Overview
ip-fast.com is a lightweight, no-auth API that returns the caller's IP address along with associated country and city information. It is perfect for quickly detecting where a user is connecting from without any setup or API key. Simply make a GET request and receive instant geolocation data.
Beginner Tip
You can call this API directly from a browser or curl with no setup at all. Use the ?format=json query parameter to receive a structured JSON response instead of plain text.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"name": "Japan",
"capital": "Tokyo",
"population": 125800000,
"region": "Asia",
"languages": [
"Japanese"
],
"flag": "https://flagcdn.com/jp.svg",
"currencies": [
{
"code": "JPY",
"name": "Japanese yen"
}
]
} Field Reference
ip The public IP address of the requester country Country name associated with the IP address city City name associated with the IP address Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://ip-fast.com/api/ip/?format=json";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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