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Synapse Barcode Generator
x402
Synapse Barcode Generator is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Generates a barcode (e.g. EAN-13) as an SVG given a value, returning the rendered image and validation status
Price / call$0.002
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
Returns a JSON object containing: an SVG string of the rendered barcode image, the detected or specified barcode type (e.g. 'ean13'), a boolean 'valid' field indicating whether the input value passes checksum/format validation, and the encoded value string.
Example use cases
Product label barcode generation
“I need an EAN-13 barcode SVG for product number 4006381333931 to put on my product label — can you generate it and tell me if the number is valid?”
E-commerce listing barcode embed
“Generate a barcode SVG for GTIN 9780141036144 so I can embed it directly in my product detail page on the website.”
Retail packaging QC check
“Can you create a barcode for the value 5901234123457 and confirm whether it passes EAN-13 validation before I send it to the printer?”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/barcode?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call barcode generator with no account setup, returning ready-to-use SVG output. Ideal for one-off or low-volume barcode generation in automated pipelines, product catalog tooling, or packaging workflows where EAN-13 (and similar) SVG barcodes are needed instantly without managing API keys.
Side effects
- Invalid or malformed barcode value (wrong digit count, failed checksum) — returns valid: false or error response
- Missing required query parameter for the barcode value — likely 400 Bad Request
- Payment failure via x402 protocol — 402 Payment Required before barcode is returned
- Unsupported barcode type requested — may return an error or fall back to a default type
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"svg": "<svg ...>...</svg>",
"type": "ean13",
"valid": true,
"value": "4006381333931"
}
}Tags
x402
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