SPRING 2026 early access · closed beta

The control tower your smallmulti-channel store has been missing.

Capstan watches your storefronts, your spend channels, and your refund rate in one continuous loop — and acts on them automatically, before the morning standup. Not a dashboard. Not a Zapier chain. A 24/7 agent for the operator at the center.

No credit card
Free during closed beta

A representative panel · your data is private to your tenant and shipped daily.

Watching this cycle Shopify storefront ·2 stores Amazon Seller Central ·3 marketplaces Meta Ads ·7 ad accounts

01 · Signals

Capstan reads every signal a multi-channel merchant actually owns.

Existing tools silo into Amazon-only PPC, Shopify-only inventory, or returns-only dashboards. Capstan puts every channel into one pane, and treats each signal as a thing the agent is responsible for — not a chart you have to check.

signal/ads
Ad spend pacing & ROAS drift
Daily and hourly ad spend, ACoS, and ROAS — flagged the moment a campaign drifts outside the band you set, not on Monday when you open the dashboard.

Reads spend + revenue hourly across Meta Ads and Amazon Sponsored Products.

signal/stock
Stockouts & reorder thresholds
Days-of-cover for every SKU across Shopify and Amazon FBA, with a reorder line that already accounts for the supplier you currently use.

Reads inventory snapshots and the SKU → supplier map you upload once.

signal/returns
Refund-rate spikes
Returns and refund-rate by ASIN and SKU, sized in dollars not percentages — caught the day they spike instead of the day your CFO asks why.

Reads order + return events as they post.

signal/suppliers
Supplier lead-time delay flags
Lead-time drift from your historical baseline, with the supplier and PO attached — so you know who to chase before the order is already late.

Reads PO receipts + supplier confirmations.

02 · The loop

Watch. Decide. Act. Report. — every minute, every day.

The agent runs an always-on cycle on your behalf. You see the report before you sit down with your team; the rest happens whether or not you do.

  1. 01

    Watch

    Capstan reads every storefront, every spend channel, and every refund rate on a continuous loop. No Zapier chain, no spreadsheet, no manual refresh.

    New signal? Routed in under 60 seconds.

  2. 02

    Decide

    Anomaly goes into a small judge model that knows your band. Normal drift? Filed for the daily digest. Real problem? Escalated.

    12-second median decision latency.

  3. 03

    Act

    Capstan can pause an underperforming campaign, raise a restock PO against a known supplier, or fire a customer email — within the guardrails you set.

    Every action is reversible from the digest, forever.

  4. 04

    Report

    You get one P&L-flavored email before the morning standup: what changed, what acted, what to confirm. Open it, sign off, or push back.

    Email digest lands by 7:00 local, every day.

03 · Pricing

Priced where the rest of the SaaS you already own is priced.

All-in, billed monthly. No per-call fees, no marketplace, no surprise overage on the side that's already yours to run.

plan / launch

Launch
$79/ month
1 storefront · 1 channel · 250 monitored SKUs
  • Single-channel signal coverage
  • Daily P&L digest before 7:00 local
  • Daily-supplier lead-time flagging
  • Email-only actions
Pick Launch
Most operators pick this

plan / track

Track
$199/ month
Up to 3 storefronts · 2 spend channels · unlimited SKUs
  • Everything in Launch
  • Multi-storefront cross-channel signal
  • Automatic restock PO raises against known suppliers
  • Refund-rate spike routing by ASIN
Pick Track

plan / tower

Tower
$399/ month
Unlimited storefronts · every spend channel · team of 10
  • Everything in Track
  • Campaign auto-pause within your guardrails
  • Custom guardrails per channel and per SKU
  • Team roll-up digest + low-volume on-call alerts
Pick Tower

Need more than three marketplaces or a custom ledger integration? Mailcapstan-2@polsia.app.

04 · Get on the tower

We're onboarding one merchant per week for the next quarter.

Drop us a line with the storefronts and channels you actually run on, and a note on the most expensive thing that broke last month. We'll come back with a week of free setup if there's a fit.

Mail us
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