PayPal MCP Server

Maintained by DynamicEndpoints - Contact: kameron@dynamicendpoints.com

A Model Context Protocol (MCP) server that provides integration with PayPal's APIs. This server enables seamless interaction with PayPal's payment processing, invoicing, and business management features through a standardized interface.

Architecture

Features

Payment Processing
- Create and manage orders
- Process payments
- Handle payment tokens
- Manage disputes
Business Operations
- Create and manage products
- Generate invoices
- Process payouts
- Handle partner referrals
User Management
- Identity verification
- User information retrieval
- Web profile management

Installation

Installing via Smithery

To install PayPal MCP Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @DynamicEndpoints/Paypal-MCP --client claude

Manual Installation

Clone the repository
Install dependencies:
npm install
Build the project:
npm run build
Configure PayPal credentials in the MCP settings file:
{ "mcpServers": { "paypal": { "command": "node", "args": ["path/to/paypal-server/build/index.js"], "env": { "PAYPAL_CLIENT_ID": "your_client_id", "PAYPAL_CLIENT_SECRET": "your_client_secret" }, "disabled": false, "autoApprove": [] } } }

Available Tools

Payment Operations

create_payment_token

Create a payment token for future use.

{
  customer: {
    id: string;
    email_address?: string;
  };
  payment_source: {
    card?: {
      name: string;
      number: string;
      expiry: string;
      security_code: string;
    };
    paypal?: {
      email_address: string;
    };
  };
}

create_order

Create a new order in PayPal.

{
  intent: 'CAPTURE' | 'AUTHORIZE';
  purchase_units: Array<{
    amount: {
      currency_code: string;
      value: string;
    };
    description?: string;
    reference_id?: string;
  }>;
}

create_payment

Create a direct payment.

{
  intent: string;
  payer: {
    payment_method: string;
    funding_instruments?: Array<{
      credit_card?: {
        number: string;
        type: string;
        expire_month: number;
        expire_year: number;
        cvv2: string;
        first_name: string;
        last_name: string;
      };
    }>;
  };
  transactions: Array<{
    amount: {
      total: string;
      currency: string;
    };
    description?: string;
  }>;
}

Business Operations

create_product

Create a new product in the catalog.

{
  name: string;
  description: string;
  type: 'PHYSICAL' | 'DIGITAL' | 'SERVICE';
  category: string;
  image_url?: string;
  home_url?: string;
}

create_invoice

Generate a new invoice.

{
  invoice_number: string;
  reference: string;
  currency_code: string;
  recipient_email: string;
  items: Array<{
    name: string;
    quantity: string;
    unit_amount: {
      currency_code: string;
      value: string;
    };
  }>;
}

create_payout

Process a batch payout.

{
  sender_batch_header: {
    sender_batch_id: string;
    email_subject?: string;
    recipient_type?: string;
  };
  items: Array<{
    recipient_type: string;
    amount: {
      value: string;
      currency: string;
    };
    receiver: string;
    note?: string;
  }>;
}

User & Profile Management

get_userinfo

Retrieve user information.

{
  access_token: string;
}

create_web_profile

Create a web experience profile.

{
  name: string;
  presentation?: {
    brand_name?: string;
    logo_image?: string;
    locale_code?: string;
  };
  input_fields?: {
    no_shipping?: number;
    address_override?: number;
  };
  flow_config?: {
    landing_page_type?: string;
    bank_txn_pending_url?: string;
  };
}

Usage Examples

Creating an Order

const result = await mcpClient.useTool('paypal', 'create_order', {
  intent: 'CAPTURE',
  purchase_units: [{
    amount: {
      currency_code: 'USD',
      value: '100.00'
    },
    description: 'Premium Subscription'
  }]
});

Generating an Invoice

const result = await mcpClient.useTool('paypal', 'create_invoice', {
  invoice_number: 'INV-2024-001',
  reference: 'REF-2024-001',
  currency_code: 'USD',
  recipient_email: 'customer@example.com',
  items: [{
    name: 'Consulting Services',
    quantity: '1',
    unit_amount: {
      currency_code: 'USD',
      value: '500.00'
    }
  }]
});

Processing a Payout

const result = await mcpClient.useTool('paypal', 'create_payout', {
  sender_batch_header: {
    sender_batch_id: 'Payroll_2024_001',
    email_subject: 'You have received a payment'
  },
  items: [{
    recipient_type: 'EMAIL',
    amount: {
      value: '1000.00',
      currency: 'USD'
    },
    receiver: 'employee@example.com',
    note: 'Monthly salary payment'
  }]
});

Error Handling

The server implements comprehensive error handling:

Input validation errors with detailed messages
PayPal API errors with response details
Network and authentication errors
Rate limiting and timeout handling

Security Considerations

All sensitive data is validated and sanitized
OAuth 2.0 authentication with PayPal
Secure credential management through environment variables
Input validation for all API parameters
Error messages don't expose sensitive information

Development

Building

npm run build

Testing

npm test

Debugging

The server outputs detailed logs to help with debugging:

Authentication issues
API call failures
Validation errors
Request/response details

Contributing

Fork the repository
Create a feature branch
Commit your changes
Push to the branch
Create a Pull Request

License

MIT License