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agent402.tools User-Agent Parser
x402
agent402.tools User-Agent Parser is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Parses a User-Agent string to extract browser name, version, operating system, device class, and detect bots.
Price / call$0.001
Success—
StatusUnknown
How this service works
Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.
Output
Returns parsed components of the User-Agent string including browser name and version, operating system, device class (e.g. mobile/desktop/tablet), and a bot detection flag.
Example use cases
Example prompt
“Can you parse this user-agent string and tell me what browser, OS, and device type it is, and whether it's a bot? The string is: 'Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.1'”
Technical details
Endpoint
POSThttps://agent402.tools/api/user-agentWhen to prefer
Use this endpoint when you need fast, heuristic-based parsing of HTTP User-Agent strings to classify browsers, operating systems, device types, or detect bot traffic — especially in agent pipelines that process web request logs or filter automated traffic.
Side effects
- Empty or missing 'ua' field returns an error
- Malformed or truncated user-agent strings may produce partial or low-confidence results
- Unknown or very new user agents may not be recognized and return unknown fields
- Payment not included or insufficient USDC returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ua | string | User-Agent header value |
Output
Schema · Response
{
"type": "json",
"example": {
"os": "Windows",
"bot": false,
"device": "desktop",
"browser": "Chrome",
"version": "125.0"
}
}Tags
x402
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