Netzhandwerker File Inspector

x402

Netzhandwerker File Inspector is a paid API for AI agents from tools.netzhandwerker.de, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Inspects a file (as base64 or text) to detect MIME type, extension, embedded objects, and suspicious findings like JavaScript in PDFs — structure and signature analysis only, no antivirus.

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

x402-Werkzeuge für autonome Agenten.

Output

Returns a JSON object with: a note clarifying it is structure/signature analysis only (no antivirus), total byte size, a verdict string (e.g. 'nur_in_sandkasten'), detected MIME type and extension, a list of embedded object kinds with counts, a list of security findings each with an ID, human-readable evidence, and severity level, the magic bytes hex, the claimed extension, and whether the extension matches the detected type.

Example use cases

PDF JavaScript detection in uploads

“A user just uploaded a file called 'invoice.pdf' — can you inspect its base64 content and tell me if it has any embedded JavaScript or risky findings before I let it into the system?”

MIME type mismatch check

“I received a file that claims to be a .docx but I'm not sure it really is — can you check the base64 content with filename 'document.docx' and see if the extension actually matches the detected file type?”

Embedded object audit in documents

“Inspect this base64-encoded file named 'presentation.pdf' and list all embedded objects like scripts, pages, or other PDF objects so I know what's inside before opening it.”

Technical details

Endpoint

POSThttps://tools.netzhandwerker.de/v1/file/inspect

When to prefer

Use this endpoint when you need lightweight, fast file-type and structure inspection — especially to detect MIME/extension mismatches or embedded risky objects like JavaScript in PDFs — without needing a full antivirus scan. Ideal for pre-processing untrusted user uploads in an agent pipeline before further handling. Best for files up to ~9 MB supplied as base64.

Side effects

Base64 payload exceeds ~9 MB limit — request rejected
Malformed base64 string causes parsing failure
No input provided (neither text nor base64) — validation error
Unsupported or unrecognizable file format — limited detection results
Payment of 0.002 USDC not completed — 402 Payment Required response

Input

Schema · Request body

Field	Type	Description
text	string	Alternativ: Textinhalt
base64	string	Dateiinhalt als Base64, bis etwa 9 MB
filename	string	Behaupteter Dateiname fuer den Abgleich der Endung

Output

Schema · Response

{
  "type": "json",
  "example": {
    "note": "Reine Struktur- und Signaturpruefung. Kein Virenscanner.",
    "bytes": 184213,
    "verdict": "nur_in_sandkasten",
    "detected": {
      "mime": "application/pdf",
      "extension": "pdf"
    },
    "embedded": [
      {
        "kind": "pdf_objects",
        "count": 412
      },
      {
        "kind": "pdf_pages",
        "count": 3
      }
    ],
    "findings": [
      {
        "id": "pdf_javascript",
        "evidence": "PDF enthaelt JavaScript-Eintrag.",
        "severity": "hoch"
      }
    ],
    "magic_hex": "255044462d312e340a25c7ec8fa2",
    "claimed_extension": "pdf",
    "extension_matches": true
  }
}

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How this service works

x402-Werkzeuge für autonome Agenten.

Output

Example use cases

PDF JavaScript detection in uploads

“A user just uploaded a file called 'invoice.pdf' — can you inspect its base64 content and tell me if it has any embedded JavaScript or risky findings before I let it into the system?”

MIME type mismatch check

Embedded object audit in documents

“Inspect this base64-encoded file named 'presentation.pdf' and list all embedded objects like scripts, pages, or other PDF objects so I know what's inside before opening it.”

Technical details

Endpoint

POSThttps://tools.netzhandwerker.de/v1/file/inspect

When to prefer

Side effects

Base64 payload exceeds ~9 MB limit — request rejected
Malformed base64 string causes parsing failure
No input provided (neither text nor base64) — validation error
Unsupported or unrecognizable file format — limited detection results
Payment of 0.002 USDC not completed — 402 Payment Required response

Input

Schema · Request body

Field	Type	Description
text	string	Alternativ: Textinhalt
base64	string	Dateiinhalt als Base64, bis etwa 9 MB
filename	string	Behaupteter Dateiname fuer den Abgleich der Endung

Output

Schema · Response

{
  "type": "json",
  "example": {
    "note": "Reine Struktur- und Signaturpruefung. Kein Virenscanner.",
    "bytes": 184213,
    "verdict": "nur_in_sandkasten",
    "detected": {
      "mime": "application/pdf",
      "extension": "pdf"
    },
    "embedded": [
      {
        "kind": "pdf_objects",
        "count": 412
      },
      {
        "kind": "pdf_pages",
        "count": 3
      }
    ],
    "findings": [
      {
        "id": "pdf_javascript",
        "evidence": "PDF enthaelt JavaScript-Eintrag.",
        "severity": "hoch"
      }
    ],
    "magic_hex": "255044462d312e340a25c7ec8fa2",
    "claimed_extension": "pdf",
    "extension_matches": true
  }
}