Synthex Forge C2PA Manifest Verifier

x402

Synthex Forge C2PA Manifest Verifier is a paid API for AI agents from x402.synthexforge.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-23).

Verifies a C2PA (Content Authenticity Initiative) manifest against a content hash and expected creator/generator metadata, returning a signed attestation of authenticity

Price / call$0.25

Seller volume →—

Success—

StatusUnknown

How this service works

Synthex Forge x402 Receive: 41 paid verification, attestation and governance endpoints (Ed25519 + SHA-256 signed artifacts) plus free verify/public-key/standard sibling routes. Paid routes answer HTTP 402 with an x402 v2 `payment-required` envelope (atomic USDC on Base mainnet, chain ID 8453). Free routes are declared with `security: []` per the x402scan discovery spec.

Output

A JSON object with an 'ok' boolean indicating whether the C2PA manifest is valid and matches the provided content hash and expected creator/generator metadata. The response is signed using Ed25519 and SHA-256 as a cryptographic attestation artifact.

Example use cases

AI-generated image provenance check

“I have a C2PA manifest from an AI-generated image and its SHA-256 hash. Can you verify that the manifest is valid and that it was actually generated by 'Stable Diffusion XL' as claimed, not by some other tool?”

News media authenticity verification

“We received a photo from a photojournalist claiming it was shot with a Canon EOS R5 and hasn't been altered. Here's the C2PA manifest and the image content hash — verify the manifest is authentic and the expected creator matches 'Reuters Photographer John Smith'.”

Brand content governance audit

“Can you check this C2PA manifest against content hash sha256:feed9876 and confirm the generator is our approved tool 'BrandStudio v3.1' and the creator is 'marketing@acme.com'? We need to make sure only approved tools are producing our branded content.”

Technical details

Endpoint

POSThttps://x402.synthexforge.com/v1/data/c2pa/verify?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need cryptographically signed, paid attestation of C2PA manifest authenticity — particularly when the verification result needs to serve as a governance artifact or audit trail. Prefer this over free or unsigned verifiers when downstream compliance, legal, or publishing workflows require a tamper-evident Ed25519-signed attestation record. Best suited for media provenance pipelines, content governance systems, and AI-generated content audit trails.

Side effects

Manifest does not match content hash — returns ok: false
Expected creator or generator mismatch — returns ok: false
Malformed manifest object — likely 400 Bad Request
Payment not provided or insufficient — returns HTTP 402 with x402 v2 payment-required envelope requesting USDC on Base mainnet (chain ID 8453)
Network timeout or service unavailability — 5xx error

Input

Schema · Request body

Field	Type	Description
manifest	object
content_hash	string
expected_creator	string
expected_generator	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true
  }
}

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