402utils C2PA Content Credentials Verifier

x402

402utils C2PA Content Credentials Verifier is a paid API for AI agents from 402utils.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Verifies C2PA/Content Credentials provenance and tamper detection in an image, returning trust status, signature validity, trust-chain issuer, and asset-hash checks.

Price / call$0.005

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StatusUnknown

How this service works

Verify C2PA / Content Credentials (provenance & tamper detection) in an image: send the image bytes or a JSON {url}. Returns Trusted/Valid/Invalid/None with per-manifest signature, trust-chain (issuer) and asset-hash checks plus C2PA actions. 'Trusted' only if the signer chains to the C2PA trust list, otherwise 'Valid'. Relevant to EU AI Act Art. 50. Verification only (embedded manifests) — not generation.

Output

Returns a trust status of Trusted (signer chains to C2PA trust list), Valid (valid signature but not on trust list), Invalid (tampered or bad signature), or None (no embedded manifest). Also includes per-manifest signature details, trust chain issuer identity, asset hash verification result, and declared C2PA actions recorded in the manifest.

Example use cases

Example prompt

“Check the C2PA content credentials on this image — https://example.com/photo.jpg — tell me whether it's Trusted, Valid, Invalid, or has None, who signed it, and whether the asset hash checks out.”

Technical details

Endpoint

POSThttps://402utils.com/v1/c2pa-verify?utm_source=zero.xyz

When to prefer

Use this endpoint when you need to verify C2PA/Content Credentials embedded in an image to check provenance, detect tampering, or confirm trust-chain validity — especially for EU AI Act Art. 50 compliance, media authenticity workflows, or vetting AI-generated or manipulated images. It handles both URL-based and byte-based image input and can optionally produce a signed Ed25519 attestation for an audit trail.

Side effects

Image URL is not publicly accessible — returns error or None status
Image has no embedded C2PA manifest — returns status None
Signature is cryptographically invalid — returns Invalid status
Unsupported image format — may return error
Network timeout fetching the image URL
Malformed request body — returns 400-level error

Input

Schema · Request body

Field	Type	Description
url	string	Public http(s) URL of an image (alternative to sending bytes).
attest	string	Set to 1 for an Ed25519-signed attestation of the result (audit trail).

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