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User-Agent String Parser
x402
User-Agent String Parser is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-30).
Parses a raw User-Agent string into structured browser, OS, and device components without any network calls
Price / call$0.001
Success—
StatusUnknown
How this service works
Call when an agent needs a User-Agent string parsed into browser, OS, and device. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/ua-parse first.
Output
A structured breakdown of the User-Agent string including browser name and version, operating system name and version, and device type (e.g. mobile, desktop, bot), returned as parsed fields without any network lookup.
Example use cases
Analytics pipeline device classification
“I have this user-agent from a web request log — 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36' — can you tell me what browser, OS, and device type it corresponds to?”
Conditional content delivery for mobile vs desktop
“Before serving the page, check this user-agent string and tell me if the user is on a mobile device or desktop: 'Mozilla/5.0 (Linux; Android 13; Pixel 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Mobile Safari/537.36'”
Security audit of suspicious request headers
“We got an unusual request and I need to know what browser and OS sent it — please parse this user-agent: 'curl/7.88.1'”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/ua-parse?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, offline User-Agent parsing with no external network dependency — ideal for high-throughput log processing or pipelines where latency and privacy matter. Prefer the free sandbox endpoint (/v1/sandbox/ua-parse) for development and testing before committing to the paid version at $0.001 USDC per call.
Side effects
- Empty or missing user_agent field returns validation error
- User-agent string longer than 512 characters is rejected
- Unrecognizable or highly unusual user-agent strings may result in unknown fields or partial parsing
- Payment failure (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| user_agent | string | Raw User-Agent header value to parse into browser, OS, and device class. |
Tags
x402
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