Technical details
Endpoint
GEThttps://tools.moneytools.dev/v1/qr?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to generate a QR code for any text or URL, or specifically when you need to create an EIP-681-compliant crypto payment request (with QR) that lets a human scan and pay a specific wallet address a specific token amount on a specific chain. It is read-only and never holds funds, making it safe for agent use. Prefer it over generic QR libraries when you need native crypto payment link support with Base/USDC defaults and x402 micropayment billing.
Side effects
- Invalid or malformed 0x address returns an error response
- Unsupported token symbol or chain name returns an error
- Missing required 'text' parameter (for QR-only mode) returns a 400-style error
- Free tier exceeded (10/day) without payment credentials returns HTTP 402 with PAYMENT-REQUIRED header
- Invalid amount format (non-numeric string) causes error
- x402 payment failure results in no charge and no result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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