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Foundry User-Agent Parser
x402
Foundry User-Agent Parser is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Parses a User-Agent string to extract browser name and version, OS and version, device type, and bot/AI crawler detection
Price / call$0.001
Success—
StatusUnknown
How this service works
User agent parser: browser and version, OS, device type, and whether it is a bot or AI crawler. Input: a User-Agent string.
Output
Returns a JSON object with: browser (name string), browser_version, os (operating system name), os_version, device (e.g. 'desktop', 'mobile', 'tablet'), is_bot (boolean), bot (bot name if detected, else null), and the original user_agent string echoed back.
Example use cases
Bot traffic detection in logs
“I have this user agent from my server logs: 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)' — can you parse it and tell me if it's a bot and which one?”
Mobile vs desktop audience analytics
“Parse this user agent and tell me whether the visitor was on a mobile device or desktop: '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'”
AI crawler identification for access control
“We're trying to block AI scrapers — can you check this user agent and tell me if it's an AI crawler: 'CCBot/2.0 (https://commoncrawl.org/faq/)'?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/user-agent?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, structured parsing of a single User-Agent string including bot and AI crawler detection. It is ideal for enriching request logs, gating access for bots, or classifying visitor device type without running a local UA parsing library. Choose this over browser fingerprinting services when you only have the UA string and need quick classification.
Side effects
- Empty or missing input string returns an error
- Extremely malformed or non-standard user agent strings may result in null fields for unrecognized components
- Very long strings beyond 8000 characters will be rejected
- Novel or rare bot user agents may not be recognized and is_bot may return false
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | A User-Agent header value |
Output
Schema · Response
{
"type": "json",
"example": {
"os": "Windows",
"bot": null,
"device": "desktop",
"is_bot": false,
"browser": "Chrome",
"os_version": "10.0",
"user_agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0 Safari/537.36",
"browser_version": "130.0"
}
}Tags
x402
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