IPinfo Developer Resource

The quickest and easiest way to get started with IPinfo is to use one of our official libraries, which are available for many popular programming languages and frameworks. If you'd like to write your own library or interact directly with our API, then the documentation below can help you.


Your API token is used to authenticate you with our API and can be provided either as an HTTP Basic Auth username, a bearer token, or alternatively as a token URL parameter.

# With Basic Auth
$ curl -u $TOKEN: ipinfo.io

# With Bearer token
$ curl -H "Authorization: Bearer $TOKEN" ipinfo.io

# With token query parameter
$ curl ipinfo.io?token=$TOKEN

It's also possible to use the API without authentication in a more limited capacity.

JSON Response

We try to automatically detect when someone wants to call our API versus view our website, and then we send back the appropriate JSON response rather than HTML. We do this based on the user agent for known popular programming languages, tools, and frameworks. However, there are a couple of other ways to force a JSON response when it doesn't happen automatically.

One is to append /json at the end of any request:

$ curl ipinfo.io/json
$ curl ipinfo.io/

The other is to set the Accept header to application/json:

$ curl -H "Accept: application/json" ipinfo.io
$ curl -H "Accept: application/json" ipinfo.io/

IP Address Parameter

The API supports passing in a single IPv4 or IPv6 IP address. Alternatively, if you do not pass in any IP address, we'll return details for the calling address. This allows you to look up your own (or a visitor to your site) IP address details without knowing the IP address in advance.

# Get details for
$ curl ipinfo.io/$TOKEN

# Get details for 2001:4860:4860::8888
$ curl ipinfo.io/2001:4860:4860::8888?token=$TOKEN

# Get details for your own IP address, which'll be included in the response
$ curl ipinfo.io?token=$TOKEN


Our API is available over a secure HTTPS connection for all users. Simply add https:// to the request URLs to make the requests secure.

# Get details for your own IP address over HTTPS
$ curl https://ipinfo.io?token=$TOKEN

Rate Limits

Free usage of our API is limited to 50,000 API requests per month. If you exceed that limit, we'll return a 429 HTTP status code to you.

Paid plans come with higher monthly limits, and configurable alerts.

Filtering Responses

You can filter the API response down to specific fields or objects by adding the field or object name to the URL. In the case of a field you'll get it returned in plaintext, and an object will get returned as JSON.

# Get json the org field as plaintext
$ curl ipinfo.io/$TOKEN
AS15169 Google Inc.

# Get just the city as plaintext
$ curl ipinfo.io/$TOKEN
Mountain View

# Get country ISO code as plaintext
$ curl ipinfo.io/$TOKEN

JSONP/ CORS Requests

JSONP and CORS are supported, allowing you to use ipinfo.io entirely in client-side code. For JSONP you just need to specify the callback parameter, e.g. http://ipinfo.io/?callback=callback&token=$TOKEN.

Request visitor data using Fetch API (Promise)

  (response) => response.json()
  (jsonResponse) => console.log(jsonResponse.ip, jsonResponse.country)

Request visitor data using Fetch API (Async/Await)

const request = await fetch("https://ipinfo.io/json?token=$TOKEN")
const jsonResponse = await request.json()

console.log(jsonResponse.ip, jsonResponse.country)

Request visitor data using JSONP

  function recordData (data) {
    console.log(data.ip, data.country)
<script src="https://ipinfo.io/json?callback=recordData"></script>