Add Geographic Data to Your GPT in 2 Minutes
ApogeoAPI works natively as a GPT Action. Countries, cities, live exchange rates, and IP geolocation — available to any custom GPT with zero code.
Set up in 3 steps
From zero to a GPT with geographic superpowers in under 2 minutes.
Get your API key
Sign up at apogeoapi.com and copy your key from the dashboard. The free tier includes a 14-day full-access trial — no credit card required.
Create a new GPT Action
In your GPT editor, go to Actions → Add Action → paste the OpenAPI spec URL below. Set Authentication to API Key, with header name X-API-Key.
https://api.apogeoapi.com/api/yamlStart using it
Your GPT can now answer questions like "What's the capital of Brazil?", "Convert $100 to EUR", or "Where is IP 8.8.8.8 located?"
8 tools available to your GPT
Each tool maps directly to an ApogeoAPI endpoint. GPT calls them automatically based on the user's question.
List all 250+ countries with flags, capitals, and regions
Get full data for any country by ISO code
Search countries by name, region, or currency
Get all states/provinces for a country
Access 150K+ cities with coordinates and timezones
Live USD exchange rate for 161 currencies
Geolocate any IPv4 or IPv6 address
Search across countries, states, and cities at once
OpenAPI spec for your GPT Action
Paste the spec URL directly into the GPT Action editor, or download the YAML and import it manually.
Spec URL: https://api.apogeoapi.com/api/yaml
Authentication:
Type: API Key
Header: X-API-Key
Value: your_apogeoapi_keyThe spec is also available at api.apogeoapi.com/api/docs in interactive format.
Example prompts your GPT can answer
Once the action is connected, your GPT handles these naturally — no extra configuration needed.
What countries use the Euro as their currency?
Convert 500 USD to Japanese Yen at the current rate
What timezone is Buenos Aires in?
List all states in Australia
Where is IP address 185.220.101.1 located?
What's the capital and population of Vietnam?
Give your GPT geographic superpowers
Free API key. 14-day full trial. No credit card required.