Cost Analysis

The average multi-channel operator spends $62,400/yearon tools that don’t talk to each other.

Most of them don’t know it. Add yours up below — then see what SENTINEL replaces and what it actually costs.

The costs that aren’t on any invoice

These are harder to see — and they’re typically the largest number on this page.

10 hrs → $2,167/mo
0 hrs40 hrs
$→ $1,250/mo
$

Industry average: 1–3% of Amazon revenue. SENTINEL files these automatically.

$6,601/mo
6 tools selected

Data Access Transparency

SENTINEL replaces the apps.
You still pay for the data.

Some of the tools above are UIs wrapping marketplace APIs you’re already entitled to. SENTINEL connects directly — so you pay for data access, not someone else’s dashboard.

Included at no extra cost
  • Amazon SP-API (free, seller-entitled)
  • Walmart Marketplace API (free)
  • Shopify Admin API (free on your plan)
  • Home Depot DSV portal (free)
  • Lowe's supplier portal (free)
  • eBay Trading API (free)
  • BigCommerce API (free on your plan)
Optional — direct to source
  • Keepa API~$19/mo direct
  • Rainforest API~$50/mo typical
  • Google TrendsFree (PyTrends)
  • FRED economic dataFree
  • SerpAPI / Oxylabs~$50–100/mo
  • OpenAI / Anthropic / Gemini~$20–100/mo

Total optional APIs: ~$150–300/mo at most, paid directly to the source.

Markups you stop paying
  • Feedvisor ~$1,200/mo
    SP-API data + a repricing algorithm. You pay for the wrapper.
  • GETIDA 25% commission
    SENTINEL files reimbursements directly. You keep every dollar recovered.
  • Inventory Planner $299/mo
    Forecasting math on top of SP-API inventory data you already own.
  • Perpetua $550/mo
    Sponsored Products API orchestration. The API is free. The UI is the bill.

“We’d rather you pay Amazon and Google directly for the data than pay a SaaS markup to repackage it. SENTINEL does the intelligence layer — we don’t need to mark up the pipes.”

Total Cost of Ownership

Three scenarios, side by side.

Cost Category
Today (Typical)
SENTINEL Command
+ Direct APIs
Platform / software
~$2,400/mo
$3,499/mo
$3,499/mo
API / data costs
Hidden in markups
Core APIs included
~$150–300/mo direct
Reimbursement commissions
20–25% of recovered
0% (you keep it all)
0%
Hours/week reconciling
10–15 hrs
<2 hrs
<2 hrs
Effective monthly cost
$3,200+
$3,499
$3,650–3,800
What you actually get
Fragmented data, 8 logins, no learning
One platform that gets smarter every day
Every data source wired in + platform intelligence

Effective cost estimates based on typical multi-channel operator at $3M–$10M annual marketplace revenue. Your calculator results above reflect your specific stack.

The Other Cost

Your most expensive tool
isn’t on that list.

It’s your time.

0hrs/week

Average time a multi-channel operator spends manually reconciling data across tools.

At a $75/hr blended operator rate, that's $46,800/year in recovered capacity when SENTINEL consolidates the workflow.
0–5 days

Average delay from 'something broke' to 'someone noticed' when alerts are scattered across 8 dashboards.

SENTINEL surfaces issues in minutes. A single stockout caught a day earlier can recover thousands in revenue.
0%

Of operators we've talked to say they've never filed every reimbursement they were entitled to — simply because they didn't have time.

SENTINEL runs automated sweeps and files them for you. You keep 100% of what's recovered.

Honest limits

A few things SENTINEL is not.

We’d rather you know the edges now than discover them after you sign.

Not: A replacement for your accounting system
QuickBooks and Xero remain your books of record. SENTINEL pushes clean, reconciled data into them — no manual exports.
Not: A replacement for your 3PL or WMS
We orchestrate the workflow, not the warehouse. Your 3PL stays in place. We give it better data to work with.
Not: A replacement for Amazon Seller Central
We read from and write to Seller Central via the SP-API. You still have a Seller Central account. We make it dramatically more useful.
Not: A substitute for a human ad manager at very high spend tiers
At $1M+/mo in ad spend, experienced humans who understand your brand are irreplaceable. SENTINEL makes them 3–5x more effective.

“If someone’s selling you ‘one tool replaces everything,’ they’re selling you a slide. We built the tool we wish we had — not a pitch.”

Ready to see your number

Ready to see your number
in your actual data?

On your demo, we’ll pull your public catalog into a SENTINEL environment. You’ll see which reimbursements you’re missing, which SKUs are about to stock out, and what your current tools aren’t telling you — on real data, in real time.

Request your personalized demo