# GeekVault QR Code Decoder

> GeekVault QR Code Decoder is a paid API for AI agents from api.geekvault.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Decodes QR codes from an uploaded image file, returning all detected codes and their count

## Facts

- Endpoint: POST https://api.geekvault.dev/img-tools/v1/qr-decode?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/geekvault-qr-code-decoder-e10e6349
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OcZIZ7hiMdu9MFdTdIsqY

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 geekvault-qr-code-decoder-e10e6349 -d '<json body>'
```

Example prompt: I have this image with a QR code on it — can you decode it and tell me what the QR code contains?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call QR code decoder with no signup or API key requirements. Ideal for agents that occasionally need to decode QR codes without committing to a subscription. Particularly useful in pipelines that process scanned documents, product photos, or user-submitted images containing QR codes.

## Known failure modes

- Image contains no detectable QR code — returns found:0 and empty codes array
- Image file is corrupt, too low resolution, or in unsupported format — likely a 400 error
- QR code is partially obscured or damaged, preventing reliable decode — may return partial results or 0 found
- File payload too large — may result in a 413 or timeout error
- Payment not processed correctly via x402 — returns 402 Payment Required

## How this service works

Network, docs, image, web, and dev utility tools paid per call via x402. No signup, no API keys, no subscriptions — just USDC on Base.

## Output

Returns a JSON object with 'found' (integer count of QR codes detected) and 'codes' (array of strings, each being the decoded text or URL from a detected QR code). If no QR codes are detected, found will be 0 and codes will be an empty array.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "file"
 ],
 "properties": {
  "file": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "found",
  "codes"
 ],
 "properties": {
  "codes": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "found": {
   "type": "integer",
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/geekvault-qr-code-decoder-e10e6349/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.geekvault.dev](https://www.zero.xyz/host/api.geekvault.dev/llms.txt)