Unlocking Real-Time Performance on PayPal’s Remote MCP Server

In the rapidly evolving landscape of AI, the Model Context Protocol (MCP) has emerged as the standard protocol for communication between AI models and external systems. While Server-Sent Events (SSE) has served us well, streamable HTTP represents a paradigm shift that transforms how we handle real-time data.

Streamable HTTP allows servers to send data to clients in chunks, rather than waiting to compile a complete response. When using streamable HTTP transport, customers will start receiving a response immediately, providing a better user experience. Modern applications can display results as they become available, avoiding spinners and long delays to keep people engaged.

We have implemented streamable HTTP alongside our existing Server-Sent Events (SSE) implementation, providing backward compatibility for existing integrations or in the event the MCP client does not yet support streamable HTTP.

To start using PayPal’s streamable MCP transport, simply connect your MCP client or application: 

For more information, visit PayPal.ai.

*Disclaimer: PayPal’s MCP server and agent toolkit provide access to AI-generated content that may be inaccurate or incomplete. Users are responsible for independently verifying any information before relying on it. PayPal makes no guarantees regarding output accuracy and is not liable for any decisions, actions, or consequences resulting from its use.