Notarize AI output in bulk: one signed Ed25519 attestation of the model response per recor
Notarize AI output in bulk: one signed Ed25519 attestation of the model response per record for up to 20 AI inferences in a single call — same content hash, receipt token, and anchor status as single notarization, giving you a cryptographic receipt for inference across an entire audit-trail pipeline.
5000 (raw units)
price
2
calls / 30d
1
unique payers
2026-09-04
updated
Provider
notary.forgemesh.io · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x814EfE784709f5bF8dF47735D87602B01030e5D2",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"records": [
{
"model_id": "openai/gpt-5",
"prompt": "What is 2+2?",
"response": "4"
},
{
"model_id": "claude-fable-5",
"prompt": "Capital of France?",
"response": "Paris"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"attestations": [
{
"algorithm": "ed25519",
"anchor": {
"status": "pending"
},
"attestation_id": "att_0123456789abcdef01234567",
"client_timestamp": "2026-07-03T12:00:00Z",
"content_hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
"model_id": "openai/gpt-5",
"notarized_at": "2026-07-03T12:00:01.000Z",
"payload_stored": false,
"receipt_token": "private-receipt-token",
"receipt_url": "https://notary.forgemesh.io/api/receipt/att_0123456789abcdef01234567",
"signature": "base64-ed25519-signature",
"signer_pubkey": "base64-ed25519-public-key"
}
],
"count": 2
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"records": {
"items": {
"properties": {
"client_timestamp": {
"description": "ISO-8601 time the inference ran (optional; included in the content hash)",
"type": "string"
},
"metadata": {
"description": "Optional caller metadata, <= 4 KB — accepted but NOT persisted or hashed (reserved for future opt-in retention)",
"type": "object"
},
"model_id": {
"description": "Model identifier, e.g. openai/gpt-5 or claude-fable-5",
"type": "string"
},
"prompt": {
"description": "Exact prompt/input sent to the model",
"type": "string"
},
"response": {
"description": "Exact model output being notarized",
"type": "string"
}
},
"required": [
"prompt",
"response",
"model_id"
],
"type": "object"
},
"maxItems": 20,
"minItems": 1,
"type": "array"
}
},
"required": [
"records"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"attestations": {
"items": {
"properties": {
"algorithm": {
"type": "string"
},
"anchor": {
"properties": {
"status": {
"type": "string"
}
},
"type": "object"
},
"attestation_id": {
"type": "string"
},
"client_timestamp": {
"type": [
"string",
"null"
]
},
"content_hash": {
"description": "sha256 hex over canonical {prompt, response, model_id, client_timestamp}",
"type": "string"
},
"model_id": {
"type": "string"
},
"notarized_at": {
"type": "string"
},
"payload_stored": {
"description": "false by default: prompt/response/metadata are not persisted",
"type": "boolean"
},
"receipt_token": {
"description": "Private receipt token; payload is not stored by default",
"type": "string"
},
"receipt_url": {
"type": "string"
},
"signature": {
"description": "base64 Ed25519 signature by the notary key",
"type": "string"
},
"signer_pubkey": {
"description": "base64 raw Ed25519 public key",
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"count": {
"type": "integer"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
}Use it
curl
curl "https://notary.forgemesh.io/api/notarize/batch" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://notary.forgemesh.io/api/notarize/batch");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://notary.forgemesh.io/api/notarize/batch")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/6436.json, and this resource appears in /discovery/resources and /discovery/search.