Essential APIs for Modern Development

User Agent Parser API.

Parse any user agent string to extract browser, OS, and device information. Detect bots, crawlers, and mobile devices with high accuracy. Essential for analytics, A/B testing, and device-specific experiences.

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Free tier, no card< 200ms responses99.9% uptime SLA

GET/v1/useragentparserlive

query

Response200 OK · sample

{
  "status": "ok",
  "error": null,
  "data": {
    "ua": "Mozilla/5.0 (Windows NT 6.4) AppleWebKit/537.36.0 (KHTML, like Gecko) Chrome/60.0.0.0 Safari/537.36.0",
    "browser": {
      "name": "Chrome",
      "version": "60.0.0.0",
      "major": "60"
    },
    "engine": {
      "name": "Blink",
      "version": "60.0.0.0"
    },
    "os": {
      "name": "Windows",
      "version": "10"
    },
    "device": {},
    "cpu": {},
    "isMobile": false,
    "isBot": false,
    "summary": "Chrome 60 on Windows 10"
  }
}

Sample response · verify to run one live call, no signup

How it works

User Agent Parser API

Comprehensive user agent parsing and detection
IP geolocation with city-level accuracy
VPN, proxy, and Tor detection
DNS and WHOIS record lookups

1
Send one request
A single authenticated GET with the location you care about — no SDK required.
```
GET /v1/useragentparser?query=…
x-api-key: your_key
```
2
We do the aggregation
Each request pulls from multiple upstream sources and computes the derived fields for you.
3
Get clean JSON back
One structured object, typically under 200 ms — ready to render.
```
{ ua, browser, engine, … }
```

The response

Everything in a single call.

/v1/useragentparserapplication/json

ua"Mozilla/5.0 (Windows NT 6.4) AppleWebKit/537.36.0 (KHTML,…"

browsername, version, major

enginename, version

osname, version

device

cpu

isMobilefalse

isBotfalse

summary"Chrome 60 on Windows 10"

Use cases

What developers build with it.

Real applications shipping on this endpoint today — each with the numbers that made it worth wiring up.

See every use case

User Agent Data for Analytics

Parse user agent strings to extract browser name/version, operating system, device type, and bot detection. Build device analytics dashboards and prioritize browser support.

Browser and version breakdownOperating system statisticsMobile vs desktop segmentation

Accurate parsingfor browser detection

Better prioritizationfor browser support

< 50mstypical parsing time

Bot & Crawler Detection

Our User Agent Parser identifies known bots, search engine crawlers, and automated tools. Combined with VPN detection, build robust bot protection for your applications.

Identify major search engine crawlersDetect known bot signaturesSeparate bot traffic in analytics

95% accuracybot detection

Protect APIsfrom abuse

Clean analyticsno bot noise

Device-Specific Content Delivery

Use device detection to serve device-appropriate content. Show mobile-optimized images, disable heavy features on low-power devices, and deliver platform-specific experiences.

Accurate mobile/tablet/desktop detectionOptimize for device capabilitiesReduce bandwidth for mobile users

40% fastermobile page loads

Better UXper device type

Lower bouncerate on mobile

Start coding

Call it in your language.

Copy a working request, or install a typed SDK. Same endpoint, same key.

const res = await fetch("https://api.apiverve.com/v1/useragentparser", { method: "POST", headers: { "x-api-key": "YOUR_API_KEY" } });
const { data } = await res.json();
console.log(data);

Included in your key

One subscription, the whole essential apis for modern development stack.

Every related API ships with your key — no separate plans, no extra keys, one bill.

See pricing

8APIs in this bundle

99.9%uptime SLA

The bundle

useragentparserYou’re hereiplookup vpndetector dnslookup whoislookup tordetect domainavailability sslchecker

No code required

Wire it into the tools you already run.

Ready-made recipes for Zapier, Make, and n8n — trigger on an event, and the data lands where your team works.

Google Sheets

Parse user agents from website logs

WhenNew row added with user agent string

ThenParse user agent → update row with result

Slack

Alert on bot traffic detection

WhenNew visitor (via webhook)

ThenParse user agent → post alert if bot

Airtable

Enrich visitor records with device data

WhenNew record created

ThenParse user agent → populate fields

Notion

Build a visitor device database

WhenNew database item created

ThenParse user agent → update properties

Salesforce

Parse visitor user agents on lead creation

WhenNew lead created

ThenParse user agent → update custom field

GitHub

Add device info to bug report issues

WhenNew issue opened

ThenParse user agent → add comment

Browse all integrations

Learn

Understand the data behind the API.

Anatomy of a User Agent String

Understanding the structure and meaning of user agent strings.

Bot and Crawler Detection Techniques

How to identify bots, crawlers, and automated traffic.

Building Device-Specific User Experiences

Using device detection to optimize content delivery and performance.

Questions about the API

How accurate is the IP geolocation?

Our IP lookup provides city-level accuracy for most broadband IP addresses, with high country-level accuracy. We update our database regularly.

Can the VPN detector identify all VPNs?

We maintain an extensive database of VPN, proxy, and datacenter IP ranges. Detection is highly effective for known commercial VPN services.

What DNS record types are supported?

We support all major DNS record types: A, AAAA, MX, TXT, CNAME, NS, SOA, PTR, and more. You can query multiple types in a single request.

Are these APIs suitable for security applications?

Yes! Many customers use our APIs for fraud prevention, access control, bot detection, and security monitoring in production environments.

Is there a free tier available?

Yes! The free tier includes 1,000 API calls per month for development and testing purposes. Commercial use requires a paid plan. Check our pricing page for details.

How accurate is bot detection?

Our user agent parser identifies known bot signatures reliably. We detect major search engine crawlers, social media bots, and automated tools based on user agent patterns.

What are the rate limits?

Rate limits vary by plan. Check our pricing page for details. Our plans support high-traffic applications with generous limits designed for production use.

Can you parse mobile vs desktop browsers?

Yes! Our parser accurately distinguishes between mobile, tablet, and desktop devices by analyzing device type indicators in user agent strings.

Do you support Client Hints?

While we primarily parse traditional user agent strings, our parser is optimized for modern browsers and stays updated with the latest user agent formats and conventions.

How often is the parser database updated?

We update our user agent parsing rules monthly to support new browser releases, device types, and emerging bot signatures for accurate, current detection.