What is Causabi and what does the name mean?

Causabi is a GEO (Generative Engine Optimization) platform that helps businesses appear in ChatGPT, Perplexity and Gemini answers. The name comes from the Latin word causa — meaning reason, cause. The idea: Causabi gives your business the reason AI search engines mention and recommend you.

What is GEO optimization and how does it differ from SEO?

GEO (Generative Engine Optimization) is the practice of optimizing your website for AI search engines: ChatGPT, Perplexity, Gemini, Yandex GPT. Unlike traditional SEO (Google rankings), GEO affects whether AI cites your business in its answers. 73% of AI queries end without a click — AI gives the answer directly from your content.

How does Causabi improve ChatGPT visibility?

The tool generates FAQ Schema (gives +41% citation rate increase per Perplexity data), fixes robots.txt so GPTBot and ClaudeBot can crawl your site, creates llms.txt — the standard for direct LLM communication, and adds Schema.org markup for entity recognition in AI.

What is llms.txt and why do I need it?

llms.txt is a new standard (Jeremy Howard, fast.ai, 2024) for sites that want to explicitly explain their structure and content to AI agents. The file is placed at the site root and read by ChatGPT Browse, Claude Tools, Perplexity. As of April 2026, adopted by 12,000+ sites including Anthropic, Cloudflare, Vercel.

How much does Causabi cost?

Currently free in Early Access preview. The free plan includes 1 site, AI Readiness Score, llms.txt generation, Schema.org and robots.txt. Pro plan (after preview launch) includes unlimited sites, weekly ChatGPT/Perplexity monitoring and automatic regeneration.

How fast does the site analysis work?

Full AI audit takes 30–90 seconds. The tool scans up to 8 key pages, checks robots.txt, Schema.org markup, FAQ blocks, content depth and brand signals. Result: Score 0–100 with detailed breakdown and specific fix recommendations.

Do you need access to my CMS or server?

No. Just the URL. You download a ZIP of generated files and upload them yourself — or use the hosted AI profile on causabi.com which AI bots already index.

How long until my business appears in ChatGPT after optimization?

Hosted profile on causabi.com is indexed by AI bots in 1–7 days. Files on your own site take 2–4 weeks depending on ChatGPT and Gemini crawl frequency.

How does AI citation monitoring work?

Once a week we run each of your target queries through ChatGPT and Google AI. We check: is your business mentioned, what position, who are the competitors nearby. All in a dashboard with trend.

Is Causabi open source?

Yes, the core (causabi-geo CLI) is on PyPI under MIT license. pip install causabi-geo — run analysis and generate files locally without signing up.

← All guides

COD · Codex (OpenAI) · ~20 min · Medium

Make Your Site Visible in ChatGPT Using OpenAI Codex

OpenAI Codex is a terminal-based AI agent that can read your entire project and make targeted edits. Run it once with the right prompt and it handles all GEO optimization tasks automatically.

Requires: OpenAI Codex CLI

Install: npm install -g @openai/codex. Needs an OpenAI API key with Codex access.

What we'll add:

✅ Organization Schema — AI correctly identifies your business
✅ FAQ Schema — +41% citation rate in AI responses
✅ robots.txt — allow GPTBot, ClaudeBot, PerplexityBot
✅ llms.txt — AI agents understand your site instantly

Generate your GEO assets first

Go to causabi.com
Enter your site URL and run the audit
Download the ZIP — it contains Schema.org, FAQ Schema, llms.txt, and robots.txt
Save them to your project root as reference files (e.g., geo-assets/)

Run Codex with a GEO optimization prompt

Open your terminal in the project root and run:

Terminal

codex

Then paste this task description:

Codex Task Prompt

I need to add GEO optimization (structured data for AI search) to this project. Please do the following: 1. Add JSON-LD Organization Schema to the <head> of every page. The schema JSON is in geo-assets/schema.json. 2. Add JSON-LD FAQ Schema to the homepage <head> only. The FAQ schema is in geo-assets/faq.json. 3. Create or update public/robots.txt with the content from geo-assets/robots.txt. 4. Create public/llms.txt with the content from geo-assets/llms.txt. For Next.js App Router: add scripts to app/layout.tsx using next/script or direct script tags in metadata. For Vite/React: add to index.html <head>. For static HTML: add directly to each HTML file's <head>. Make sure all files are in the right location for the framework this project uses.

What Codex does

Codex will read your project structure, identify the framework, and make the exact file edits needed. It runs in a sandbox and shows you every change before applying.

Review and apply changes

Codex will show a diff of all proposed changes
Verify that Schema scripts appear in the right layout file
Check that public/robots.txt and public/llms.txt were created
Accept the changes

Deploy and verify

Deploy your changes
Check your-site.com/robots.txt and your-site.com/llms.txt
Go to causabi.com → run a new audit — score should reach 70+
Validate Schema: validator.schema.org

Generate your GEO files for free

Causabi creates Schema.org, FAQ Schema, llms.txt, and robots.txt tailored to your specific site — ready for Codex to apply.

Generate GEO assets →

Claude Code →Cursor →v0 →