payram-checkout-integration

name	payram-checkout-integration
description	Integrate PayRam checkout flow into web applications. Generate payment links, embed payment pages, handle redirects, and process payment confirmations. Supports Express, Next.js, FastAPI, Laravel, Gin, Spring Boot. Use when adding crypto checkout to e-commerce, building payment forms, implementing deposit flows, or creating hosted payment pages for crypto acceptance.

PayRam Checkout Integration

First time with PayRam? See payram-setup to configure your server, API keys, and wallets.

Implement payment acceptance flows using PayRam's API. Create payments, redirect users, and confirm transactions.

Payment Flow Overview

1. Your Backend → POST /api/v1/payment → PayRam
2. PayRam returns { url, reference_id, host }
3. Redirect user to payment URL
4. User selects chain/token, sends payment
5. PayRam confirms on-chain → webhook to your backend
6. Your backend fulfills order

Payment States

Payments transition through these states:

• OPEN — Payment created, awaiting customer action
• FILLED — Customer sent exact amount, payment confirmed
• PARTIALLY_FILLED — Partial payment received (less than requested)
• OVER_FILLED — Overpayment received (more than requested)
• CANCELLED — Payment manually cancelled
• UNDEFINED — Unknown status (fallback)

SDK Integration (Node.js/TypeScript)

Install SDK

npm install payram dotenv

Create Payment with SDK

import { Payram, InitiatePaymentRequest, InitiatePaymentResponse, isPayramSDKError } from 'payram';

const payram = new Payram({
  apiKey: process.env.PAYRAM_API_KEY!,
  baseUrl: process.env.PAYRAM_BASE_URL!,
  config: {
    timeoutMs: 10_000,
    maxRetries: 2,
    retryPolicy: 'safe',
    allowInsecureHttp: false,
  },
});

export async function createCheckout(
  payload: InitiatePaymentRequest,
): Promise<InitiatePaymentResponse> {
  try {
    const checkout = await payram.payments.initiatePayment(payload);
    console.log('Redirect customer to:', checkout.url);
    console.log('Payment reference:', checkout.reference_id);
    return checkout;
  } catch (error) {
    if (isPayramSDKError(error)) {
      console.error('Payram Error:', {
        status: error.status,
        requestId: error.requestId,
        retryable: error.isRetryable,
      });
    }
    throw error;
  }
}

// Example usage
await createCheckout({
  customerEmail: '[e-mail]',
  customerId: 'cust_123',
  amountInUSD: 49.99,
});

Required Fields:

• customerEmail: Customer's email address
• customerId: Your internal customer identifier
• amountInUSD: Payment amount in USD

Optional Fields:

• settlementCurrency: Currency for settlement (default: USD)
• memo: Internal reference or description
• redirectUrl: Custom URL to redirect after payment

Check Payment Status with SDK

import { Payram, PaymentRequestData, isPayramSDKError } from 'payram';

const payram = new Payram({
  apiKey: process.env.PAYRAM_API_KEY!,
  baseUrl: process.env.PAYRAM_BASE_URL!,
});

export async function getPaymentStatus(referenceId: string): Promise<PaymentRequestData> {
  try {
    const payment = await payram.payments.getPaymentRequest(referenceId);
    // paymentState ∈ OPEN | PARTIALLY_FILLED | FILLED | OVER_FILLED | CANCELLED.
    // filledAmount = crypto amount received; filledAmountInUSD = its USD value
    // (requires core >= 2026-07-25; older builds returned USD in filledAmount).
    console.log('Latest payment state:', payment.paymentState);
    console.log('Filled (crypto):', payment.filledAmount, '| USD:', payment.filledAmountInUSD);
    return payment;
  } catch (error) {
    if (isPayramSDKError(error)) {
      console.(, {
        : error.,
        : error.,
        : error.,
      });
    }
     error;
  }
}

HTTP Integration (Python, Go, PHP, Java)

API Endpoint

POST https://your-payram-server/api/v1/payment
Header: API-Key: your-api-key
Content-Type: application/json

Critical: PayRam uses API-Key header, NOT Authorization: Bearer.

Request Body:

{
  "customerEmail": "[e-mail]",
  "customerId": "user_12345",
  "amountInUSD": 25
}

Response:

{
  "host": "https://your-payram-server",
  "reference_id": "c80f5363-0397-4761-aa1a-3155c3a21470",
  "url": "https://your-payram-server/payments?reference_id=..."
}

Python (FastAPI)

import httpx
import os
from fastapi import APIRouter
from fastapi.responses import RedirectResponse

PAYRAM_BASE_URL = os.environ['PAYRAM_BASE_URL']
PAYRAM_API_KEY = os.environ['PAYRAM_API_KEY']

@router.post("/create-payment")
async def create_payment(email: str, user_id: str, amount: float):
    async with httpx.AsyncClient() as client:
        resp = await client.post(
            f"{PAYRAM_BASE_URL}/api/v1/payment",
            json={"customerEmail": email, "customerId": user_id, "amountInUSD": amount},
            headers={"API-Key": PAYRAM_API_KEY}
        )
    return RedirectResponse(resp.json()["url"])

Go (Gin)

func CreatePayment(email, customerID string, amount float64) (*InitiatePaymentResponse, error) {
    body, _ := json.Marshal(map[string]interface{}{
        "customerEmail": email,
        "customerId":    customerID,
        "amountInUSD":   amount,
    })

    url := fmt.Sprintf("%s/api/v1/payment", os.Getenv("PAYRAM_BASE_URL"))
    req, _ := http.NewRequest(http.MethodPost, url, bytes.NewBuffer(body))
    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("API-Key", os.Getenv("PAYRAM_API_KEY"))

    resp, err := http.DefaultClient.Do(req)
    // ... handle response
}

PHP (Laravel)

$ch = curl_init(getenv('PAYRAM_BASE_URL') . '/api/v1/payment');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'API-Key: ' . getenv('PAYRAM_API_KEY'),
    ],
    CURLOPT_POSTFIELDS => json_encode($payload),
    CURLOPT_RETURNTRANSFER => true,
]);

Java (Spring Boot)

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create(baseUrl + "/api/v1/payment"))
    .header("Content-Type", "application/json")
    .header("API-Key", apiKey)
    .POST(HttpRequest.BodyPublishers.ofString(payload))
    .build();

Framework Route Examples

Express.js Route

import { Router } from 'express';
import { Payram, InitiatePaymentRequest, isPayramSDKError } from 'payram';

const router = Router();
const payram = new Payram({
  apiKey: process.env.PAYRAM_API_KEY!,
  baseUrl: process.env.PAYRAM_BASE_URL!,
});

router.post('/api/payments/payram', async (req, res) => {
  const payload = req.body as Partial<InitiatePaymentRequest>;

  if (!payload?.customerEmail || !payload.customerId || typeof payload.amountInUSD !== 'number') {
    return res.status(400).json({ error: 'MISSING_REQUIRED_FIELDS' });
  }

  try {
    const checkout = await payram.payments.initiatePayment({
      customerEmail: payload.customerEmail,
      customerId: payload.customerId,
      amountInUSD: payload.,
    });
     res.().({
      : checkout.,
      : checkout.,
    });
  }  (error) {
     ((error)) {
      .(, { : error., : error. });
    }
     res.().({ :  });
  }
});

Next.js App Router

import { NextRequest, NextResponse } from 'next/server';
import { Payram, InitiatePaymentRequest, isPayramSDKError } from 'payram';

const payram = new Payram({
  apiKey: process.env.PAYRAM_API_KEY!,
  baseUrl: process.env.PAYRAM_BASE_URL!,
});

export async function POST(request: NextRequest) {
  const payload = (await request.json()) as Partial<InitiatePaymentRequest>;

  if (!payload?.customerEmail || !payload.customerId || typeof payload.amountInUSD !== 'number') {
    return NextResponse.json({ error: 'MISSING_REQUIRED_FIELDS' }, { status: 400 });
  }

  try {
    const checkout = await payram.payments.initiatePayment({
      customerEmail: payload.,
      : payload.,
      : payload.,
    });
     .({
      : checkout.,
      : checkout.,
    });
  }  (error) {
     ((error)) {
      .(, { : error., : error. });
    }
     .({ :  }, { :  });
  }
}

Status Polling Pattern

async function pollPaymentStatus(referenceId: string, maxAttempts = 10) {
  for (let i = 0; i < maxAttempts; i++) {
    const payment = await getPaymentStatus(referenceId);

    if (payment.paymentState === 'FILLED' || payment.paymentState === 'OVER_FILLED') {
      return payment;
    }

    if (payment.paymentState === 'CANCELLED') {
      throw new Error(`Payment ${payment.paymentState.toLowerCase()}`);
    }

    if (payment.paymentState === 'UNDEFINED') {
      throw new Error('Payment status undefined');
    }

    await new Promise((resolve) => setTimeout(resolve, Math.min(1000 * Math.pow(2, i), 30000)));
  }

  throw new Error('Payment status check timeout');
}

Database Schema

CREATE TABLE payments (
    id SERIAL PRIMARY KEY,
    customer_id VARCHAR(255) NOT NULL,
    payram_reference_id VARCHAR(255) UNIQUE NOT NULL,
    amount_usd DECIMAL(10, 2) NOT NULL,
    status VARCHAR(50) DEFAULT 'OPEN',
    checkout_url TEXT NOT NULL,
    created_at TIMESTAMP DEFAULT NOW(),
    updated_at TIMESTAMP DEFAULT NOW()
);

CREATE INDEX idx_payram_reference ON payments(payram_reference_id);
CREATE INDEX idx_customer_id ON payments(customer_id);

MCP Server Code Generation

Use the PayRam MCP server to generate framework-specific code:

Framework	MCP Tool
JavaScript SDK	generate_payment_sdk_snippet
Raw HTTP (any language)	generate_payment_http_snippet
Express.js	snippet_express_payment_route
Next.js App Router	snippet_nextjs_payment_route
FastAPI	snippet_fastapi_payment_route
Gin (Go)	snippet_gin_payment_route
Laravel	snippet_laravel_payment_route
Spring Boot	snippet_spring_payment_route

Environment Configuration

# .env
PAYRAM_BASE_URL=https://your-payram-server
PAYRAM_API_KEY=your-api-key-here

Use generate_env_template MCP tool to scaffold this.

Error Handling

HTTP Code	Meaning	Action
200/201	Payment created	Redirect to URL
401	Invalid API key	Check API-Key header (NOT Authorization)
400	Invalid request	Check required fields, amount > 0
404	Merchant not found	Verify PAYRAM_BASE_URL
500	Server error	Retry with backoff

All PayRam Skills

Skill	What it covers
payram-setup	Server config, API keys, wallet setup, connectivity test
payram-agent-onboarding	Agent onboarding — CLI-only deployment for AI agents, no web UI
payram-analytics	Analytics dashboards, reports, and payment insights via MCP tools
payram-crypto-payments	Architecture overview, why PayRam, MCP tools
payram-payment-integration	Quick-start payment integration guide
payram-self-hosted-payment-gateway	Deploy and own your payment infrastructure
payram-checkout-integration	Checkout flow with SDK + HTTP for 6 frameworks
payram-webhook-integration	Webhook handlers for Express, Next.js, FastAPI, Gin, Laravel, Spring Boot
payram-stablecoin-payments	USDT/USDC acceptance across EVM chains and Tron
payram-bitcoin-payments	BTC with HD wallet derivation and mobile signing
payram-payouts	Send crypto payouts and manage referral programs
payram-no-kyc-crypto-payments	No-KYC, no-signup, permissionless payment acceptance

Support

Need help? Message the PayRam team on Telegram: @PayRamChat

• Website: https://payram.com
• GitHub: https://github.com/PayRam
• MCP Server: https://github.com/payram/payram-mcp