Pre-payment risk and usefulness check for AI agents deciding whether to pay an x
Pre-payment risk and usefulness check for AI agents deciding whether to pay an x402 endpoint.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.002listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agent-paycheck.onrender.com/v1/check
| Category | Everything else |
|---|---|
| Provider host | agent-paycheck.onrender.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 8 from 5 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"endpoint_url": "https://example.com/x402/search",
"max_budget_usd": 0.01,
"output_schema": {
"available": "boolean"
},
"price_usd": 0.002,
"recent_activity": {
"last_30_days": 120
},
"task": "check current product availability before purchase"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"endpoint_url": {
"type": "string"
},
"input_schema": {
"type": "object"
},
"max_budget_usd": {
"type": [
"number",
"string"
]
},
"openapi_url": {
"type": "string"
},
"output_schema": {
"type": "object"
},
"price_usd": {
"type": [
"number",
"string"
]
},
"recent_activity": {
"type": "object"
},
"source_reputation": {
"type": "object"
},
"successful_settlements": {
"type": [
"number",
"object"
]
},
"task": {
"type": "string"
}
},
"required": [
"endpoint_url",
"task"
]
},
"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": {
"decision": {
"enum": [
"pay",
"manual_review",
"reject"
],
"type": "string"
},
"next_step": {
"type": "string"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"recommended_max_price_usd": {
"type": "number"
},
"score": {
"maximum": 100,
"minimum": 0,
"type": "number"
},
"warnings": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"decision",
"score",
"reasons",
"warnings",
"recommended_max_price_usd",
"next_step"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}