Tool detail
Bulk QR Code Generator
Converts a list of text strings into QR-code PNG images, returned as base64 data URIs, one per input.
Categories: Utilities
Use when
- generate QR codes for a batch of URLs or phone numbers
- create scannable QR images for event tickets or product labels
Not for
- not a single-string convenience shape, send an array even for one code
- not vector or SVG output, PNG only
Inputs
POST JSON body: { texts: array of strings, each <=700 chars } (required); optional size (integer 100-1200, default 600), error_correction (L/M/Q/H, default H).
Inputs undocumented: array without items
Endpoint
- Method
POST- URL
https://qr-code-generator.underscoredone.com/generate
Payment
- Protocol
- x402
- Listed price
- 0.01 USDC per call on Base
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- POST https://qr-code-generator.underscoredone.com/generate
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z