PCI DSS Level 1 · 99.999% uptime · Built for scale

One payment platform.
Every way you get paid.

Koi Pay™ runs card-present, online, recurring, ACH and crypto on a single API and one dashboard — fraud, vaulting, invoicing and reporting built in. Your brand on every surface.

$0
Processed annually
0
Average auth rate
0
Products, one API
One platform for
Retail & POSeCommerceSaaS platformsSubscriptionsB2B & B2GEnterprise
The platform

Everything you need to move money, in one place

Stop stitching together a gateway, a vault, a fraud tool and three reporting exports. Koi Pay puts the whole payment stack behind one API and one dashboard.

Accept any payment, any channel

Card-present, online checkout, virtual terminal, recurring, ACH and crypto — all on the same rail, settling to the same dashboard.

Koi Guard™ fraud

Rules + ML tuned to your portfolio, not generic traffic.

Customer Vault

Tokenize card & ACH once, charge forever.

Recurring billing

Plans, retries, dunning & account updater.

Real-time reporting

Sub-second portfolio queries. Decline codes, settlement timing, fraud — filtered and exported without leaving the page.

White-label

Your brand on the portal, receipts & emails.

Capabilities

20+ payment products, one switch away

Turn on exactly what each merchant needs. Every product runs on the same Koi Pay gateway and is ready to white-label on day one.

Virtual Terminal

Card & ACH from any browser.

Simple Payments

Hosted pages & pay-by-link.

EMV & Mobile

NFC, contactless & chip.

Cart Integrations

Plug into major carts.

E-Invoicing

Branded invoices via SMS/email.

Tokenizer

Hosted fields, SAQ A scope.

Account Updater

Auto-refresh stored cards.

Batch Processing

CSV upload, same-day recon.

Cash Discount

Patented DTI program.

Dual Pricing

Cash & card price at POS.

Surcharging

Compliant credit surcharges.

Level 3 Processing

B2B/B2G interchange savings.

Koi Strike™ ML

Adaptive fraud scoring.

Gateway Emulator

Migrate with no rewrite.

QuickBooks Sync

Two-way reconciliation.

Crypto Acceptance

Digital currencies at checkout.

The dashboard

See your whole portfolio in real time

Volume, approval rates, declines, settlement timing and fraud signals — live, filterable, and exportable. No overnight batch, no stale numbers.

  • Sub-second queries across millions of transactions
  • Decline-reason analytics & retry insights
  • Role-based access for owners, agents & staff
Open the dashboard
portal.koi-pay.com
Monthly volume
$48.2M
▲ 9.1%
Auth rate
99.2%
▲ 0.4%
ApprovedVISA •• 4242$124.50
SettledMC •• 8801$48.00
RefundedAMEX •• 0039−$19.99
Koi Guard™

Fraud prevention that learns your business

Rules, velocity filters and machine-learning scoring tuned per merchant — so you stop fraud without blocking good customers. Network-wide signals catch coordinated attacks early.

  • Real-time ML scoring on every transaction
  • Per-merchant sensitivity, not vendor defaults
  • HIPAA & PCI DSS compliance built in
Compare plans
POST /v1/transactions
// Charge a vaulted customer, fraud-scored by Koi Guard
const charge = await koipay.transactions.create({
  amount: 12450,           // $124.50
  currency: "usd",
  source: "cust_2Nz8Kq",    // vault token
  fraud: { engine: "koi_guard" }
});

// → { id: "txn_9Fa", status: "approved",
//     risk_score: 4, auth_code: "0X1A9" }
Developers

A modern API your team will actually enjoy

One REST API, hosted fields, webhooks and a full sandbox. Migrate off a legacy gateway with the emulator — no rewrite, no downtime.

REST + webhooks

Predictable endpoints, signed events, idempotency keys.

Hosted fields

Card data goes browser-to-vault. Stay SAQ A.

Sandbox & emulator

Test instantly; emulate a legacy gateway's API.

Read the docs Quickstart in 5 minutes Embedded & ecommerce
Getting started

Live in three steps

1

Create your account

Sign up and get instant sandbox keys. Connect your processor or use ours.

2

Brand & configure

White-label the portal, switch on the products you need, set fraud rules.

3

Go live & scale

Start accepting payments across every channel, watching it all in one dashboard.

Pricing

Simple pricing that scales with you

No tiered surcharges, no mystery fees. Pick a plan or talk to us for portfolio rates.

Starter

$0/mo + 2.6% + 10¢

For new businesses getting their first payments online.

  • Virtual terminal & pay-by-link
  • Customer vault & tokenizer
  • Real-time dashboard
Start free
Most popular

Growth

$99/mo + 2.3% + 10¢

For scaling merchants who need the full toolkit.

  • Everything in Starter
  • Recurring billing & account updater
  • Koi Guard™ fraud + Level 3
  • Cash discount & surcharging
Launch portal

Enterprise

Custom

For platforms, ISOs & high-volume portfolios.

  • Full white-label & multi-merchant
  • Processor-agnostic routing
  • Dedicated support & SLAs
Talk to sales
★★★★★
"We moved our entire stack to Koi Pay and watched approval rates climb while fraud dropped. One dashboard, our brand, zero outages."
TD
Tony D.CEO, multi-location retail

Your payments, your brand, one platform.

Spin up a Koi Pay portal in minutes — or sign in and pick up where you left off.

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