ForgeMesh AI Notarization & Proof

Name: ForgeMesh AI Notarization & Proof
Price: 0.001 USD

x402

ForgeMesh AI Notarization & Proof is a paid API for AI agents from notary-solana.forgemesh.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Cryptographically notarizes an AI model's prompt-response pair and returns an ed25519-signed attestation receipt with a content hash, enabling third parties to verify authenticity.

Price / call$0.001

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Success—

StatusUnknown

How this service works

Paid AI output notarization via x402. Prove any AI response is authentic with cryptographic receipts.

Output

Returns a JSON object containing: a base64-encoded ed25519 signature over the content hash, the SHA-256 content hash of the prompt+response+timestamp, the signer's ed25519 public key, a unique attestation ID (e.g. att_0123...), a receipt URL for public verification, a private receipt token for the caller, the notarized timestamp, the model ID, the blockchain anchor status (pending/confirmed), and a flag indicating whether payload was stored server-side.

Example use cases

Legal compliance AI output certification

“I need to notarize this GPT-4 response I'm submitting as evidence — the prompt was 'What are the contractual obligations under clause 7?' and the model replied with a two-paragraph legal summary. Can you get me a signed cryptographic receipt with a content hash so I can prove it wasn't tampered with?”

Journalist verifying AI-assisted reporting

“I used claude-fable-5 to help draft a fact summary and I need to prove the AI actually produced that exact output before I edited it. The prompt was 'List verified facts about the 2024 election results' and the response was three bullet points. Please notarize it and give me an attestation ID and receipt URL.”

AI agent audit trail for enterprise workflow

“Our compliance team requires a cryptographic proof for every AI decision in our pipeline — please notarize this model output from openai/gpt-5 where the prompt was 'Approve or deny this loan application based on the following criteria' and the response was 'Deny' with a timestamp of 2026-07-03T11:45:00Z, so we have a verifiable record.”

Technical details

Endpoint

POSThttps://notary-solana.forgemesh.io/api/notarize?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a cryptographically verifiable, tamper-evident proof that a specific AI model produced a specific response to a specific prompt — especially for legal, compliance, audit, or publishing contexts where authenticity must be demonstrable to third parties. Prefer this over simple logging when you need non-repudiation (ed25519 signature) rather than just a database record, and when the $0.001 USDC cost per attestation is acceptable. Less suitable if you need batch notarization of thousands of responses at once or if you require on-chain finality before proceeding.

Side effects

Payment not included or insufficient — 402 Payment Required with x402 challenge
Missing required fields (prompt or response) — 400 Bad Request
Invalid model_id format — 400 validation error
Malformed client_timestamp (non-ISO-8601) — 400 Bad Request
Service unavailable or Solana anchor backend down — 503 with retry-after
Receipt token lost — cannot re-retrieve private token after initial response

Input

Schema · Request body

Field	Type	Description
prompt	string	Exact prompt/input sent to the model
metadata	object	Optional caller metadata, <= 4 KB — accepted but NOT persisted or hashed (reserved for future opt-in retention)
model_id	string	Model identifier, e.g. openai/gpt-5 or claude-fable-5
response	string	Exact model output being notarized
client_timestamp	string	ISO-8601 time the inference ran (optional; included in the content hash)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "anchor": {
      "status": "pending"
    },
    "model_id": "openai/gpt-5",
    "algorithm": "ed25519",
    "signature": "base64-ed25519-signature",
    "receipt_url": "https://notary.forgemesh.io/api/receipt/att_0123456789abcdef01234567",
    "content_hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
    "notarized_at": "2026-07-03T12:00:01.000Z",
    "receipt_token": "private-receipt-token",
    "signer_pubkey": "base64-ed25519-public-key",
    "attestation_id": "att_0123456789abcdef01234567",
    "payload_stored": false,
    "client_timestamp": "2026-07-03T12:00:00Z"
  }
}

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How this service works

Paid AI output notarization via x402. Prove any AI response is authentic with cryptographic receipts.

Output

Example use cases

Legal compliance AI output certification

Journalist verifying AI-assisted reporting

AI agent audit trail for enterprise workflow

Technical details

Endpoint

POSThttps://notary-solana.forgemesh.io/api/notarize?utm_source=zero.xyz

When to prefer

Side effects

Payment not included or insufficient — 402 Payment Required with x402 challenge
Missing required fields (prompt or response) — 400 Bad Request
Invalid model_id format — 400 validation error
Malformed client_timestamp (non-ISO-8601) — 400 Bad Request
Service unavailable or Solana anchor backend down — 503 with retry-after
Receipt token lost — cannot re-retrieve private token after initial response

Input

Schema · Request body

Field	Type	Description
prompt	string	Exact prompt/input sent to the model
metadata	object	Optional caller metadata, <= 4 KB — accepted but NOT persisted or hashed (reserved for future opt-in retention)
model_id	string	Model identifier, e.g. openai/gpt-5 or claude-fable-5
response	string	Exact model output being notarized
client_timestamp	string	ISO-8601 time the inference ran (optional; included in the content hash)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "anchor": {
      "status": "pending"
    },
    "model_id": "openai/gpt-5",
    "algorithm": "ed25519",
    "signature": "base64-ed25519-signature",
    "receipt_url": "https://notary.forgemesh.io/api/receipt/att_0123456789abcdef01234567",
    "content_hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
    "notarized_at": "2026-07-03T12:00:01.000Z",
    "receipt_token": "private-receipt-token",
    "signer_pubkey": "base64-ed25519-public-key",
    "attestation_id": "att_0123456789abcdef01234567",
    "payload_stored": false,
    "client_timestamp": "2026-07-03T12:00:00Z"
  }
}