Every developer needs to detect public IP addresses at some point. Whether you're building a "What's my IP" feature, logging user locations, or configuring servers — you need a reliable, free IP API.
Most options either require signup (ipinfo), have strict rate limits (ip-api), or only return the IP with no context (ipify).
Here's one that does it all — no API key, no signup, no account required:
curl https://agent-gateway-kappa.vercel.app/ip
That's it. Returns your IP address as plain text. Let me show you what else it can do.
Three Endpoints, Zero Authentication
1. Get Your IP (Plain Text)
curl https://agent-gateway-kappa.vercel.app/ip
# → 203.0.113.42
Perfect for scripts where you just need the IP string:
MY_IP=$(curl -s https://agent-gateway-kappa.vercel.app/ip)
echo "Server IP: $MY_IP"
2. Get Your IP + Geolocation (JSON)
curl https://agent-gateway-kappa.vercel.app/ip/json
Returns:
{
"ip": "203.0.113.42",
"country": "United States",
"countryCode": "US",
"region": "California",
"city": "San Francisco",
"lat": 37.7749,
"lon": -122.4194,
"timezone": "America/Los_Angeles",
"isp": "Cloudflare Inc",
"org": "Cloudflare"
}
One request gives you everything — IP, country, city, coordinates, timezone, and ISP.
3. Look Up Any IP Address
curl https://agent-gateway-kappa.vercel.app/ip/geo/8.8.8.8
Pass any IP address and get full geolocation data back.
Code Examples
JavaScript (Node.js)
// Get your own IP
const res = await fetch('https://agent-gateway-kappa.vercel.app/ip/json');
const data = await res.json();
console.log(`You're in ${data.city}, ${data.country}`);
// Look up any IP
const lookup = await fetch('https://agent-gateway-kappa.vercel.app/ip/geo/1.1.1.1');
const info = await lookup.json();
console.log(`1.1.1.1 is in ${info.country}`);
Python
import requests
# Your IP + location
data = requests.get('https://agent-gateway-kappa.vercel.app/ip/json').json()
print(f"IP: {data['ip']}, Location: {data['city']}, {data['country']}")
# Bulk lookup
ips = ['8.8.8.8', '1.1.1.1', '208.67.222.222']
for ip in ips:
info = requests.get(f'https://agent-gateway-kappa.vercel.app/ip/geo/{ip}').json()
print(f"{ip}: {info.get('city', 'N/A')}, {info.get('country', 'N/A')}")
Go
resp, _ := http.Get("https://agent-gateway-kappa.vercel.app/ip")
body, _ := io.ReadAll(resp.Body)
fmt.Println("My IP:", string(body))
Browser (Frontend)
// Works from any website — CORS enabled
fetch('https://agent-gateway-kappa.vercel.app/ip/json')
.then(r => r.json())
.then(data => {
document.getElementById('ip').textContent = data.ip;
document.getElementById('location').textContent =
`${data.city}, ${data.country}`;
});
Comparison: Frostbyte vs ipify vs ip-api vs ipinfo
| Feature | Frostbyte | ipify | ip-api | ipinfo |
|---|---|---|---|---|
| Plain text IP | Yes | Yes | No | No |
| Geolocation (free) | Yes | No | Yes | Limited |
| API key required | No | No | No | Yes (for geo) |
| Rate limit | 120/min | Unlimited | 45/min | 50k/month |
| HTTPS (free) | Yes | Yes | No (paid only) | Yes |
| Lookup any IP | Yes | No | Yes | Yes |
| ISP/Org data | Yes | No | Yes | Yes |
Frostbyte gives you the best of all worlds: plain text like ipify, geolocation like ip-api, and HTTPS like ipinfo — all without requiring a key.
Use Cases
DevOps / Server Setup:
# Add your server's IP to a firewall allow list
SERVER_IP=$(curl -s https://agent-gateway-kappa.vercel.app/ip)
ufw allow from $SERVER_IP
Dynamic DNS:
# Update DNS record when IP changes
CURRENT_IP=$(curl -s https://agent-gateway-kappa.vercel.app/ip)
if [ "$CURRENT_IP" != "$LAST_IP" ]; then
# Update your DNS provider
echo "IP changed to $CURRENT_IP"
fi
Geo-Personalization:
const { country, timezone } = await fetch(
'https://agent-gateway-kappa.vercel.app/ip/json'
).then(r => r.json());
// Show local currency, language, or time
const localTime = new Date().toLocaleString('en-US', { timeZone: timezone });
API Rate Limiting by Region:
geo = requests.get(f'https://agent-gateway-kappa.vercel.app/ip/geo/{client_ip}').json()
if geo.get('countryCode') in ['US', 'GB', 'DE']:
rate_limit = 100 # Higher limit for target markets
else:
rate_limit = 30
Need More? Get an API Key
The public endpoints handle most use cases. But if you need:
- Higher rate limits (300 req/min vs 120)
- Access to 40+ additional APIs (DNS, screenshots, web scraping, crypto prices, code execution)
- Usage analytics and credit tracking
Create a free API key — no email required:
curl -X POST https://agent-gateway-kappa.vercel.app/api/keys/create
You get 200 free credits immediately. Each API call costs 1 credit.
Full API catalog: api-catalog-three.vercel.app
Try it right now — open your terminal and run:
curl https://agent-gateway-kappa.vercel.app/ip/json
No signup. No API key. Just your IP and location, instantly.
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