Financial infrastructure
to grow your revenue

Accept card payments, ACH transfers, and crypto — all from one platform. Build custom payment flows, automate billing, and onboard merchants at scale.

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Trusted payment infrastructure for modern businesses

Visa
Mastercard
Plaid
USDC
USDT
Apple Pay
Google Pay
Zelle
CashApp

A fully integrated suite of payment products

Everything you need to accept payments, manage revenue, and scale your business — all in one platform.

Online Payments

Accept payments from customers anywhere. Cards, bank transfers, digital wallets — one API.

Card Processing

Visa & Mastercard with interchange-plus pricing, fraud detection, PCI tokenization.

ACH Transfers

Plaid-powered bank payments. Lower fees, ideal for subscriptions & high-value transactions.

Crypto Payments

USDC & USDT on Polygon, Ethereum, Base, BSC, Tron, Solana. Instant settlement, wallet to wallet, never through a bank account.

Billing & Invoicing

Recurring billing, usage-based pricing, one-click invoicing, smart retry & dunning.

Merchant Onboarding

PayFac-style with automated KYB, risk scoring, tiered approval. Signup to live in minutes.

Compliance & Security

PCI DSS Level 1, fraud detection, 3D Secure, AML screening.

Global Reach

135+ currencies, local payment methods, automatic currency conversion & tax calculation.

135+

Currencies Supported

10+

Payment Methods

99.99%

Uptime SLA

<24hrs

Settlement Speed

Built for developers

Integrate payments in minutes — not months. A single API for cards, bank transfers, and crypto with comprehensive SDKs and documentation.

  • Accept cards, ACH, and crypto with one API call
  • Idempotency keys prevent duplicate charges
  • Webhook events for real-time status updates
  • Pre-built UI components & drop-in checkout
  • SDKs for Node.js, Python, Go, and more
curl -X POST https://api.chainpay.ac/v1/payments \
  -H "Authorization: Bearer cpk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "amount": 5000,
    "currency": "usd",
    "payment_method": "card",
    "description": "Order #1234",
    "metadata": { "order_id": "ord_123" }
  }'

Every way your customers want to pay

One integration, every payment method. Cards, bank transfers, and crypto — all managed from a single dashboard.

Most Popular

Credit & Debit Cards

Visa, Mastercard, Amex, Discover

  • PCI DSS Level 1
  • 3D Secure
  • Tokenization
  • Interchange-plus pricing
Lowest Fees

ACH Bank Transfers

Powered by Plaid

  • Plaid integration
  • Instant verification
  • Recurring support
  • 1% + 30¢, max $10 (Starter)
Instant Settlement

Stablecoin Payments

USDC & USDT

  • Multi-chain
  • HD wallet derivation
  • <30s settlement
  • 6 blockchains
  • Separate from bank accounts
Contactless

Digital Wallets

Apple Pay, Google Pay

  • Tap-to-pay
  • In-app payments
  • One-touch checkout
  • Biometric auth
Instant

P2P Payments

Zelle, CashApp

  • Real-time transfers
  • Social payments
  • No card needed
  • Instant settlement

Crypto payments are separate from bank payments. A customer pays in crypto from their own wallet, and the funds go on-chain to the merchant's own wallet. They never use or touch a bank account linked through Plaid. A bank account a customer links with Plaid is used only for the ACH payment it was linked for.

Start accepting payments today

Create your free account. Accept your first payment in minutes — no setup fees, no monthly minimums.

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