Compares caller-supplied x402 catalog, OpenAPI, MCP/tool metadata, and unpaid ch
Compares caller-supplied x402 catalog, OpenAPI, MCP/tool metadata, and unpaid challenge samples for endpoint, method, price, currency, network, receiver, and tool drift.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
361 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-catalog-drift-monitor
| Category | Market data |
|---|---|
| Provider host | api.blockchainmoneymap.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.01 | 361 ms |
Example input (from the provider)
{
"body": {
"catalog_json": {
"resources": [
{
"id": "wallet_snapshot",
"method": "POST",
"path": "/api/x402/wallet-snapshot",
"price": {
"amount": "0.01",
"currency": "USDC",
"network": "base",
"receiver": "0x2211E12e6Bc8Da27B48B9DD66A55f5C3388D713a"
}
}
]
},
"expected_currency": "USDC",
"expected_endpoint": "/api/x402/wallet-snapshot",
"expected_method": "POST",
"expected_network": "base",
"expected_price": "0.01",
"expected_receiver": "0x2211E12e6Bc8Da27B48B9DD66A55f5C3388D713a",
"expected_tool_id": "wallet_snapshot",
"openapi_json": {
"paths": {
"/api/x402/wallet-snapshot": {
"post": {
"operationId": "wallet_snapshot"
}
}
}
},
"payment_challenge_json": {
"x402": {
"amount": "0.01",
"currency": "USDC",
"network": "base",
"payTo": "0x2211E12e6Bc8Da27B48B9DD66A55f5C3388D713a",
"resource": "/api/x402/wallet-snapshot"
}
},
"service_url": "https://api.blockchainmoneymap.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"catalog_json": {
"additionalProperties": true,
"type": "object"
},
"expected_currency": {
"maxLength": 20,
"type": "string"
},
"expected_endpoint": {
"description": "Root-relative endpoint path expected by the buyer agent.",
"maxLength": 256,
"type": "string"
},
"expected_method": {
"default": "POST",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"expected_network": {
"maxLength": 40,
"type": "string"
},
"expected_price": {
"pattern": "^[0-9]+(\\.[0-9]{1,6})?$",
"type": "string"
},
"expected_receiver": {
"maxLength": 120,
"type": "string"
},
"expected_tool_id": {
"maxLength": 120,
"type": "string"
},
"mcp_tool_name": {
"maxLength": 120,
"type": "string"
},
"openapi_json": {
"additionalProperties": true,
"type": "object"
},
"payment_challenge_json": {
"additionalProperties": true,
"type": "object"
},
"service_url": {
"description": "Public HTTPS service URL used only as a sanitized label in v1.",
"format": "uri",
"maxLength": 2048,
"type": "string"
}
},
"required": [
"service_url",
"expected_endpoint"
],
"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": {
"checked_surfaces": {
"items": {
"type": "string"
},
"type": "array"
},
"confidence": {
"enum": [
"high",
"medium",
"low"
],
"type": "string"
},
"decision": {
"enum": [
"consistent",
"minor_drift",
"major_drift",
"insufficient_evidence",
"unsafe_target"
],
"type": "string"
},
"endpoint": {
"enum": [
"x402-catalog-drift-monitor"
]
},
"generated_at": {
"format": "date-time",
"type": "string"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"metadata": {
"additionalProperties": false,
"properties": {
"paymentStatus": {
"type": "string"
}
},
"required": [
"paymentStatus"
],
"type": "object"
},
"mismatches": {
"items": {
"additionalProperties": false,
"properties": {
"expected": {
"type": [
"string",
"number",
"boolean",
"null"
]
},
"explanation": {
"type": "string"
},
"field": {
"type": "string"
},
"observed": {
"type": [
"string",
"number",
"boolean",
"null"
]
},
"severity": {
"enum": [
"low",
"medium",
"high"
],
"type": "string"
},
"source": {
"type": "string"
}
},
"required": [
"field",
"severity",
"expected",
"observed",
"source"
],
"type": "object"
},
"type": "array"
},
"product_family": {
"enum": [
"agent_expansion_v2_api"
]
},
"recommended_next_action": {
"type": "string"
},
"request_id": {
"type": "string"
},
"risk_flags": {
"items": {
"type": "string"
},
"type": "array"
},
"summary": {
"type": "string"
},
"tool_id": {
"enum": [