Integrating APIs

Want your app to show live crypto prices or generate AI images?

With dev.fun, you can integrate any external API into your vibecoded app — all through plain prompts, to integrate external data into your app.

How It Works

When you describe a feature that needs data from an external source, simply mention it in your prompt.

The AI will:

Create a custom backend function that connects to the API

Process the API’s response

Make it available for your app to use

Example Prompts

plain text

Call the OpenAI API using SECRET_KEY and generate an image using the user input as the description.

plain text
Fetch the latest $PUMP price from the Dexscreener API and show it on screen.

Handling API Keys Securely

Most APIs require a secret key for authentication — this proves you’re authorized and lets the service bill your account if needed.

With dev.fun, you can store and use API keys securely:

Go to your app’s Configuration tab

Add a new secret under Secret Keys (e.g., MY_SECRET_KEY)

Include it in your prompt:

plain text

Create a function that calls https://dexscreener.com/solana/ using MY_SECRET_KEY and displays the price data.

(Optional) Add relevant details from the API’s documentation for more accurate results

Devbase will handle:

Secure API calls

Parsing JSON responses

Updating your UI — all from one prompt

Where You Can Use API Calls

You can link API calls to:

Buttons

App load events

Conditions

Other functions

This makes your app dynamic, real-time, and connected to the outside world.

Summary – Using APIs with dev.fun

Securely call any external API

Store & manage API keys under Configuration → Secret Keys

Use plain prompts to build the API logic

Display API data anywhere in your app

No coding, manual authentication, or parsing required — just prompt the AI