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Image Format Detector via Magic Bytes
x402
Image Format Detector via Magic Bytes is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Detects true image format from a URL using magic bytes analysis, returning format, content-type accuracy, file size, and dimensions — regardless of file extension or declared content-type.
Price / call$0.005
Success—
StatusUnknown
How this service works
Detect image format from a URL using magic bytes (works even when extension or content-type lies). Returns format, content-type match flag, file size, dimensions. Use url param Built for AI agents validating untrusted image inputs. Accepts payment on Base or Solana — either network works.
Output
Returns the true detected image format (e.g. PNG, JPEG, WEBP), a flag indicating whether the declared content-type matches the actual format, the file size in bytes, and the image dimensions (width x height). Derived from magic bytes, not extension or headers.
Example use cases
Example prompt
“Can you check what the real image format is for this URL — https://cdn.example.com/upload/photo.jpg — I don't trust that the extension or content-type is accurate and I need to know the actual format, whether it matches, the dimensions, and the file size.”
Technical details
Endpoint
GEThttps://api.x402node.dev/image/detectWhen to prefer
Use this endpoint when you need to validate untrusted image inputs where the file extension or Content-Type header may be spoofed or incorrect — e.g. user-uploaded images, scraped media, or third-party CDN assets. Prefer this over client-side MIME sniffing or extension-based checks when accuracy and security matter.
Side effects
- URL is unreachable or returns non-image content — returns error or null format
- Image file is too large or download times out — returns timeout or size error
- URL serves a format with ambiguous or unknown magic bytes — format may be returned as unknown
- Malformed or missing URL parameter — returns 400-level validation error
- Image host blocks the request or returns 403/404 — returns fetch error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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