AI SEO Copywriter
Publish-ready title, bullets and description, powered by best-in-class, latest LLMs and tuned for Amazon.
Your AI eCommerce agents find what your Amazon listings are missing and fix them for you.
Enter your ASIN. Cosmy reads your listing the way Alexa for Shopping and CoSMo do, then rewrites it so the right shoppers find it and buy.
Paste a 10-character ASIN or an Amazon product link.
Trusted by 7-figure Amazon sellers and agencies
STANLEY Quencher ProTour Flipstraw Tumbler, 30 oz, Rose Quartz
B0DCDZP98B
amazon.com
Example: Alexa for Shopping 71 to 94, CoSMo 72 to 93, Shopper Voice 66 to 87, plus 22 points.
+22 ptsRewritten and re-scoredRe-scoredExample
Ready to publish on amazon.com
STANLEY Quencher ProTour 30 oz Tumbler, Leakproof Flip Straw, Rose Quartz
Already available in 8 Amazon marketplaces
- amazon.com
amazon.co.uk
amazon.de
amazon.fr
amazon.it
amazon.es
amazon.ca
amazon.in
Backed by
An AI now reads your listings.
- BeforeA9, the search engine
- Matches keywords. Decides your organic rank.
- NowAlexa for Shopping (formerly Rufus) and CoSMo
- Read like a shopper. Decide whether to recommend you. CoSMo grades your content across 15 dimensions.
Most listings were written for the first reader only. More keywords won't fix it. It's a structure problem.
STANLEY Quencher ProTour Tumbler, 30 oz
ASIN B0DCDZP98Bamazon.com
A shopper asks 
Real questions from Cosmy’s analysis of a best-selling tumbler listing.
Found by Amazon's AI. Chosen by shoppers.
Cosmy combines the Amazon data generic AI can't see, and can send the result to the tools your team already uses.
Cosmy brings together
- Your Amazon listing
- Alexa for Shopping questions
- CoSMo's 15 dimensions
- Customer reviews
Jungle Scout keywords- Score history
Optimize B0DCDZP98B for Amazon's AI and shopper desirability
- 12 shopper questions checked
- 15 CoSMo dimensions scored
- Customer reviews analyzed
Publish-ready copy
And can send it to
Claude
ChatGPT
Gemini
Make
n8n- Seller Central
AI discoverability
Answers what Alexa for Shopping asks. Scores high on CoSMo. Gets recommended.
Shopper desirability
Speaks your buyers' language, straight from their reviews. Gets chosen.
From ASIN to publish-ready in minutes.
Finished copy. Not a brief.
Written inside your brand rules, from what shoppers actually ask.
Your listing today
STANLEY Quencher ProTour Flipstraw Tumbler, 30 oz, Rose Quartz
- Ice-Cold Refreshment, All Day: Thanks to double-wall vacuum insulation, your drinks stay ice cold for hours. Whether you're at the gym, on a hike, or at your desk, the Quencher ProTour keeps your water refreshingly chilled.
- Leakproof Hydration: The ProTour Flip Straw lid lets you sip without worry. Just flip up the built-in straw for a quick drink, then snap it shut to prevent spills.
- Built to Last, Built for You: Made from 18/8 recycled stainless steel, this BPA-free tumbler is as durable as it is sustainable. It's dishwasher-safe, meaning no hassle when it's time to clean.
What Amazon's AI flagged
“How long does ice stay frozen?”
“For hours” doesn’t answer it
“Who is it for?”
No audience named (CoSMo: 2/5)
“What sizes does this come in?”
Other sizes never mentioned
Cosmy's rewrite
STANLEY Quencher ProTour 30 oz Tumbler, Leakproof Flip Straw, Rose Quartz
- ICE STAYS FROZEN 24+ HOURS: Double-wall vacuum insulation keeps drinks ice cold through a full workday, a gym session and the drive home
- MADE FOR COMMUTERS, ATHLETES AND STUDENTS: The leakproof ProTour flip straw snaps shut for your bag; the narrow base fits most car cup holders
- ONE DESIGN, FIVE SIZES: Also in 14, 20, 40 and 64 oz; the straw and lid come apart for the top rack of the dishwasher
Today’s copy and flags from Cosmy’s analysis of this listing. The rewrite is an example.
Three scores. Deep eCommerce data layers. One rewrite.
Alexa for Shopping analysis
Every question shoppers ask, checked against your page.
- What sizes are available?Partial or wrong
- Compare 30 oz vs 40 ozPartial or wrong
- Which size is most popular?Review-based
- Is it leakproof when closed?Complete
- Can it fit in standard cup holders?Partial or wrong
CoSMo, 15 dimensions
See exactly which dimensions hold your rank back.
Complementary Products 1/5. No accessories or pairings (straw brushes, carry bags, spare lids).
Shopper Voice
The words your buyers use, fed straight into the copy.
- “keeps ice forever”
- “fits in my car cupholder”
- “doesn't leak”
From real reviews of this tumbler.
Jungle Scout keywords
Up to 10 high-volume keywords matched to your product. Accept them, or bring your own.
- insulated tumbler74,300
- tumbler with straw61,200
- tumbler with handle52,700
- 30 oz tumbler40,500
- leakproof tumbler8,900
Monthly searches on amazon.com. Example volumes.
Track every score over time.
Cosmy re-scores your listings twice a month and keeps the history, so you see the work land, and can show it to your team or clients.
Product score, re-scored every 2 weeks
+22 ptsExample data.
Set your brand rules once. Every rewrite follows them.
Claims to avoid, wording to keep, formats to follow. Set them for the whole workspace, a category, or one product.
Brand rules
-
Workspace · All brands
Never use the word “best”. Always write in American English.
-
Category · Drinkware
Mention BPA-free and the materials in bullet 2.
-
Product · Quencher ProTour 30 oz
Always say “18/8 recycled stainless steel”.
Rewrite, bullet 2
Follows all 3 rules
BUILT TO LAST, BPA-FREE: Made from 18/8 recycled stainless steel, with a textured grip and a narrow base for car cup holders.
Example rules.
For agencies
Every client. Every ASIN. Same standard. Each client's rules set once, and score history as the proof of work your clients see.
For brand teams
Minutes instead of weeks. No brief, no back-and-forth. A clear view of what Amazon's AI wants, and a score to track it.
Keyword toolsResults speak for themselves.
Minutes
from ASIN to publish-ready copy
up to+10%
revenue impact, and 90% of users saw a measurable lift*
1 to 3 h
saved per week on listing work
1,000+
listing analyses run on Cosmy
*Survey of Cosmy's beta cohort.
The teams already ahead of Amazon's AI.
Unedited words from the brands, agencies and consultants already using Cosmy.
“A repeatable system for AI-era optimization. Every client, every ASIN, same quality. That's what scales an agency.”
ThomasFounder @ Caike“Cosmy has transformed what used to be a lengthy process into a matter of minutes. It has revealed content gaps we hadn't noticed for months.”
ClémentineAmazon Manager @ Withings“We significantly improved the quality and visibility of our Amazon listings, which led to a strong increase in sales.”
ValentinAmazon Specialist @ Vosker“Within minutes, I have clear recommendations to bring my clients' product pages in line with Amazon's latest AI standards.”
MathildeAmazon Consultant“Its listing analysis helps take optimization much further, with relevant and actionable suggestions.”
TimotéFounder @ Wilift
Start free. Pay as your catalog grows.
Every plan covers 8 Amazon marketplaces. Prices in USD, incl. VAT.
Free
Try it on your own listings.
For testing Cosmy on a few products.
$0/ month
No credit card needed.
Up to 2 listings rewritten / month
or track up to 2 products
Includes:
- Publish-ready rewrites
- Alexa for Shopping, CoSMo and Shopper Voice analysis
- Jungle Scout keyword suggestions
- Brand rules set once
- 8 Amazon marketplaces
5 credits / month
Starter
Fix your best sellers.
For one brand with a focused catalog.
$49$49/ month
Billed monthly
Up to 15 listings rewritten / month
or track up to 15 products
Includes:
- Publish-ready rewrites: title, item highlights, 5 bullets, description
- Full gap analysis: Alexa for Shopping, CoSMo and Shopper Voice
- Shopper Voice: what your reviews say, built into the copy
- Jungle Scout keyword suggestions
- Brand rules set once: workspace, category, product
- Amazon AI data export (.csv) and rewrite controls
30 credits / month
Pro
Run your whole catalog.
For growing brands and small agencies.
$129$129/ month
Billed monthly
Up to 45 listings rewritten / month
or track up to 45 products
Everything in Starter, plus:
- 3x the volume of Starter
- Shareable audit reports for clients and teams
90 credits / month
Scale
Portfolio volume, zero friction.
For agencies and multi-brand teams.
$299$299/ month
Billed monthly
Up to 125 listings rewritten / month
or track up to 125 products
Everything in Pro, plus:
- The lowest price per listing
- Dedicated support and an onboarding call
- CSV export for Seller Central bulk workflows (soon)
250 credits / month
More than 250 ASINs? Let's tailor a plan.No seat fees. No lock-in. Start with 10 ASINs, scale to the whole catalog. How credits work: 1 credit runs an analysis, 2 credits rewrite a full listing (analysis + copy) or track a product for a month (re-scored twice).
Questions, answered.
Still unsure? Book a demo.
What does Cosmy do?
Cosmy reads your Amazon listing the way Alexa for Shopping (formerly Rufus) and CoSMo do. It gives you three scores (Alexa for Shopping, CoSMo and Shopper Voice), shows exactly what's missing and why, then rewrites your title, item highlights, bullets and description, ready to publish. It takes minutes.
What are Alexa for Shopping and CoSMo?
Alexa for Shopping is Amazon's AI shopping assistant, formerly called Rufus. Shoppers ask it questions, and it answers from your listing and decides which products to recommend. CoSMo is Amazon's content quality model. It checks how completely your listing covers what shoppers care about, across 15 dimensions. Cosmy scores your listing on both.
What is Shopper Voice?
Cosmy reads up to 500 of your product's reviews, finds the themes buyers keep raising, and checks whether your listing says them too. Those themes feed straight into the rewrite, so your copy uses the words your buyers already use.
Amazon says my listing is complete. Why does my score say otherwise?
Amazon's checklist tells you the page is filled in. Cosmy tells you whether Amazon's AI can understand it and answer shoppers' questions from it. Complete is not the same as understood.
How is this different from asking ChatGPT or Claude?
They write well, but they can't see the questions shoppers ask Alexa for Shopping, how CoSMo reads your page or what your reviews say. Cosmy uses best-in-class, latest LLMs and adds that Amazon data, plus Jungle Scout keywords, so every rewrite fixes a real gap.
Do I need to connect Seller Central?
No. Paste any ASIN or Amazon product URL. Cosmy pulls the public listing, reviews and shopper questions itself, and keyword search volumes come from Jungle Scout. You copy the finished listing into Seller Central when you're ready.
Can Cosmy keep my brand's voice?
Yes. Set your brand rules once (claims to avoid, wording to keep, formats to follow) for your whole workspace, a category or a single product. Every rewrite follows them. Brand rules are included on every plan.
How do I know the rewrite worked?
Cosmy re-scores your tracked listings twice a month and keeps the history, so you can see your scores move after you publish, and show the proof to your team or clients.
Can I use Cosmy inside my AI assistant?
Yes. Connect Cosmy to Claude or another assistant that supports MCP, and ask about your products, scores and gaps in plain language. A free Cosmy account is enough.
Which Amazon marketplaces does Cosmy support?
Canada, France, Germany, India, Italy, Spain, the UK and the US.
Can I start for free?
Yes. The Free plan needs no credit card and includes everything: Alexa for Shopping, CoSMo and Shopper Voice scores, Jungle Scout keywords, brand rules and publish-ready rewrites, with 5 credits a month. Upgrade when your catalog grows.
How do credits work?
Every plan comes with monthly credits. One credit runs a one-off analysis of a listing. Two credits give you a full rewrite: the analysis plus the publish-ready copy. Tracking a product costs two credits a month, because Cosmy re-scores it twice a month and keeps the history.
Do you work with agencies and large catalogs?
Yes. For more than 250 ASINs we tailor a plan to your catalog. Agencies can also use Cosmy as a white label: tailored AI agents, your own logo and brand, your copywriting guidelines in every rewrite, several users and early access to beta features. Book a demo to set it up.
Does Cosmy store or share my listing data?
Your listing data is only used to run your analysis and generate your content. It is never shared with third parties or used to train models outside your own workflow.