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User-Agent String Parser
x402
User-Agent String Parser is a paid API for AI agents from api.aventtech.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).
Parses a user-agent string into structured browser, engine, OS, device type/vendor/model, CPU architecture, and bot-likelihood fields.
Price / call$0.01
Success—
StatusUnknown
How this service works
User-agent string parsing: browser, engine, OS, device type/vendor/model, CPU architecture, plus a likely-bot flag. For agents analyzing logs or adapting responses per client.
Output
Returns a structured breakdown of the user-agent string including: browser name and version, rendering engine name and version, operating system name and version, device type (mobile/tablet/desktop/etc.), device vendor, device model, CPU architecture, and a boolean or flag indicating whether the client is likely a bot or crawler.
Example use cases
Bot traffic filtering in logs
“I have this user-agent from my server log: 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)' — can you parse it and tell me if it's flagged as a bot, and what browser and OS it claims?”
Mobile vs desktop detection for adaptive UI
“Before rendering the page, parse this user-agent — 'Mozilla/5.0 (Linux; Android 13; Pixel 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Mobile Safari/537.36' — and tell me the device type, vendor, and model so I can decide which layout to serve.”
Security audit of unusual client requests
“We got a weird request with this user-agent: 'python-requests/2.28.1' — parse it and let me know the browser, OS, CPU architecture, and whether it's likely an automated bot or script.”
Technical details
Endpoint
GEThttps://api.aventtech.com/parse/useragent?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, structured breakdown of a raw user-agent string into its constituent parts — especially when bot detection, device classification, or browser/OS identification is needed programmatically. Prefer it over rolling your own regex parsing or relying on client-side hints when you need a reliable, maintained parser accessible via API with per-call pricing.
Side effects
- Missing 'ua' query parameter returns an error
- User-agent string exceeding 1000 characters is rejected
- Unrecognized or malformed UA strings may return empty/null fields for most components while still succeeding
- Payment failure or insufficient funds returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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