APIC Agent - user-agent lookup API

detect browser, OS & device from UA string.

With an uptime of 99.999% and average response time of 15ms, APIC Agent is used by 10,000+ users. Start using for free.

No credit card required
Free-forever plan available

Live Demo

Your User-Agent string

A lot of repositories on GitHub already use APIC Agent - find integration code in programming language of your choice.


Live output from the API

API Demo

Demo uses your user-agent string and APIC Agent's GET API

Use Cases

There's a lot of hidden information in the user agent string that can help you create a better customer experience and improve your conversion. All in real-time.

Right App Download
Tailored Buying Funnel
Customized Content
Spambot Protection
Crawler Protection
Customized Advertisments
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Use APIC Agent's REST API and avoid integrating with hard to maintain user-agent parser libraries - our API can be integrated quickly and is easy to understand.

Simple to Use

Our REST based JSON API is extremely simple to use, it is very easy to integrate with any programming language or tech stack.

Accurate Data

Data we use is based on Matomo's open source device database and is updated frequently.

Scalable Infrastructure

Our software stack is built to scale to millions of requests and our API is also built to respond fast.


While we are in beta, our API is free to use. We will continue to have a generous free plan when we launch more APIs and our pricing plans.

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400K API calls per day

API Agent is used by 10,000+ unique users in a month. They call the API more than 12 million in a month - that is over 400,000 requests daily.

APIC Agent serves over 400,000 requests per day already
Get Started


Using apicagent's API is very easy. We provide GET or POST variants of the same API - choose as per your preference, send your user-agent string as input and you get the response that you can use in your application.

GET https://api.apicagent.com

Simple and easy to get started with, works in browser too. If you prefer GET APIs, use this.

Learn more about GET API

POST https://api.apicagent.com

This works exactly like the GET API, except user-agent string is sent inside a JSON object.

Learn more about POST API
Read Docs