Bulk QR Code Generator.

POST https://qr-code-generator.underscoredone.com/generate ↗

Send a list of texts — website addresses, phone numbers, plain words, WiFi details, anything — and get back a ready-to-use QR code image for each one. Every QR code comes as a base64-encoded PNG you can drop straight into a webpage or save to disk. Great for marketing campaigns, event tickets, product labels, menus, or any situation where you need many QR codes in one go. Empty entries are quietly skipped. Each input is limited to 700 characters. You must send at least one non-empty entry.

Eligibility: unprobeable
Failures: 0
Last quote: —
Last probe: —

Payment requirements / accepts[] 2 options

State	Network	Scheme	Atomic amount	Asset	payTo / untrusted
active	eip155:8453	exact	10000	0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913	0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08
active	solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp	exact	10000	EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v	8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 0 recent

No probe attempts recorded yet. Coverage runs prioritize never-probed endpoints.

Machine contract

Schemas.

InputJSON

{
  "body": {
    "error_correction": "H",
    "size": 600,
    "texts": [
      "https://example.com",
      "https://example.com/product/42",
      "WiFi:T:WPA;S:GuestNetwork;P:welcome123;;",
      "Phone: +1-800-555-0199"
    ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

OutputJSON

{
  "example": {
    "api_version": "1.0.0",
    "count": 2,
    "results": [
      {
        "qr_base64": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAJYCAYAAAC+ZpjcAA...",
        "text": "https://example.com"
      },
      {
        "qr_base64": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAJYCAYAAAC+ZpjcAA...",
        "text": "Phone: +1-800-555-0199"
      }
    ]
  },
  "type": "json"
}