notary.forgemesh.io
Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove an AI said X and verify model output authenticity, checkable free by anyone, anytime.
Offering
- Provider
- notary.forgemesh.io
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Security
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://notary.forgemesh.io/api/notarize- MIME type
- application/json
- First seen
- 2026-10-16T01:50:10.647Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x814EfE784709f5bF8dF47735D87602B01030e5D2"
}
]Observed health
- Status
- Healthy
- Latest latency
- 116 ms
- Average latency
- 322 ms
- HTTP status
- 200
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"type": "object",
"properties": {
"prompt": {
"type": "string",
"description": "Exact prompt/input sent to the model"
},
"response": {
"type": "string",
"description": "Exact model output being notarized"
},
"model_id": {
"type": "string",
"description": "Model identifier, e.g. openai/gpt-5 or claude-fable-5"
},
"client_timestamp": {
"type": "string",
"description": "ISO-8601 time the inference ran (optional; included in the content hash)"
},
"metadata": {
"type": "object",
"description": "Optional caller metadata, <= 4 KB — accepted but NOT persisted or hashed (reserved for future opt-in retention)"
}
},
"required": [
"prompt",
"response",
"model_id"
]
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"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"
},
"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": {
"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": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}