SydeRail is a browser extension that drops card, terminal, ACH, and pay-by-link payments into any web app your merchant works in — on any processor. Onboard merchants in minutes and manage every payment from your agent panel.
Acme Storefront
Charge $2,500 · approved
Clover · settledVault · NMI
Dunning recovered
+$4,210 reclaimedProcessors
Stripe · NMI · Auth.Net
Clover · Fortis · Dejavoo
Billing modes
Gateway · External
SydeRail-managed
Charges
1,284
today
18
declined
Subscriptions
92
active
4
past due
Pay links
312
sent
208
paid
$1.2M
Volume · 30d
34
Merchants live
98.7%
Success rate
One extension. Every processor your merchants run.
A single extension that takes payments inside any web app — backed by an agent panel that manages every merchant, processor, and device.
The extension lives in the browser side panel, right next to the CRM, scheduler, or practice software your merchant already uses — take a payment without switching tabs.
Card (popup or inline), physical terminal, ACH bank debit, and pay-by-link — all from one place. Recurring subscriptions too, billed three different ways.
Stripe, NMI, Auth.Net, Clover and more. Switch a merchant from one processor to another without changing a single thing about how their staff take payments.
Reads the customer's details straight off the page the cashier is on, then writes the receipt and result back into the host app automatically — no double entry.
Cards are tokenized by the processor's own JS inside a hosted frame — raw card numbers never touch the host app, your servers, or ours. Keeps everyone at PCI SAQ A.
Onboard merchants, connect processors, register terminals, and pair devices — all from one agent panel. Grant or revoke each cashier device individually.
The SydeRail extension opens in the browser's side panel alongside whatever software your merchant uses all day. Their staff take a payment right there — no new tab, no copy-paste, no leaving the customer's record.
Charge a card, push to a terminal, or send a pay-by-link in two clicks
Customer details auto-filled from the page the cashier is on
Receipts and results written back into the host app automatically
Paired per device — grant or revoke each cashier individually
No card data ever reaches the host app or your servers (PCI SAQ A)
Amount
Recent
Three steps to put SydeRail in your merchant's hands.
Install SydeRail and pair the merchant's browser with a one-time code generated in your agent panel.
Link the merchant's Stripe, NMI, Auth.Net, or Clover account. Set the billing mode and you're ready to charge.
Staff charge cards, push to terminals, debit ACH, or send pay-by-link — right inside the web app they already use.
Give every merchant card, terminal, ACH, and pay-by-link — inside the tools they already use, on the processor they already have.