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CAPI2 Agent Commerce x402 Payment Safety
x402
CAPI2 Agent Commerce x402 Payment Safety is a paid API for AI agents from capi2-agent-commerce.vandurmedries.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Validates an x402 payment request against a policy and returns a safety verdict with risk score and approved payment option
Price / call$0.005
Success—
StatusUnknown
How this service works
Programmable authority checks and tamper-evident receipts for autonomous agents, sold through sustainable x402 commerce.
Output
Returns a JSON object containing: a 'verdict' field ('allow' or 'deny'), a 'findings' array with any policy violations or risk signals, a numeric 'risk_score' (0 = no risk), and an 'approved_option' object specifying the approved payment amount and network (e.g. eip155:8453 for Base).
Example use cases
Pre-payment risk screening for AI agent
“I'm about to have my agent pay an x402-gated API — can you validate this payment_required object against my policy and tell me the verdict and risk score before it actually sends any funds?”
Policy compliance check for micropayments
“My policy only allows payments under 50000 units on Base mainnet — run this x402 payment request through the safety checker and confirm it gets an 'allow' verdict before my agent proceeds.”
Audit trail for sustainable commerce
“Check this x402 payment request against my compliance policy and give me the full findings and approved payment option so I have a verifiable record of the safety assessment.”
Technical details
Endpoint
POSThttps://capi2-agent-commerce.vandurmedries.workers.dev/v1/x402-payment-safetyWhen to prefer
Use this endpoint when an AI agent needs to screen an x402 payment request against a configurable policy before executing a payment — especially in autonomous agent pipelines where safety guardrails, verifiable receipts, and risk scoring are required before any funds move. Prefer this over generic payment processors when you specifically need x402 protocol support with policy-based allow/deny verdicts and evidence-backed findings on the Base network.
Side effects
- Missing or malformed 'policy' object results in validation error
- Missing or malformed 'payment_required' object returns error response
- Network not recognized or unsupported chain ID causes rejection
- Payment amount exceeds policy limits resulting in 'deny' verdict
- Service unavailable on Cloudflare Workers edge returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| policy | object | |
| payment_required | object |
Output
Schema · Response
{
"type": "json",
"example": {
"verdict": "allow",
"findings": [],
"risk_score": 0,
"approved_option": {
"amount": "10000",
"network": "eip155:8453"
}
}
}Tags
x402
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