x402 payment security and pre-execution transaction risk screening for autonomous AI agents.
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Prepare the exact paid 402Shield request that must be completed before an autonomous payment executes. Submit the returned POST request with an x402-capable client. The paid response is ALLOW, REVIEW, or BLOCK. Execute the intended payment only after ALLOW; REVIEW and BLOCK should stop execution by default. Price: $0.005 USDC.
This tool isn't marked read-only, so it may change something on the server or in an account you connected.
Prepare the exact paid 402Shield request that must be completed before an autonomous payment executes. Submit the returned POST request with an x402-capable client. The paid response is ALLOW, REVIEW, or BLOCK. Execute the intended payment only after ALLOW; REVIEW and BLOCK should stop execution by default. Price: $0.005 USDC.
| Argument | Type | Description |
|---|---|---|
| policy |
| object |
| expected | object |
| requestId | string |
| requested* | object |
| transaction | object |
| transactionPolicy | object |
| expectedTransaction | object |
| simulateTransaction | boolean |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"requested"
],
"properties": {
"policy": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"expected": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"requestId": {
"type": "string"
},
"requested": {
"type": "object",
"required": [
"amountUsd",
"recipient",
"network",
"asset"
],
"properties": {
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"amountUsd": {
"type": [
"string",
"number"
]
},
"recipient": {
"type": "string"
},
"tokenAddress": {
"type": "string"
}
}
},
"transaction": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"transactionPolicy": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"expectedTransaction": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"simulateTransaction": {
"type": "boolean"
}
}
}