build-mcp-server

To design an MCP server for Claude integrations, you must first determine the deployment model—remote HTTP, MCPB, local stdio, or an MCP app—and then select matching tool patterns, frameworks, and authentication approaches.

Choosing between local stdio and remote HTTP requires evaluating your integration target: local stdio suits exposing local machine capabilities like filesystem or hardware access, while remote HTTP fits wrapping SaaS APIs for broader network access.

Handling OAuth authentication for an MCP server requires selecting an auth approach that matches your target integration deployment model, guided by safe reference materials for scaffolding and protocol guidance to ensure secure access.

Yes, you can use FastMCP to scaffold a production-grade MCP app. The design process recommends a framework choice based on your specific scenario, ensuring the tool design pattern aligns with your SaaS API or local application requirements.

Use MCPB instead of streamable HTTP when your use case involves bundled local servers or widgets, as MCPB is specifically designed for bundled local server scenarios rather than continuous remote HTTP streaming.

An MCP server deployment model mismatches a SaaS API integration when the initial design phase skips use case interviewing, leading to choosing local stdio instead of the required remote HTTP or streamable HTTP transport for network access.