Mekler AI QR Code Generator

x402

Mekler AI QR Code Generator is a paid API for AI agents from api.mekler.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).

Generates a standards-based QR code from UTF-8 text or a payment URI, returning SVG or base64-encoded PNG with metadata including dimensions, SHA-256 hash, QR version, and error-correction level.

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

Generate a standards-based QR code from supplied UTF-8 text or a payment URI. Return SVG or PNG as base64 with dimensions, SHA-256, QR version and error-correction level. Maximum 1024 UTF-8 bytes, scale 1–8 and fixed four-module quiet zone. Encodes the supplied payload; does not validate a payment destination, execute payment or host an image.

Output

A JSON object containing the encoded image (SVG markup or base64 PNG), image dimensions (width/height in pixels), MIME type, SHA-256 hash of the image bytes, QR version number, error-correction level used, byte length, payload byte count, quiet zone module count, encoding type, and a status field.

Example use cases

QR code for a payment link

“Create a QR code for the Lightning payment URI 'lightning:lnbc500n1...' as an SVG at scale 4 with M error-correction so I can embed it on an invoice page.”

Printed event ticket QR

“Generate a PNG QR code at scale 8 with H error-correction for the text 'EVENT:CONF2025:SEAT-A42' — I need it big and resilient enough to survive printing and scanning.”

Shareable URL QR for marketing

“Make an SVG QR code for 'https://mykickstarter.com/campaign/launch' at the default scale and Q error-correction so I can drop it into a flyer design.”

Technical details

Endpoint

POSThttps://api.mekler.ai/v1/images/qr/generate-code?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a deterministic, standards-compliant QR code rendered server-side and returned as a self-contained image (SVG or PNG) with integrity metadata (SHA-256). Ideal when you need to embed QR codes in agent-generated documents, invoices, or UIs without relying on a client-side library. Prefer it over client-side generators when reproducibility, hash verification, or payment URI encoding accuracy matters.

Side effects

Payload exceeds 1024 UTF-8 bytes — rejected with validation error
Scale value outside 1–8 range — returns schema validation error
Empty or missing text field — returns bad request error
Invalid error_correction value not in [L,M,Q,H] — returns validation error
Invalid format value not in [svg,png] — returns validation error
request_id not matching required pattern — returns validation error

Input

Schema · Request body

Field	Type	Description
text	string
scale	integer
format	string
request_id	string
error_correction	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": "iVBORw0KGgoAAAANSUhEUgAAAIQAAACEAQAAAAB5P74KAAAAw0lEQVR42u1W0QkCUQwLLpD9t8wGtclDQUEQ4+cVOWo/QpumucO8hXBVXisAOCBOohve45vK4jC/zZIUOCAJDZ20OEPNH3CWGNb9jEd6EPU7jteUKPfl4FMSDT/Wj6wfVjikBD/Y8aPoWVl/gaPVII6oS348muGgSj8LpD2M0Nz1s5O5GXZ61rENk9zdlz2D+VPrOb2wvq8Vj3Lw7b3bxgblvo5tnCFbH4t7qPbDpbnWjyU0ee1oWj90VzO1H15fBR8qd5tY9Osict9SAAAAAElFTkSuQmCC",
    "width": 132,
    "format": "png",
    "height": 132,
    "sha256": "c25a99d2a24dbe4f167e747c2af350ec7360c9630002aff31a5979b6cc665780",
    "status": "ok",
    "version": 2,
    "encoding": "base64",
    "mime_type": "image/png",
    "byte_length": 252,
    "payload_bytes": 18,
    "error_correction": "M",
    "quiet_zone_modules": 4
  }
}

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