MCPcat Guides
Try out MCPcatMCP Dev Quickstart
Quickly get started building your own MCP server with popular frameworks and tools
Installing MCP servers globally vs locally: which approach to choose
Choose between global and local MCP server installations based on your project needs and workflow.
How to fork and customize an open-source MCP server
Fork and customize existing MCP servers to add new tools, resources, and functionality for your needs.
Configuring MCP installations for production deployments
Configure MCP servers for production with security, monitoring, and deployment best practices.
Building a StreamableHTTP MCP server
Deploy scalable MCP servers using StreamableHTTP for cloud environments and remote access.
Building a stdio MCP server
Build MCP servers with stdio transport for local CLI tools and subprocess communication.
Building an MCP server in TypeScript
Build type-safe MCP servers using TypeScript with full SDK support and production best practices.
Building an MCP server in Rust
Create memory-safe MCP servers in Rust with exceptional performance and type safety guarantees.
Building an MCP server in Go
Learn how to build high-performance MCP servers using Go with concurrency and production-ready patterns.
Building an MCP server in Python using FastMCP
Build production-ready MCP servers in Python using the FastMCP framework with automatic tool handling.
MCP Connection Management
Understand transport protocols, manage connections, and debug common connection errors
Understanding the JSON-RPC protocol and how it's used in MCP
Understand how JSON-RPC 2.0 protocol powers MCP client-server communication and message structure.
Setting up StreamableHTTP for scalable deployments
Deploy scalable MCP servers with StreamableHTTP for high performance and horizontal scaling.
Implementing connection health checks and monitoring
Implement health checks and monitoring for MCP servers to ensure reliable production deployments.
Fixing "Method not found (-32601)" JSON-RPC errors
Troubleshoot JSON-RPC method not found errors in MCP servers with detailed debugging strategies.
Fixing "MCP error -32001: Request timed out" errors
Fix MCP error 32001 request timeouts with timeout configuration and performance optimization strategies.
Fixing "MCP error -32000: Connection closed" errors
Resolve MCP error 32000 connection closed issues with platform-specific solutions and debugging steps.
Debugging message serialization errors in MCP protocol
Debug and fix MCP message serialization errors with proven troubleshooting techniques.
Configuring MCP transport protocols for Docker containers
Configure MCP servers in Docker containers with proper transport protocols and networking.
Comparing stdio vs. SSE vs. StreamableHTTP
Compare MCP transport protocols to choose between stdio, SSE, and StreamableHTTP for your use case.
MCP Debugging
Test and debug MCP servers using inspector tools and debugging techniques
MCP Testing
Write comprehensive tests for MCP servers including unit, integration, and security tests
Writing unit tests for MCP servers
Write effective unit tests for MCP servers using in-memory patterns and testing frameworks.
Validation tests for tool inputs
Write validation tests for MCP tool inputs covering schema validation and type checking.
Setting up MCP Inspector for server testing
Set up MCP Inspector to test and debug your MCP servers with real-time visual interface.
Security tests for MCP server endpoints
Test MCP server security by validating authentication, authorization, and vulnerability scanning.
Integration tests for MCP flows
Write end-to-end integration tests for MCP workflows to validate client-server communication flows.
MCP Security
Ensure MCP servers are deployed safely following security best practices