What are the runtime requirements?
Python 3 with Google ADK 0.3.0+ (`google-adk==0.3.0`, `google-cloud-aiplatform==1.90.0`) and Node.js with npx for the MCP client. A PayPal sandbox account is required.
@gkcng
基本信息
The commerce-centric demo shown live at Paypal Dev Days 2025 on 4/29. Featuring Paypal Agent Toolkit & MCP server with Google's Agent Development Kit (ADK)
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This demo showcases a conversational pre-sales engagement built with PayPal's Agent Toolkit (via MCP) and Google's Agent Development Kit (ADK). It is intended for developers exploring agent-based commerce workflows using the PayPal sandbox environment.
Install prerequisites: Python 3, Google ADK 0.3.0+, Node.js with npx, and the required Python packages. Copy env.example to .env, fill in your Google API Key (or GCP Project ID/Location) and PayPal sandbox credentials (PAYPAL_CLIENT_ID, PAYPAL_SECRET). Modify the user_profile and orders dictionaries in paypal_mcp_agent/util.py with real sandbox order data. Run adk web in the pp_mcp_adk directory, then open http://localhost:8000/dev-ui?app=paypal_mcp_agent in a browser.
Python 3 with Google ADK 0.3.0+ (`google-adk==0.3.0`, `google-cloud-aiplatform==1.90.0`) and Node.js with npx for the MCP client. A PayPal sandbox account is required.
Register at developer.paypal.com to create apps. Each app provides a Client ID, Secret Key, and a sandbox account with test credit cards, addresses, and bank details for testing transactions.
The demo tests and uses these APIs: `orders.create`, `orders.get`, `orders.capture`, `shipment.create`, `shipment.get`, `subscriptions.create`, `subscriptions.show`, `subscriptions.cancel`.
Order capture succeeds only after the consumer completes payment via the returned URL. Subscriptions require a previously created product and plan. Disputes must be created by the human in the sandbox before a merchant can accept them. `list_transactions` has a delay.
The demo loads a hardcoded `user_profile` and `orders` dictionary from `paypal_mcp_agent/util.py`. Order data must correspond to actual records in the PayPal sandbox. No persistent database is used.
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