Creates or verifies hash-only caller-submitted x402 response provenance records
Creates or verifies hash-only caller-submitted x402 response provenance records with scoped idempotency and one-time lookup secrets.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
319 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.blockchainmoneymap.com/api/x402/x402-response-provenance-notary
| Category | Everything else |
|---|---|
| Provider host | api.blockchainmoneymap.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.01 | 319 ms |
Example input (from the provider)
{
"body": {
"amount": "0.01",
"currency": "USDC",
"endpoint_path": "/api/x402/wallet-snapshot",
"generated_at": "2026-07-21T12:00:00.000Z",
"idempotency_key": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"idempotency_scope_token": "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
"mcp_tool_name": "bmm_wallet_snapshot",
"mode": "create",
"operation_id": "wallet_snapshot",
"payment_network": "base",
"response_hash": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"retention_class": "short",
"schema_version": "v0.1",
"service_label": "Wallet Snapshot response hash",
"tool_id": "wallet_snapshot"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"amount": {
"maxLength": 32,
"type": "string"
},
"challenge_hash": {
"pattern": "^sha256:[a-fA-F0-9]{64}$",
"type": "string"
},
"currency": {
"enum": [
"USDC"
],
"type": "string"
},
"endpoint_path": {
"maxLength": 160,
"type": "string"
},
"generated_at": {
"format": "date-time",
"type": "string"
},
"idempotency_key": {
"maxLength": 160,
"minLength": 32,
"pattern": "^[A-Za-z0-9_-]{32,160}$",
"type": "string"
},
"idempotency_scope_token": {
"maxLength": 160,
"minLength": 43,
"pattern": "^[A-Za-z0-9_-]{43,160}$",
"type": "string"
},
"lookup_secret": {
"maxLength": 160,
"minLength": 43,
"pattern": "^[A-Za-z0-9_-]{43,160}$",
"type": "string"
},
"mcp_tool_name": {
"maxLength": 120,
"type": "string"
},
"metadata_hash": {
"pattern": "^sha256:[a-fA-F0-9]{64}$",
"type": "string"
},
"mode": {
"enum": [
"create",
"verify"
]
},
"notary_id": {
"maxLength": 120,
"minLength": 24,
"pattern": "^[A-Za-z0-9_-]{24,120}$",
"type": "string"
},
"operation_id": {
"maxLength": 120,
"type": "string"
},
"payment_network": {
"maxLength": 64,
"type": "string"
},
"receipt_hash": {
"pattern": "^sha256:[a-fA-F0-9]{64}$",
"type": "string"
},
"response_hash": {
"pattern": "^sha256:[a-fA-F0-9]{64}$",
"type": "string"
},
"retention_class": {
"enum": [
"short",
"standard",
"support"
],
"type": "string"
},
"schema_version": {
"maxLength": 40,
"type": "string"
},
"service_label": {
"maxLength": 200,
"type": "string"
},
"tool_id": {
"maxLength": 120,
"type": "string"
}
},
"required": [
"mode"
],
"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": {
"additionalProperties": false,
"properties": {
"confidence": {
"enum": [
"high",
"medium",
"low"
],
"type": "string"
},
"decision": {
"enum": [
"record_created",
"record_replayed",
"record_verified",
"hash_mismatch"
],
"type": "string"
},
"endpoint": {
"enum": [
"x402-response-provenance-notary"
]
},
"generated_at": {
"format": "date-time",
"type": "string"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"lookup_secret": {
"description": "Returned once only on record_created responses.",
"type": "string"
},
"metadata": {
"additionalProperties": false,
"properties": {
"paymentStatus": {
"type": "string"
}
},
"required": [
"paymentStatus"
],
"type": "object"
},
"notary_id": {
"type": "string"
},
"pricePaid": {
"type": "object"
},
"product_family": {
"enum": [
"agent_expansion_v3_api"
]
},
"recommended_next_action": {
"type": "string"
},
"request_id": {
"type": "string"
},
"retention": {
"type": "object"
},
"risk_flags": {
"items": {
"type": "string"
},
"type": "array"
},
"stored_hashes": {
"type": "object"
},
"summary": {
"type": "string"
},
"tool_id": {
"enum": [
"x402_response_provenance_notary"
]
},
"version": {
"enum": [
"v0.1"
]
},