Multi-Server MCP Architecture: Routing, Isolation, and Control
An architecture guide for coordinating multiple MCP servers without creating tool collisions, permission sprawl, or shared failure domains.
Topic
#mcp
28 articles — updated daily
MCP Sampling Explained: Model Calls Requested by Servers
A practical explanation of MCP sampling, including message flow, model preferences, tool use, approvals, security, and current design status.
MCP Roots and Filesystem Boundaries Explained
A security-focused guide to MCP roots, file URI validation, workspace boundaries, user consent, symlinks, and modern alternatives.
MCP Logging and Completion Utilities
A practical reference to MCP logging notifications and completion suggestions, including current status, security, and implementation boundaries.
MCP Elicitation: Requesting User Input Safely
A practical guide to requesting missing user input during MCP operations without confusing conversation, consent, or credentials.
Why MCP Exists: The Integration Problem It Solves
Understand why AI integrations become difficult at scale and how MCP creates a reusable boundary between AI applications and external systems.
What Is MCP? A Practical Guide for AI Agent Builders
A practical, beginner-friendly guide to the Model Context Protocol: its host-client-server architecture, tools and resources, request flow, trade-offs, and security boundaries.
MCP vs APIs: What Changes and When to Use Each
Learn how MCP relates to REST APIs and SDKs, what each layer owns, and why most production MCP servers still call existing APIs.
MCP Architecture: Hosts, Clients, Servers, Tools, and Resources
A component-by-component guide to MCP architecture, including host and client responsibilities, server primitives, transports, and trust boundaries.
Testing and Debugging MCP Servers
A practical workflow for inspecting, testing, and debugging MCP servers from protocol exchange to downstream side effects.
MCP Tool Permissions and Least Privilege
A practical permission model for controlling which MCP tools users and agents can discover, call, and approve.
MCP Security Threat Model for Production Systems
A practical threat model for MCP hosts, clients, servers, tools, credentials, model context, and downstream systems.
MCP Prompt Injection, Tool Poisoning, and Data Exfiltration
A defensive guide to prompt injection, tool poisoning, confused-deputy risks, and data exfiltration in MCP systems.
Deploy and Observe a Remote MCP Server
A production deployment guide for remote MCP servers covering network boundaries, identity, scaling, observability, and rollback.
MCP Tool Design: Schemas, Descriptions, and Structured Outputs
Practical MCP tool-design guidance covering names, descriptions, JSON Schema, structured results, errors, permissions, and testing.
MCP Error Handling: Timeouts, Retries, and Cancellation
A reliability guide to MCP errors, deadlines, retries, cancellation, progress, idempotency, ambiguous writes, and observable recovery.
MCP Authentication and Authorization Explained
A production-focused guide to authenticating MCP clients and authorizing users, tools, resources, tenants, and downstream actions.
Build an MCP Client: Discovery, Routing, and Results
An implementation guide to MCP client connection management, tool discovery, model mapping, routing, result handling, and observability.
Build Your First MCP Server in Python
A step-by-step Python tutorial for building, running, testing, and hardening a small MCP server with a typed tool.
MCP Tools Explained: How AI Agents Take Action
A practical guide to MCP tools, including schemas, discovery, execution, approvals, errors, and safe production design.
MCP Transports: STDIO vs Streamable HTTP
Understand how MCP messages travel over STDIO and Streamable HTTP and how to choose the right transport for local and remote servers.
MCP Resources Explained: Giving Agents the Right Context
Understand MCP resources, resource URIs, templates, discovery, reading, subscriptions, and safe context selection.
MCP Prompts Explained: Reusable Workflows for AI Applications
A practical guide to MCP prompts, including discovery, arguments, message content, user control, safety, and design patterns.
MCP Lifecycle and Capability Negotiation
A current guide to MCP version compatibility, capability discovery, request metadata, feature use, and the transition from older handshakes.
MCP Security and Permissions
A practical security model for MCP trust boundaries, authorization, least privilege, approvals, external content, backend credentials, and auditability.
MCP Client Architecture
Understand how an MCP host manages dedicated clients, discovers server capabilities, applies policy, invokes operations, and handles failures.
MCP + A2A Production Architecture
A production architecture for combining MCP capability access with A2A specialist delegation while preserving policy, identity, tracing, and failure boundaries.
Building an MCP Server
A framework-neutral tutorial for designing, implementing, testing, securing, and deploying an MCP server over real backend systems.