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CAPI2 Agent Commerce – Ad Claim Guard
x402
CAPI2 Agent Commerce – Ad Claim Guard is a paid API for AI agents from capi2-agent-commerce.vandurmedries.workers.dev, paid per call via x402, $0.12/call, status unknown (last checked 2026-09-14).
Validates advertising claims against prohibited terms and destination URLs, returning an allow/deny decision with tamper-evident verification status for autonomous agents.
Price / call$0.12
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 with a 'decision' field ('allow' or 'deny'), a 'destination_checked' boolean indicating whether the destination URL was evaluated, and a 'verification_status' string (e.g. 'supported') indicating the tamper-evident verification outcome.
Example use cases
Pre-flight ad copy compliance check
“Before I publish this ad, can you check if the claim 'Best weight loss pill — results guaranteed in 7 days!' violates any rules? Flag any prohibited terms like 'guaranteed' or 'weight loss pill' and verify the landing page at https://mystore.com/diet-pills is okay.”
Autonomous agent ad policy enforcement
“My marketing agent just generated this ad claim: 'Get rich quick with our proven investment system!' — run it through the ad claim guard with prohibited terms ['get rich quick', 'proven', 'guaranteed returns'] and check the destination https://finance-app.io/invest before it goes live.”
Blocklist-driven ad moderation pipeline
“I need to validate an ad that says 'Miracle cure for diabetes — 100% natural!' against our prohibited terms list including 'miracle', 'cure', and '100%', and confirm whether the destination URL https://healthproduct.com/diabetes is supported.”
Technical details
Endpoint
POSThttps://capi2-agent-commerce.vandurmedries.workers.dev/v1/ad-claim-guardWhen to prefer
Choose this endpoint when you need automated, policy-enforced validation of advertising claims before publication — especially in agentic workflows where AI-generated ad copy must be screened against a custom blocklist and a destination URL must be verified. It is ideal for compliance pipelines that require tamper-evident receipts and micropayment-gated access via x402. Prefer it over generic content moderation APIs when the use case is specifically advertising claims with a prohibited-terms list and URL destination checking.
Side effects
- Claim text shorter than 3 characters or longer than 1200 characters returns a validation error
- Invalid or malformed destination URL format causes a rejection
- More than 30 prohibited terms in the array triggers an input limit error
- Payment failure via x402 protocol results in a 402 response blocking the call
- Ambiguous or borderline claims may receive inconsistent allow/deny decisions
- Destination URL may be unreachable or unsupported, affecting the verification status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| claim | string | |
| destination_url | string | |
| prohibited_terms | array |
Output
Schema · Response
{
"type": "json",
"example": {
"decision": "allow",
"destination_checked": true,
"verification_status": "supported"
}
}Tags
x402
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