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Anything

Anything (also branded "Create Anything") builds React + Tailwind apps from chat, with a TypeScript serverless backend, a Neon Postgres database, and a per-project Saved Secrets store. The Anything docs are explicit: "Always use Saved Secrets for API keys. Never paste them directly into chat." Follow that rule for AddressZen too.

What you'll add​

International address autocomplete on any address form in your Anything app, powered by the Address Lookup widget.

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 for a free trial balance.

2. Store the key in Anything​

In your Anything project:

  1. Open Project Settings → Saved Secrets.
  2. Click Add a new secret.
  3. Name it ADDRESSZEN_API_KEY (use this exact name — the prompt below references it).
  4. Paste your ak_… key and save.

The Address Lookup widget runs in the browser, so the key needs to reach client code. The cleanest pattern on Anything is a thin backend function that reads the secret and returns it — the prompt below tells the agent to set that up.

3. Starter prompt​

Paste this into the builder. It points the agent at a reference page carrying the React-specific integration rules, so the prompt itself stays short:

Add international address autocomplete to an address form using the AddressZen
Address Lookup widget.

This is a React app. Fetch and follow the integration rules at:
https://docs.addresszen.com/docs/integrations/anything-prompt.md

Read the API key from the ADDRESSZEN_API_KEY Saved Secret via a backend
function. Do not hardcode it.

The full rule set lives at Anything integration rules if you want to read it yourself.

4. Lock down the key​

Once your app is running on *.created.app (or a custom domain), add both to your key's Allowed URLs. The widget runs client-side, so the key is visible to anyone viewing your site — Allowed URLs is what stops it being reused from other origins.

Common values to add:

  • your-app.created.app — Anything's default published subdomain
  • Your custom domain, if attached (Pro/Max plan)
  • localhost — while you're previewing inside the Anything builder

Need help?​