PayPal Java MCP Server

@kumartheashwani

About PayPal Java MCP Server

PayPal-Java-MCP Server

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "paypal-java-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "paypal-mcp-jsonrpc"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is PayPal Java MCP Server?

PayPal Java MCP Server is a Java implementation of a PayPal Merchant Capability Platform (MCP) server that provides tools for analyzing and improving payment processing. It offers JSON-RPC over HTTP and stdio interfaces, designed for developers integrating with PayPal’s capabilities.

How to use PayPal Java MCP Server?

Run in web mode (java -jar target/paypal-java-mcp-server-0.0.1-SNAPSHOT.jar) to expose a REST API on port 8080, or in stdio mode (java -Dspring.profiles.active=stdio ...) for JSON-RPC over standard input/output. Deploy with Smithery using the provided prepare-smithery.sh script or Docker.

Key features of PayPal Java MCP Server

JSON-RPC over HTTP API for web clients
JSON-RPC over stdio interface for Smithery integration
Authorization rate improvement analysis tool
Basic calculator tool for testing
Docker support for both REST API and JSON-RPC servers
Non‑interactive mode using named pipes

Use cases of PayPal Java MCP Server

Analyze transaction data and receive recommendations to improve authorization rates
Perform basic math operations as a testing tool
Deploy as a Smithery‑compatible server for AI‑assisted payment optimization
Run in non‑interactive environments (e.g., Docker, headless servers)

FAQ from PayPal Java MCP Server

What are the prerequisites for running the server?

Java 17 or higher and Maven 3.6 or higher are required.

How do I run the server in web mode?

Use java -jar target/paypal-java-mcp-server-0.0.1-SNAPSHOT.jar; the REST API is available at http://localhost:8080/api/mcp.

How do I run the server in JSON‑RPC over stdio mode?

Use the command with -Dspring.profiles.active=stdio -Dspring.main.web-application-type=NONE -Djsonrpc.stdio.interactive=true -jar target/paypal-java-mcp-server-0.0.1-SNAPSHOT-stdio.jar. The server reads requests from stdin and writes responses to stdout.

How can I deploy the server with Smithery?

Run ./prepare-smithery.sh to create a smithery-deploy directory with the JAR, configuration, and scripts. The Smithery config must set "interactive": true and include the -Djsonrpc.stdio.interactive=true flag.

What should I do if my environment does not support interactive stdio?

Use the start-non-interactive.sh script, which creates named pipes and pre‑initializes the server. Alternatively, set "interactive": false in the Smithery configuration and start the server with -Djsonrpc.stdio.interactive=false.

Frequently asked questions

What are the prerequisites for running the server?

Java 17 or higher and Maven 3.6 or higher are required.

How do I run the server in web mode?

Use `java -jar target/paypal-java-mcp-server-0.0.1-SNAPSHOT.jar`; the REST API is available at `http://localhost:8080/api/mcp`.

How do I run the server in JSON‑RPC over stdio mode?

Use the command with `-Dspring.profiles.active=stdio -Dspring.main.web-application-type=NONE -Djsonrpc.stdio.interactive=true -jar target/paypal-java-mcp-server-0.0.1-SNAPSHOT-stdio.jar`. The server reads requests from stdin and writes responses to stdout.

How can I deploy the server with Smithery?

Run `./prepare-smithery.sh` to create a `smithery-deploy` directory with the JAR, configuration, and scripts. The Smithery config must set `"interactive": true` and include the `-Djsonrpc.stdio.interactive=true` flag.

What should I do if my environment does not support interactive stdio?

Use the `start-non-interactive.sh` script, which creates named pipes and pre‑initializes the server. Alternatively, set `"interactive": false` in the Smithery configuration and start the server with `-Djsonrpc.stdio.interactive=false`.

Comments

Basic information

More Finance & Commerce MCP servers

Yahoo Finance MCP Server

narumiruna

165

₿itcoin & Lightning Network MCP Server

AbdelStark

Bitcoin & Lightning Network MCP Server.

MetaTrader 5 MCP Server

Qoyyuum

A Model Context Protocol (MCP) server for interacting with the MetaTrader 5 trading platform. This server provides AI assistants with tools and resources to access market data, perform trading operations, and analyze trading history.

187

Synci

Synci connects your real bank, brokerage, and crypto-exchange accounts to AI assistants, read-only. Ask about balances, transactions, holdings, and spending across all your accounts in one place.

Financial Datasets MCP Server

financial-datasets

An MCP server for interacting with the Financial Datasets stock market API.

2.2K