Connect your Amazon account
One OAuth screen through Amazon's official Selling Partner API. Opero3P syncs your fees, inventory and listings daily; disconnect in one click whenever you like.
About 2 minutes✦ Amazon FBA · online arbitrage & wholesale
Opero3P checks each ASIN against your Seller Central account and sorts the brands into ungated, unlock with approval, or skip. It re-checks the gated ones every week, and runs the numbers so "sellable" also means "worth it."
14 days free · No card needed. Then $59/mo for 3 months with code LAUNCH59, $79 after.
Your first ten minutes
No onboarding call, no spreadsheet to fill in. Three steps and you're looking at your own list.
One OAuth screen through Amazon's official Selling Partner API. Opero3P syncs your fees, inventory and listings daily; disconnect in one click whenever you like.
About 2 minutesAn export from your research tool, a supplier's whole catalog or price sheet, or a Keepa seller list. Thousands at a time.
Paste or uploadEvery brand sorted: ungated now, unlock with approval (with Amazon's apply link and unit requirement), or skip. Deal Check then tells you which ones clear your ROI, margin and profit on real FBA fees.
Sell now · Unlock · Thin · SkipEvery gated brand you've ever scanned is re-checked against your account once a week, overnight. When one opens up it lands on your Newly sellable list with the ASINs, the date it changed and Amazon's apply link. And if something you could sell becomes gated, you find out before you buy, not when a shipment is refused.
Who built this
I run an FBA business, and for a long time my sourcing loop lived in four tools and a pile of spreadsheets: one to check gating, one to vet, one to reprice, and a weekend every month to work out what I'd actually made.
Opero3P is that loop in one place, built on the numbers I use in my own account every day: what I really paid, Amazon's real fees, and whether I'm allowed to list the thing at all. The books side was built and tested with a professional bookkeeper on a live Amazon business.
If you get stuck, email me. It's my inbox, not a ticket queue.
Rob · founder, Opero3P · rob@opero3p.com
Everything included
From "can I sell this?" to "is it worth it?" to "what did I actually make?" Same tool whether you're solo or running with a team.
Check thousands of ASINs against your account. A permanent registry of every brand you can sell today or unlock with approval.
Drop a supplier's price sheet; every line comes back Sell now, Unlock, Thin or Skip on your own criteria, with real FBA and referral fees.
Every gated brand re-checked overnight. A Newly sellable list when one opens up, and a warning if a product becomes gated.
Follow sellers. Each morning see only what they added since yesterday: first time on their storefront, or back in stock.
Chases the Buy Box without pricing below your real landed cost. Reacts in seconds, explains every move, one-click undo. Details →
Sequenced campaigns from your own Gmail, personalized per brand and contact. Replies auto-classified so you only read the interested ones.
Amazon's actual lines, FIFO cost of goods from what you paid, bank and card feeds via Plaid, and a monthly Accountant Pack workbook.
Every refund matched to its return and reimbursement. What Amazon may still owe you, the days left to file, and the case written for you.
Your gate status, what you paid last time and profit on your numbers, right on Amazon product pages. Included with Opero3P, starting with your trial.
Every brand and supplier in one place with invoices attached. Pull every invoice for an ASIN in one click for authenticity disputes.
Owner, admin, operations, outreach and sourcing roles. Same price, no seat fees.
Subscriptions, Amazon disbursements and renewals on one month view, with monthly and annual burn totals.
Repricer
Most repricers only see the Buy Box. Opero3P's sees what you actually paid, so it chases the Buy Box without pricing you into a loss. Every line below is from the app's own activity log on one real listing.
Pricing
No tiers, no upsells, no "the team features cost extra." Every part of the loop, one subscription.
Your first 3 months · offer runs through Dec 31, 2026
Then the regular $79/month. Cancel anytime.
Per-ASIN vetting and contact enrichment run on your own API keys, so that usage stays at cost, never bundled at our markup. See FAQ →
FAQ
For gating and Deal Check: your Amazon Seller Central account, connected through the official SP-API. That's it.
For per-ASIN vetting: a market-data API key (most serious sellers already have one).
For outreach: your Gmail, plus an Apollo account for contact enrichment (the free tier works to start). You bring your own keys, so that budget is yours, not bundled at our markup.
Connecting your accounts
Opero3P is an operations platform for Amazon sellers who source inventory through online arbitrage and from brands and distributors. Opening a wholesale account means emailing those brands, so Opero3P can optionally connect to your Gmail account and run that outreach from your own address. Connecting Google is optional — everything else in Opero3P works without it.
Opero3P does not read your mailbox. Each outreach email carries its own reply address on reply.opero3p.com, so when a brand answers, the reply comes straight to Opero3P, the brand is marked as replied, and its follow-ups stop. Optionally, you can add a Gmail filter that forwards bounce notices only, so campaigns stop emailing addresses that no longer work. You create that filter yourself and can remove it any time.
Accounts connected before September 20, 2026 also granted read access (gmail.readonly), used only to detect replies to Opero3P’s own outreach. It stops being used by October 10, 2026, when those accounts reconnect with send-only access.
We never sell your Google data, never share it with third parties, and never use it to train AI models. You can disconnect Gmail at any time in Settings, or revoke access from your Google Account permissions page.
Connect your account, drop in a list, and you'll have your own ungated-brands list before the coffee's cold. Fourteen days to see if Opero3P belongs in your stack.
Create your free account →No card needed to start · $59/mo for 3 months with LAUNCH59 · Cancel anytime