GPT-6 Astra + OpenCode - 3D WordPress Websites [This is INSANE]

OpenAI just dropped GPT-6 Astra — and the internet is going absolutely wild. People are building stunning 3D animations right in the browser, from spinning car engines to human anatomy breakdowns. But here’s the part nobody’s talking about yet: you can connect GPT-6 Astra to your WordPress website using OpenCode and build 3D animated pages automatically — just from a simple text prompt.

No coding. No page builder drag-and-drop. Just AI doing the heavy lifting.

In this step-by-step tutorial, we’ll show you exactly how to set it up.

🎬 Watch the full video here: https://youtu.be/5_GAxQ4fMKI

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What Is GPT-6 Astra?

GPT-6 Astra is OpenAI’s latest and most powerful AI model. Since its release, Twitter has been flooded with jaw-dropping 3D animations — things like:

• A fully interactive 3D house rendered in the browser
• A car engine that transforms itself in real time in 3D
• A human anatomy model where every body part tears apart in 3D form

It’s all being generated through GPT-6 Astra, and it’s seriously impressive. You can check out more examples directly on the OpenAI website.

⚠️ One thing to know upfront: GPT-6 Astra is NOT free. It’s one of the most expensive models OpenAI has ever released, and it burns tokens fast. If you’re using the API, keep a close eye on your usage. We’ll talk more about this at the end.

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What Is OpenCode?

OpenCode is an open-source AI coding agent — similar to Claude Code — that runs in your terminal. It lets you connect AI models like GPT-6 Astra to your local projects and give them tasks through natural language prompts.

In this tutorial, we’re using OpenCode to bridge GPT-6 Astra with WordPress using an MCP (Model Context Protocol) connection.

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What You’ll Need

Before we start, make sure you have:

• A WordPress website (self-hosted)
• An OpenAI account with API access
• Node.js installed on your computer
• OpenCode installed via NPM
• The WP MCP plugin for WordPress

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Step 1 — Generate Your GPT-6 Astra API Key

First, let’s grab your API key from OpenAI.

1. Go to platform.openai.com
2. Make sure you’re logged into your OpenAI account
3. Navigate to API Keys in the left sidebar
4. Click “Create a new secret key”
5. Give it a name (e.g., GPT-6 Astra Test)
6. Set an expiration date — for testing, 1 day is fine
7. Click “Create secret key”
8. Copy the key immediately — you won’t be able to see it again

Keep this key safe. You’ll need it in the next steps.

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Step 2 — Install Node.js

OpenCode runs via NPM, so you need Node.js on your machine first.

1. Go to nodejs.org/download
2. Download the version for your operating system (Windows, macOS, or Linux)
3. Install it following the on-screen instructions
4. Verify the install by opening your terminal and typing node -v

Once Node.js is confirmed, you’re ready to install OpenCode.

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Step 3 — Install OpenCode

1. Go to opencode.ai
2. Follow the installation instructions for your OS, or run the NPM install command from your terminal
3. Once installed, open your terminal and type:

opencode

Hit Enter — this launches the OpenCode AI agent interface.

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Step 4 — Connect GPT-6 Astra to OpenCode

Inside OpenCode, you need to link it to your OpenAI account:

1. Type / and select “Connect”
2. Choose OpenAI from the list of providers
3. You’ll see three options:
   • ChatGPT Subscription
   • ChatGPT Headless
   • Manually Enter API Key
4. Select “Manually Enter API Key” (unless you have a ChatGPT Plus/Pro subscription)
5. Paste the API key you generated in Step 1
6. Hit Enter

OpenCode will now show you all available OpenAI models — including GPT-6 Astra. You’re connected!

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Step 5 — Install the WP MCP Plugin in WordPress

Now let’s set up your WordPress site to receive commands from OpenCode.

1. Log into your WordPress admin dashboard
2. Go to Plugins → Add Plugin
3. Search for “WP MCP”
4. Click Install Now, then Activate

This plugin is what connects AI agents (like OpenCode, Claude, Cursor, Codex, and others) directly to your WordPress installation via MCP protocol.

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Step 6 — Enable All AI Permissions in WP MCP

After activating the plugin, you’ll see a new MCP menu item in your WordPress sidebar.

1. Click on MCP → Settings
2. You’ll notice most write-access options are disabled by default
3. Click “Toggle All” to enable all write permissions
4. Click “Save Settings”

This gives OpenCode the ability to create pages, add content, and build layouts directly inside WordPress.

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Step 7 — Copy the OpenCode MCP Config

1. Inside your WordPress MCP plugin, click on “Connections”
2. You’ll see a list of supported AI agents — Claude, Cursor, Codex, OpenCode, and more
3. Click on “OpenCode”
4. You’ll see a configuration snippet — click “Copy”

This config file tells OpenCode how to talk to your WordPress site through MCP.

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Step 8 — Add the MCP Config to OpenCode

Now head back to your terminal:

1. Open the OpenCode config file using the terminal command from the OpenCode docs (MCP Servers section)
2. Delete any existing MCP configuration if there is one
3. Paste the config you copied from your WordPress MCP plugin
4. Press Ctrl + X to exit the editor
5. Press Y to save, then hit Enter

Your OpenCode is now configured to connect to your WordPress site.

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Step 9 — Verify the MCP Connection

1. Open OpenCode again by typing opencode in your terminal
2. Type /mcp and hit Enter
3. You should see your WordPress MCP server listed as connected ✅

If it shows up — you’re all set. GPT-6 Astra is now connected to your WordPress website.

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Step 10 — Create a 3D Page in WordPress with a Prompt

Here’s the fun part. You can now give OpenCode a natural language prompt and it will automatically generate a 3D page inside WordPress.

For example, type something like:

“Please create a new page with a 3D rocket section on that page. Name that page Astra 3D Test. Use WordPress MCP.”

Hit Enter and watch it work.

OpenCode will generate the code, create the page in WordPress, and give you a URL to preview it — all within seconds.

💡 Pro Tip: The more detailed your prompt, the better the result. If you want animation, say “animated 3D rocket.” If you want specific colors or a hero layout, describe it. GPT-6 Astra responds to detail.

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⚠️ Important Warning About API Costs

A lot of tutorials online claim there’s a “free GPT-6 Astra API key” — that is completely false.

GPT-6 Astra is the most expensive model OpenAI has ever released. People are burning through tokens at a crazy rate just to create those viral 3D animations — and they’re racking up huge API bills.

Here’s how to protect yourself:

• Set a spending limit in your OpenAI account dashboard
• Use a short API key expiration during testing (1 day works fine)
• Be very specific with your prompts — shorter, smarter prompts = fewer tokens burned
• If you have a ChatGPT Plus or Pro subscription, use that instead of API keys for a fixed monthly cost

Play around with it, but play smart.

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Final Thoughts

GPT-6 Astra and OpenCode together are genuinely one of the most exciting combos in the AI space right now. The ability to go from a text prompt to a fully built 3D WordPress page — without writing a single line of code — is something that would’ve seemed impossible just a year ago.

Whether you’re a WordPress developer looking to speed up your workflow or a business owner who wants a standout website, this setup is worth exploring.

👉 Watch the full tutorial video: https://youtu.be/5_GAxQ4fMKI

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Have questions about the setup? Drop them in the comments - we read every one!