URL safety check
Warning signs for a URL: redirect chain and final destination, TLS certificate, domain age, punycode and brand-lookalike tricks, bare IPs, and security-header grade.
URL safety check Free
Warning signs for a URL: redirect chain and final destination, TLS certificate, domain age, punycode and brand-lookalike tricks, bare IPs, and security-header grade.
- cost
- Free then $0.003 / call
- MCP tool
- web__url-safety
- method
- GET
Free up to 50 calls a day over MCP (500 with a free key), then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/web/url-safety
| Param | Type | Description |
|---|---|---|
| url | string | Public http(s) URL |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/web/url-safety?url=https%3A%2F%2Fwww.paypal.com%2Fuk%2Fhome" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/web/url-safety?url=https%3A%2F%2Fwww.paypal.com%2Fuk%2Fhome"
by fourzerotwo
Report this endpoint
Use it from an AI agent (MCP)
Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.
{
"mcpServers": {
"fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
}
}
# the call the agent makes
call_api {"tool": "web__url-safety", "arguments": {"url":"https://www.paypal.com/uk/home"}}
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