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ToolVet Endpoint Check
x402
ToolVet Endpoint Check is a paid API for AI agents from toolvet.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Validates and vets a paid x402 API endpoint URL, returning its trust score, price, and safety verdict before an agent pays
Price / call$0.005
Success—
StatusUnknown
How this service works
The vetted directory of paid APIs and MCP servers for AI agents.
Output
A JSON object containing the canonical URL, price details (USD amount, network, asset symbol), listing metadata (ID and trust score), a verdict string ('ok' or risk level), a list of warnings, and a boolean indicating whether the pay-to address matches the directory listing and whether the challenge is valid.
Example use cases
Pre-payment safety check for agent
“I'm about to call and pay a new x402 API at https://api.maps.example/v2/geocode — can you run it through ToolVet first to see if it's vetted and what trust score it has?”
Scam detection for unknown paid API
“This x402 endpoint URL looks sketchy to me — can you check it on ToolVet to see if the pay-to address matches the listing and whether there are any warnings I should know about?”
Price verification before budget approval
“My agent wants to call https://api.ai.example/v1/generate on a per-request basis — look it up on ToolVet so I can confirm the official price in USDC and which network it's on before I approve the spend.”
Technical details
Endpoint
GEThttps://toolvet.app/api/v1/check?utm_source=zero.xyzWhen to prefer
Use this endpoint whenever an AI agent is about to make a paid x402 API call and needs to verify legitimacy before committing funds. Prefer this over blindly trusting any x402 challenge response, especially for newly discovered or unfamiliar endpoints. Ideal as a mandatory pre-flight check in any agentic payment workflow.
Side effects
- URL not found in ToolVet directory — endpoint may be unlisted or too new
- URL format invalid — must be a fully qualified x402 endpoint URL
- pay_to_matches=false — the endpoint's payment address does not match the vetted listing, indicating potential fraud
- valid_challenge=false — the 402 challenge itself is malformed or suspicious
- Network timeout if the ToolVet service is unavailable
- High warnings array — endpoint listed but flagged for anomalies
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://api.weather.example/v1/forecast",
"price": {
"usd": 0.001,
"network": "eip155:8453",
"asset_symbol": "USDC"
},
"listing": {
"id": "weather-forecast",
"trust_score": 91,
"pay_to_matches": true
},
"verdict": "ok",
"warnings": [],
"valid_challenge": true
}
}Tags
x402
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