# MoneyTools QR Code & EIP-681 Crypto Payment Link Generator

> 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

## Facts

- Endpoint: GET https://tools.moneytools.dev/v1/qr?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-05
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/moneytools-qr-code-eip-681-crypto-payment-link-generator-d6ac7cbd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0BkEQW0HcqGvpUmh6H3QO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability moneytools-qr-code-eip-681-crypto-payment-link-generator-d6ac7cbd
```

Example prompt: Generate a QR code payment link so someone can send me 5 USDC on Base to 0xAbC123...def — give me the SVG QR and the EIP-681 link.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "to": {
       "type": "string",
       "description": "recipient 0x address (payment-link mode)"
      },
      "text": {
       "type": "string",
       "examples": [
        "https://moneytools.dev"
       ],
       "description": "text or URL to encode"
      },
      "chain": {
       "type": "string",
       "examples": [
        "base"
       ],
       "description": "chain (default base)"
      },
      "token": {
       "type": "string",
       "examples": [
        "USDC"
       ],
       "description": "USDC (default), native symbol, USDT..."
      },
      "amount": {
       "type": "string",
       "examples": [
        "1.5"
       ],
       "description": "human amount"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "properties": {
      "payment": {
       "type": "object",
       "properties": {
        "charged": {
         "type": "boolean"
        },
        "network": {
         "type": "string"
        },
        "amountUsd": {
         "type": "string"
        },
        "transaction": {
         "type": [
          "string",
          "null"
         ]
        }
       }
      },
      "freeTier": {
       "type": "object"
      },
      "_moneytools": {
       "type": "object",
       "description": "optional plan / partner hints"
      }
     },
     "description": "Tool-specific JSON result (see llms.txt / openapi.json). Always includes payment info.",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/moneytools-qr-code-eip-681-crypto-payment-link-generator-d6ac7cbd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tools.moneytools.dev](https://www.zero.xyz/host/tools.moneytools.dev/llms.txt)