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Polyform URL Safety Check
x402
Polyform URL Safety Check is a paid API for AI agents from api.polyform.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Checks a URL for safety risks and returns a safety verdict with a risk score via a micropayment-gated API.
Price / call$0.05
Success—
StatusUnknown
How this service works
Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.
Output
Returns a JSON object containing a 'verdict' field (e.g. 'SAFE') and a numeric 'riskScore' (e.g. 0), indicating whether the URL is considered safe and how risky it is on a scale.
Example use cases
Screen user-submitted links
“A user just submitted this link in our community forum — https://free-prizes-now.biz — can you check if it's safe before we allow it to be posted?”
Verify affiliate link before campaign
“We're about to include https://partner-redirect.net/promo in our marketing email — can you run a safety check on it and tell me the risk score?”
Agent browsing safety gate
“Before my research agent visits https://leaked-docs.io, check if that URL is flagged as dangerous or risky.”
Technical details
Endpoint
GEThttps://api.polyform.org/v1/url/safety?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, no-account-required URL safety check payable per-call in USDC via x402 — ideal for AI agents that need to gate browsing or validate user-submitted links without managing API keys or subscriptions.
Side effects
- Missing or malformed URL input returns a validation error
- Network or upstream lookup failure may return a 5xx error
- Ambiguous or newly registered URLs may have limited signal, potentially returning a low-confidence score
- Payment failure via x402 results in a 402 response and no data returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"verdict": "SAFE",
"riskScore": 0
}
}Tags
x402
Reviews
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