# Copix

> Copix is a copywriting assistant for the AI you already use, connected as an MCP server (https://copix.si/mcp) that Claude, ChatGPT, Cursor and Claude Code call while they write: `write` hands the AI the method for an ad, page, email, post, story or offer, `review` checks the draft in one pass (voice, claims, persuasion, offer, structure and format), and `brief` keeps the user's offer, buyer, voice and proof between chats. Copix Complete adds four engines that run on credits: the SEO Engine, GEO Engine, Conversion Engine, and Ads Engine. The AI writes; Copix hands it the method, checks the draft and tells the user in one line (`copix_says`) what he found. Monthly or yearly subscription, 14 days free on the first plan, cancel any time.

The free tools are deterministic and never write the final copy. The engines never invent search volumes or scores: the SEO Engine measures volume from Google Ads data, and says so when Google has none, and labels AI search volume as an estimate; the GEO Engine checks AI citations by asking ChatGPT, Claude, Gemini and Perplexity themselves.

## Start here

- [Copix home](https://copix.si/): what Copix is, the engines, a before-and-after run and the two plans
- [MCP server for copywriting](https://copix.si/blog/mcp-server-for-copywriting): how to connect Copix to Claude, ChatGPT and Cursor
- [Current prices (JSON)](https://copix.si/pricing.json): monthly and yearly plan prices and credit packs
- [How credits work](https://copix.si/credits): what each paid action costs

## Plans

- Copix Basic: The method for every ad, page, email and post, one review pass on every draft, and a saved brief so your AI writes from your facts, inside the AI you already use. Tools: write, review, brief, account.
- Copix Complete: Everything in Basic, plus four engines that measure live pages, AI answers and ads, with 1,500 credits every month. The SEO Engine audits a page for Google and measures search volume, the GEO Engine asks ChatGPT, Claude, Gemini and Perplexity who they cite, the Conversion Engine finds what loses the sale against winning pages, and the Ads Engine compares a Meta ad with winning ads in its niche. Tools: write, review, brief, account, seo, geo, page_review, ad_review.

## What it does (both plans)

- write (Writes): Your AI gets the method for the piece before it writes: the structure, the hooks, the order of the argument and the limits of the platform.
- review (Reviews): Every draft gets one pass before you see it. Each check passes or names the exact line to fix.
- brief (Remembers): Save your offer, your buyer, your voice and your proof once. Every chat starts from your business, not from blanks.

## The engines (Complete)

- SEO Engine: Copix's own SEO tool. It audits a whole live page: the on-page rules, the schema, how ready it is to be cited in AI answers, and whether AI crawlers can read it.
- GEO Engine: Asks ChatGPT, Claude, Gemini and Perplexity what your buyers ask, with web search on, and shows whether they cite your site, and who they cite instead.
- Conversion Engine: Reads a live page section by section and finds what loses the sale, then places it against the 521 winning pages Copix is trained on: pages behind winning Meta ads and Google top 3 results.
- Ads Engine: Compares a Meta ad, words and creative, with the 700 winning Meta ads Copix is trained on, in its niche.

## Paid actions (Complete, in credits)

- ideas (25 credits): Find keyword ideas with search volume (up to 100)
- plan (30 credits): Turn keyword research into a ranked content plan
- competitor (10 credits): See the keywords a competitor ranks for (up to 100)
- backlinks (10 credits): See the links pointing to a site or page (up to 50)
- queries (2 credits): Choose and rank target queries (up to 12)
- volume (50 credits): Measure monthly Google and AI search volume (up to 100 queries)
- check_draft (2 credits): Check a draft against its query
- page (3 credits): Audit a live page and its AI-citation readiness
- crawl_25 (10 credits): Crawl a site, up to 25 pages
- crawl_100 (30 credits): Crawl a site, up to 100 pages
- geo_check (60 credits): Ask ChatGPT, Claude, Gemini and Perplexity a query and see who they cite
- geo_mentions (75 credits): Find the AI answers that already cite a domain (up to 50)
- page_review (4 credits): Review a live page for what loses the sale, against winning pages
- compare (6 credits): Compare your page with a competitor's, section by section
- ad_review (3 credits): Review a Meta ad against the winning ads in its category

## Blog

- [Website SEO Checker: What a Good Audit Finds and Fixes](https://copix.si/blog/website-seo-checker): What a website SEO checker should test, which free tools cover each part, and how to turn an SEO audit into a short list of fixes in the right order.
- [Website Copywriting: How to Write Each Page of Your Site](https://copix.si/blog/website-copywriting): Website copywriting page by page: what the homepage, product, pricing, about and contact pages each need to say, with a homepage copy outline you can fill in.
- [Video Sales Letter: The VSL Script Structure, Beat by Beat](https://copix.si/blog/video-sales-letter): What a video sales letter is, the six-beat VSL script structure, how long it should run, and a fill-in outline you can record this week without a studio.
- [Unique Value Proposition: How to Write One, With Examples](https://copix.si/blog/unique-value-proposition): What a unique value proposition is, a fill-in formula, before and after examples, and the four tests that tell you whether yours is clear enough to keep.
- [SEO Title Tag: Length, Examples and How to Write One](https://copix.si/blog/title-tag): What a title tag is, how long an SEO title should be, why Google rewrites some titles, and title tag examples for blog posts, product pages and home pages.
- [SEO Copywriting: Write Pages That Rank and Still Sell](https://copix.si/blog/seo-copywriting): SEO copywriting is writing that matches what people search and moves them to act. Here's how to write SEO content step by step, with tips and a checklist.
- [Search Intent: What It Is and How to Match It in a Post](https://copix.si/blog/search-intent): What search intent is, the four types with examples, how to read it from the results page in two minutes, and how to fix a page that targets the wrong one.
- [Long Tail Keywords: How to Find Them and When to Use Them](https://copix.si/blog/long-tail-keywords): What long tail keywords are, why a young site should start with them, how to find them for free and when a low-volume query is still worth a whole post.
- [llms.txt: What It Is, Who Reads It and How to Write One](https://copix.si/blog/llms-txt): What llms.txt is, what goes in the file, who actually reads it in 2026, and how to write one in 20 minutes without expecting it to lift your rankings.
- [Keyword Search Volume: How to Find It and What It Means](https://copix.si/blog/keyword-search-volume): How to find the search volume of a keyword for free or with a checker, what the monthly number really measures, and how to use it to pick which post to write.
- [Keyword Generator: Free Ways to Get Keyword Ideas](https://copix.si/blog/keyword-generator): What a keyword generator does, the free keyword generators that work, why AI keyword ideas need real volume, and how to turn a seed topic into a list of posts.
- [Keyword Difficulty vs Competition: What Each Score Means](https://copix.si/blog/keyword-difficulty): Keyword difficulty and keyword competition measure different things. What each score means, why tools disagree, and how to find low competition keywords.
- [Brand Voice: How to Define It and Get Your AI to Use It](https://copix.si/blog/brand-voice): What brand voice is, tone of voice examples side by side, a one-page brand voice guideline you can write today, and how to make your AI follow it every time.
- [AI SEO Tools: Which Kind You Need for Each SEO Job](https://copix.si/blog/ai-seo-tools): AI SEO tools sorted by the job they do: research, writing, content scoring, audits and AI visibility. What each kind is good at, and where it falls short.
- [AI Copywriting Tool: What to Look For Before You Pay](https://copix.si/blog/ai-copywriting-tool): How to choose an AI copywriting tool or AI copywriter: the three kinds, what each is good at, and the checks that decide whether the copy sounds like you.
- [AI Tool to Review Copy: Check Every Draft Before It Ships](https://copix.si/blog/ai-tool-to-review-copy): An AI tool to review copy should flag the exact line to fix: claims without proof, AI tells, weak structure and competing CTAs. Here's how Copix does it.
- [AI Landing Page Review: Find What Loses the Sale](https://copix.si/blog/ai-landing-page-review): An AI landing page review that maps every section, flags risky claims and scores the page against winning pages, so you know what to fix first.
- [How to Write a Call to Action People Click](https://copix.si/blog/how-to-write-a-call-to-action): How to write a call to action: name the result of the click, start with a verb, answer the last doubt next to the button and keep one CTA per page.
- [How to Write Cold Emails With AI That Get Replies](https://copix.si/blog/how-to-write-cold-emails-with-ai): How to write cold emails with AI: give it real research, keep each email to one ask under 120 words, cut the AI tells and review every draft before it sends.
- [Internal Linking for SEO: Where, How Many and Why](https://copix.si/blog/internal-linking-for-seo): Internal linking for SEO in practice: why links between your pages matter, how many to add, how to write anchor text and how to find orphans and broken links.
- [How to Write Email Subject Lines People Open](https://copix.si/blog/how-to-write-email-subject-lines): Email subject lines that get opened: how to stay under 50 characters, name one specific thing, pair each with preview text and score drafts before sending.
- [How to Write a Meta Description and Meta Title](https://copix.si/blog/how-to-write-a-meta-description): How to write a meta description and meta title: answer the search first, keep titles to 60 characters and descriptions 110 to 160, and why Google rewrites them.
- [AIDA Copywriting: The Four Steps, With Examples](https://copix.si/blog/aida-copywriting): AIDA copywriting step by step: what Attention, Interest, Desire and Action each do, a worked example, where AIDA fits and when another framework works better.
- [Keyword Cannibalization: How to Find It and Fix It](https://copix.si/blog/keyword-cannibalization): Keyword cannibalization explained: when two of your pages compete for one query, how to confirm it in your data, which fix to use and when to leave it alone.
- [How to Write Product Descriptions That Sell](https://copix.si/blog/how-to-write-product-descriptions): How to write product descriptions buyers read: answer the buyer's question first, turn features into outcomes, add proof and specs, and skip generic copy.
- [How to Write Headlines: Formulas and a 7-Point Test](https://copix.si/blog/how-to-write-headlines): How to write headlines that get read: what a headline has to do, formulas that work, length limits by format, and a quick test to pick the best of ten drafts.
- [How to Update Old Blog Posts Without Losing Rankings](https://copix.si/blog/how-to-update-old-blog-posts): How to update old blog posts: which posts to pick first, what to change and what to leave alone, when to merge or delete, and how to check the result.
- [Handling Objections in Copy: Find, Rank and Answer Them](https://copix.si/blog/handling-objections-in-copy): Handling objections in copy: where to find the doubts that stop a sale, how to rank them, where each answer goes on the page and how to answer without hype.
- [Claude for Copywriting: A Setup That Writes Like You](https://copix.si/blog/claude-for-copywriting): Claude for copywriting, set up to write like you: a reusable brief, a project with your voice and facts, a framework per asset and a check before you ship.
- [Storytelling in Marketing: 4 Beats and 10 Structures](https://copix.si/blog/storytelling-in-marketing): Storytelling in marketing, explained: the four beats every short story needs, ten structures by asset and goal, and how to tell stories without inventing them.
- [MCP Server for Copywriting: Connect Copix to Your AI](https://copix.si/blog/mcp-server-for-copywriting): Copix is an MCP server for copywriting. How to connect it to Claude Code, Cursor, VS Code, Claude.ai and ChatGPT, with the exact command and config for each.
- [Make AI Writing Sound Human: The Tells and the Fixes](https://copix.si/blog/make-ai-writing-sound-human): Make AI writing sound human by fixing the tells readers spot: dramatic dashes, flip sentences, throat-clearing openers, signature words and even rhythm.
- [Is AI Content Bad for SEO? What Gets Pages Demoted](https://copix.si/blog/is-ai-content-bad-for-seo): Is AI content bad for SEO? Google ranks pages on usefulness, not authorship. What gets AI-written pages demoted, and a five-step check before you publish.
- [How to Write Hooks: 12 Hook Formulas and a Rubric](https://copix.si/blog/how-to-write-hooks): How to write hooks that stop the scroll: 12 hook families with formulas, the trap in each, and a 7-point rubric to score a first line before you post it.
- [How to Write a Sales Page: Structure by Awareness](https://copix.si/blog/how-to-write-a-sales-page): How to write a sales page: match the structure to how aware your reader is, put proof next to each claim, write one clear offer and ask for one action.
- [How to Edit AI Drafts: A Six-Pass Editing Method](https://copix.si/blog/how-to-edit-ai-drafts): How to edit AI drafts in six passes: cut the warm-up, check every fact, add what only you know, remove AI tells, fix the rhythm and read it aloud.
- [Keyword Research: Free Tools and How to Choose Keywords](https://copix.si/blog/how-to-choose-target-keywords): How to do keyword research for SEO: the free keyword research tools worth using, what each can't tell you, and how to pick one target keyword per post.
- [Generative Engine Optimization (GEO): Get Cited by AI](https://copix.si/blog/generative-engine-optimization): Generative engine optimization (GEO) explained: GEO vs SEO and AEO, how ChatGPT, Perplexity and AI Overviews pick sources, and what you control on a page.
- [FAQ Section SEO: How to Pick and Write the Questions](https://copix.si/blog/faq-section-seo): FAQ section SEO in practice: which questions belong in a post's FAQ, how to write answers that stand alone, what changed with rich results, and when to skip it.
- [Copywriting Examples: 11 Frameworks and Formulas to Use](https://copix.si/blog/copywriting-frameworks): Copywriting examples for 11 frameworks and formulas (PAS, AIDA, BAB, 4Ps, FAB and more), with when to use each by the reader's awareness and the asset.
- [On-Page SEO Checklist for Blog Posts: Our Template](https://copix.si/blog/blog-post-structure-for-seo): On-page SEO for blog posts: what it covers, and our checklist for the title, meta description, direct answer, subheads, table, FAQ, links and schema.
- [Before After Bridge Copywriting: BAB With Examples](https://copix.si/blog/before-after-bridge-copywriting): Before After Bridge copywriting explained: what goes in each beat, when BAB beats PAS, worked examples for an ad and an email, and the after-state trap.
- [Ad Copy With AI: Facebook Ad Copy Examples and Limits](https://copix.si/blog/ad-copy-with-ai): How to write ad copy with AI: what good ad copy does, the brief, Facebook ad copy examples by framework, Meta's field limits and the checks before it runs.

## Optional

- [Terms](https://copix.si/terms)
- [Privacy](https://copix.si/privacy)
- [Refunds](https://copix.si/refunds): no refunds on plans: the first plan starts with a 14-day free trial instead, cancel any time; credit packs only while unused, within 14 days
- [Sitemap](https://copix.si/sitemap.xml)
- [Everything above plus every blog post in full](https://copix.si/llms-full.txt)