Stop bleeding cash on
bad SKU bets.

KairosSell is your AI operation agent for cross-border. Validates products, models 14-layer landed margins, watches competitors 24/7, and unifies your data across Amazon, Temu, and TikTok Shop — for $79/month instead of $5,000.

$1.4M
losses prevented · beta
<30s
to a ship/kill verdict
14
margin layers modeled
24/7
competitor watch
All-in-1
data · Sellersprite + Helium 10
Native
Amazon SC + TikTok Shop connect
200+ sellers in beta Built for Amazon · TikTok · Temu 30-day money back
Live: Mei in HK just killed an SKU at 14% margin — saved an estimated $11,400 in PPC + inventory.
The cost of guessing

One bad SKU eats a quarter of profit.

If any of these sound like last month — Kairos pays for itself the day you install it.

– $14,200
You greenlight a SKU. It lands at 12% margin. You needed 25%. The 2,000 units are already in FBA.
– $6,800
Your top competitor drops price 18%. You find out 4 days later. Your BSR is gone.
– $9,500
TikTok creative tanks at 23% completion. You burn 2 weeks and ad spend before realizing.
– €4,200
EU GPSR catches you at customs. Shipment seized. You missed a single doc.
What Kairos does for you

Checks. Monitors. Recommends. Acts.

Always on. Always watching your account. Tells you exactly what to fix — and fixes it on your approval.

CHECK
Your account, daily.
Scans listings, BSR, ad spend, inventory, ROAS. Flags anomalies before they cost you a week.
MONITOR
Competitors, 24/7.
Price drops, BSR spikes, new variants, ad creative shifts. You hear it the moment it happens.
RECOMMEND
Next moves, ranked.
"Cut bid on ASIN X by 18%." "Restock B by Apr 14 or stockout." Plain English. Prioritized by $ impact.
ACT
One-click execution.
Approve and Kairos updates ads, drafts supplier emails, files compliance forms. You stay in control.
Built by the operators

Trained by Amazon, TikTok & Temu account managers.

Combined and exclusive knowledge and insights from official account managers across Amazon, TikTok & Temu. Kairos tells you what to do, why it matters, how to execute — then connects to your seller portals and does it for you.

amazon
Seller Central · SP-API
TikTok Shop
Partner API · Open Platform
Temu
Open Platform · Listing API
KNOWLEDGE
What & why, in plain English
"Your ACOS is 38% on ASIN B07X — Amazon's account-manager benchmark for beauty is 22%. Here's why and how to fix it."
ADVICE
Granular, ranked next moves
"Cut bid on keyword X by 18%. Pause campaign Y. Restock SKU Z by April 14 — or you'll stock out for 11 days."
EXECUTION ▸ ON YOUR APPROVAL
Connects & runs your store
Updates Amazon ad bids, drafts TikTok Shop creative briefs, files Temu listing changes, sends supplier POs — all from chat, with one-click approval.
Operates at granular level: bid changes per keyword · listing edits per ASIN · price tests per variant · creative briefs per video — you stay in control, Kairos does the work.
The shift

Your week, rewritten.

Without Kairos
  • Sunday burning hours on margin spreadsheets
  • Find competitor price drops 4 days too late
  • Greenlight 1 in 4 SKUs that lose money
  • Miss EU/JP compliance until customs catches it
  • Hire $5K/mo ops PM (or burn out doing it yourself)
With Kairos
  • 30-second SKU verdict — full 14-layer margin model
  • Push notification the second a rival blinks
  • Kill the losers before you ship a single unit
  • Compliance radar flags GPSR/CBAM/PSE before customs does
  • $79/month. Cancel anytime. Keep the decisions you made.
What's in the box

Six pro tools. One chat.

No dashboards to wire up. No 12-tab spreadsheets. Just ask.

Product Discovery

Validate a SKU in under 30 seconds. Sellersprite + FastMoss data, demand-vs-saturation scoring, and a "ship / kill / refine" verdict.

14-Layer Margin Engine

Real landed margin: 头程, 尾程, tariff, MPF/HMF, FBA, referral, PPC, returns, FX. Stress-tested for 2026 Section 301 + de minimis end.

Competitor Intel

Watch 5 listings live: BSR, price, review velocity, ad creative. Get pinged the moment a rival blinks.

TikTok Push-Flow

2026 6-layer pyramid logic. 70% completion gate, GPM thresholds, creator briefs that pass review the first time.

Compliance Radar

EU GPSR, CBAM, JP PSE, US CPSC. Catches regulatory landmines before you commit a 2,000-unit FBA shipment.

Team Mode

Invite your sourcer, your video editor, your VA. Shared projects, role permissions, and a single source of truth.

Sellers using Kairos

Paid for itself — and worth every cent.

Real outcomes from beta sellers in HK, Shenzhen, and Yiwu.

★★★★★
Killed 3 losing SKUs in week one. Found a $40K winner in week two. Paid for itself by Tuesday.
LW
Leo W.
Shenzhen · $2.1M/yr Amazon FBA
★★★★★
I used to spend every Sunday on margin spreadsheets. Now I just ask. My weekends are back, and my margins are sharper.
MC
Mei C.
Hong Kong · TikTok Shop, beauty
★★★★★
Caught a competitor BSR drop at 11pm. Repriced before sleep. Saved my Q4. Genuinely don't know how I shipped without this.
DH
David H.
Yiwu · multi-brand · 8 SKUs

Founding 100: lock $79/mo forever.

Pricing goes to $129/mo when the cohort closes. Founders keep $79 for life — even on annual renewal.

67 / 100 founders33 spots left
See it run

Real validation. Real verdict.

A real chat that saved a seller from a $14K mistake — with the same charts Kairos shows you.

Market saturation
84
/ 100 · CROWDED
0 100
47 active variants · >200 reviews/mo each
Margin waterfall · per unit
12.4%
net · below 25% floor
$39.00 ASP −$6.20 FOB −$3.40 Frt+Tariff −$8.96 FBA+Ref −$10.60 PPC+Ret $4.84 NET
Kairos verdict
KILL
Confidence: 92%
SaturationHigh
Price position$4 above median
Net margin12.4%
Pivot ROITikTok +9pts
Live conversation · LED face mask validation
Live
You
I want to validate an LED face mask. $39 ASP, sourcing Yiwu at $6.20 FOB, US Amazon. Worth pursuing?
Kairos just now

Pulling Sellersprite data + running 14-layer margin model…

sellersprite_keyword
done · 1.2s
led face mask · 47 variants · top BSR #2,847 · avg price $34.99 · review velocity HIGH (top 5 each >200/mo)
margin_calculator
done · 0.4s
ASP $39 → landed $13.40 → platform $9.96 → variable $10.60 → net $4.84 (12.4%)

Verdict: KILL. Three reasons — saturation 84/100, your $39 ASP is $4 above the median, and after FBA + PPC + returns you're at 12.4% net (your floor is 25%). Want me to run alternative SKUs in the same niche, or model a TikTok Shop pivot where saturation drops to 31/100?

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2
3
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Welcome — let's get to know your business

Two minutes of setup so Kairos can give you decisions, not generic advice.

Which channels do you sell on?

Pick all that apply. We'll wire up the right data sources.

Amazon US
Amazon EU
Amazon JP
TikTok Shop
Shopify DTC
Etsy
Temu
Other

What do you need help with most?

We'll route the first conversation to your top priority.

Find next product
Fix my margins
Watch competitors
Crack TikTok push-flow
2026 compliance
Launch new SKU

You're set. Pick your starting tier.

Free Trial gives you 50 messages to test Kairos on real decisions. No card needed.

Free Trial · 50 msgs
Pro · $79/mo
Max · $199/mo
Team · $149/seat
Tip: Most beta users start on Free Trial, run 3–5 product validations, and upgrade to Pro on day 4.
LED face mask validation
LumaSkin Q2 launch
Claude Sonnet 4.6
You 10:24 AM

I'm looking at LED face masks. Selling price $39, sourcing from Yiwu at $6.20 FOB. Targeting US Amazon FBA. MOQ 500 units, payment 30% deposit / 70% before shipping. Worth pursuing? Run the full margin and competitor pass.

Kairos 10:24 AM

Got it. Running this in parallel:

  • Sellersprite keyword + competitor pull on led face mask
  • 14-layer landed margin model with current 2026 tariff schedule
  • EU GPSR + US CPSC compliance flag for LED skincare devices
sellersprite_keyword
done · 1.4s
Query: "led face mask" — US Amazon
Top 10 ASIN avg: price $34.99 · BSR #2,847 · review count 4,128 · review velocity 217/mo
Saturation index: 84/100 HIGH · 47 active variants, 8 with >1K reviews
margin_calculator
done · 0.6s
LayerNotesPer unit (USD)
FOB YiwuSupplier quote6.20
头程 ocean freightYT-LAX, $4,800/40HQ ÷ 4,200 units1.14
US tariff (HTS 8543.70)2026: 25% Sec 301 + 7.5% MFN1.96
MPF + HMF0.3464% + 0.125%0.04
3PL inbound + prepFNSKU, polybag0.55
FBA fulfillment feeStandard size, 14oz5.42
Amazon referral 15%$39 × 15%5.85
PPC (target 20% TACoS)Niche avg ACoS 28%7.80
Returns reserve 6%Beauty cat avg 5–8%2.34
FX + payment processingHKD/USD 1.5%0.59
Storage (avg 60d)Q1 rate0.28
Misc + buffer 2%0.78
Total landed cost 14 layers 32.95
ASP: $39.00
Net profit: $6.05
Net margin: 15.5%
Breakeven ASP: $43.93
compliance_check
done · 0.3s
US (FDA): Class II medical device if marketing claims include "anti-aging" / "wrinkle reduction" — 510(k) clearance required.
EU GPSR: Authorized representative in EU mandatory.
Battery: UN38.3 + MSDS required for ocean freight.

Verdict: ⚠ KILL — or pivot.

  • Margin fails your 25% floor by ~10pts. Even at $44 ASP you'd land at 22%, still below.
  • Saturation index 84/100 means even a perfect launch faces a 6–9 month review-velocity climb to compete with the top 8 listings.
  • FDA 510(k) risk is the real killer — if you make any anti-aging claim (and the category demands it), you're looking at $15K+ and 6 months for clearance.

Two pivots that score better in the same niche:

  • Red-light therapy wand — saturation 41/100, avg ASP $52, FOB $7.80 from Shenzhen, models at 31% net.
  • TikTok Shop instead of Amazon — same product, push-flow demand is real, saturation 31/100, FBA fee replaced with $4.20 fulfillment, models at 24% net at $34.99 ASP.

Want me to run the full validation on either? I can also queue a competitor watch on the top 5 LED mask listings if you want to revisit in 60 days.

You 10:31 AM

Run the red-light wand on TikTok Shop instead. And set up the competitor watch on the top 5 LED mask listings — ping me on price drops >10% or BSR moves into top 1000.

Kairos just now
Spinning up red-light wand validation + watch group…
Kairos can make mistakes. Verify critical decisions — especially tariff codes & compliance.
Pricing

Replace a $5K/mo ops hire — for the cost of lunch.

Start free. Upgrade when Kairos has paid for itself (most users do by day 4).

Free Trial
$0
Test Kairos on real decisions before paying.
  • 50 messages total
  • Margin calculator (basic)
  • Sellersprite preview data
  • 1 active project
  • Community support
Max
$199/mo
For sellers running multiple brands or $500K+ GMV.
  • Unlimited messages
  • Sonnet 4.6 default (no rate limit)
  • Bright Data + custom scrapers
  • 20 competitor watches
  • Auto weekly intelligence reports
  • Priority support · 4h SLA
  • API access (beta)
Team
$149/seat/mo
For 2–10 person ops + sourcing teams.
  • Everything in Max
  • Shared projects & conversations
  • Role-based permissions
  • Audit log + SSO
  • Team usage analytics
  • Dedicated CSM
  • 3-seat minimum
Enterprise

Running a $5M+ GMV operation?

Custom data integrations, on-prem deployment, and a dedicated solutions architect. Starts at $2,000/month.