# base44

base44 builds web apps from a chat prompt. You'll add the AddressZen Address Lookup with our [React component](/docs/address-lookup/react.md).

## What you'll add[​](#what-youll-add "Direct link to What you'll add")

The [AddressZen Address Lookup](/docs/address-lookup.md) on any address form, via its [React component](/docs/address-lookup/react.md).

## 1. Get an API key[​](#1-get-an-api-key "Direct link to 1. Get an API key")

* Quick test: paste `ak_test` as your key. Capped at 5 lookups/day. Will break in production.
* Real key: [sign up at addresszen.com/signup](https://addresszen.com/signup) for a free trial balance.

## 2. Starter prompt[​](#2-starter-prompt "Direct link to 2. Starter prompt")

Paste this into the base44 chat with your `ak_…` key dropped in. It points the agent at a [reference page](/docs/integrations/base44-prompt.md) carrying the React-specific integration rules — including where the key should live for your plan — so the prompt itself stays short and the agent handles the rest:

```
Find every address form in this app and list them, then ask me to

confirm which ones should get the AddressZen Address Lookup. Add it

to the forms I confirm using the AddressZen React component

(@addresszen/react).



This is a React app. Fetch and follow the integration rules at:

https://docs.addresszen.com/docs/integrations/base44-prompt.md



My API key is ak_xxxxxxxx — place it wherever those rules say it belongs for

this app (it's a publishable browser key). After deploying, print the app's

origin in chat so I can add it to the key's Allowed URLs.
```

The full rule set lives at [base44 integration rules](/docs/integrations/base44-prompt.md) if you want to read it yourself.

## 3. Lock down your API Key[​](#3-lock-down-your-api-key "Direct link to 3. Lock down your API Key")

1. When you're ready to go live, apply the appropriate [Allow URLs](/docs/guides/api-key-secure.md#allow-urls) setting to your key.
2. Add the origins your app runs on, e.g. `*.base44.app` (preview) and `*.yourdomain.com` (production).

## Need help?[​](#need-help "Direct link to Need help?")

* File an issue: [github.com/addresszen/feedback](https://github.com/addresszen/feedback/issues)
* Email: <support@addresszen.com>