Check any x402 endpoint before paying, without paying
Check any x402 endpoint before paying, without paying: price in USD per network, asset (flags anything that is not official USDC), pay-to address and whether it is a contract, authorization timeout, Bazaar metadata, and risk alerts with a clear verdict.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
310 msmedian answer time
$0.004listed price per call
$0.004price 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.vextorium.com/v1/x402-inspect
| Category | Market data |
|---|---|
| Provider host | api.vextorium.com |
| Networks | eip155:10, eip155:5042, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| 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 | $0.004 | 310 ms |
Example input (from the provider)
{
"body": {
"method": "POST",
"url": "https://api.vextorium.com/validar-iban-pago"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"body": {
"description": "Optional JSON body to send (some endpoints price by input)",
"type": "object"
},
"method": {
"description": "HTTP method (POST default, or GET)",
"enum": [
"POST",
"GET"
],
"type": "string"
},
"url": {
"description": "Full URL of the x402 endpoint",
"type": "string"
}
},
"required": [
"url"
]
},
"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": {
"alerts": {
"items": {
"properties": {
"level": {
"type": [
"string",
"null"
]
},
"message": {
"type": [
"string",
"null"
]
}
},
"type": [
"null",
"object"
]
},
"type": [
"array",
"null"
]
},
"bazaar_profile": {
"type": [
"boolean",
"null"
]
},
"description": {
"type": [
"string",
"null"
]
},
"is_x402": {
"type": [
"boolean",
"null"
]
},
"note": {
"type": [
"string",
"null"
]
},
"payment_options": {
"items": {
"properties": {
"asset": {
"type": [
"null",
"string"
]
},
"asset_is_official_usdc": {
"type": [
"boolean",
"null"
]
},
"max_time_seconds": {
"type": [
"null",
"number"
]
},
"network": {
"type": [
"null",
"string"
]
},
"network_name": {
"type": [
"null",
"string"
]
},
"pay_to": {
"type": [
"null",
"string"
]
},
"pay_to_is_contract": {
"type": [
"boolean",
"null"
]
},
"price_usd": {
"type": [
"null",
"number"
]
},
"schema": {
"type": [
"null",
"string"
]
},
"units_amount": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"type": [
"array",
"null"
]
},
"response_type": {
"type": [
"string",
"null"
]
},
"url": {
"type": [
"string",
"null"
]
},
"verdict": {
"type": [
"string",
"null"
]
},
"version_x402": {
"type": [
"number",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}