MCP Pillar Directory

What the Model Context Protocol is, why it exists, and how it works.

/learn/model-context-protocol

Catalog of MCP servers for browsing and discovery.

/servers

Setup and configuration guides for MCP client applications.

/clients

The local stdio transport: process spawn and JSON-RPC over stdin/stdout.

/learn/mcp-stdio

The remote Streamable HTTP transport: POST + SSE for server-to-client streaming.

/learn/mcp-streamable-http

MCP tools: discovery, schemas, invocation, and security.

/learn/mcp-tools

MCP resources: URIs, listing, reading, and how resources differ from tools.

/learn/mcp-resources

MCP prompts: reusable invocation templates and how prompts differ from tools.

/learn/mcp-prompts

Sampling, capability negotiation, and the host-client-server architecture.

/learn/mcp-architecture

MCP authentication: bearer tokens, OAuth, scopes, and RBAC.

/security/authentication

MCP servers for databases: read-only access and connection security.

/guides/mcp-servers-for-databases

MCP servers that expose file system operations through tools.

/filesystem-servers

MCP servers for version control: GitHub, GitLab, and read-only repository access.

/guides/best-mcp-server-for-github

MCP servers that expose REST APIs and external services.

/api-servers

MCP servers for infrastructure, deployment, cloud, and CI/CD.

/guides/mcp-devops

MCP servers for knowledge base access and retrieval-augmented generation.

/rag-servers

MCP servers for spreadsheet and structured data manipulation.

/spreadsheet-servers

MCP servers for messaging, email, and team communication.

/communication-servers

MCP servers for calendar access and scheduling automation.

/calendar-servers

MCP servers for CRM, sales, and business workflow tools.

/crm-servers

Official and community SDKs for building MCP servers and clients.

/build/mcp-server

Boilerplate templates and starter projects for MCP servers.

/boilerplates

Tools and techniques for testing and debugging MCP servers and clients.

/testing-debugging

Validators for server.json and tool input schemas.

/schema-validators

Registries, directories, and marketplaces for MCP server discovery.

/guides/mcp-marketplaces

Command-line tools for managing MCP servers and clients.

/cli-tools

MCP support in IDEs: Cursor, VS Code, Windsurf, and others.

/clients/cursor

Proxy and gateway patterns for routing MCP traffic across multiple servers.

/proxy-gateway

Observability, tracing, and monitoring for MCP server fleets.

/observability

Deployment and hosting patterns for remote MCP servers.

/deployment

MCP security overview: threat model, authentication, tool permissions, prompt injection.

/security/mcp-security

Permissions, scoping, and least-privilege for MCP tools.

/security/tool-security

Secret management patterns for MCP server credentials and tokens.

/secret-management

Audit logging for MCP tool invocations and access events.

/audit-logging

Sandboxing and isolation patterns for running MCP servers safely.

/sandboxing

Compliance and governance frameworks for MCP deployments.

/compliance

Threat modeling for MCP-based AI agent systems.

/threat-modeling

Rate limiting and quota management for MCP server endpoints.

/rate-limiting

Identity and access management for MCP clients and servers.

/identity-access

Vulnerability scanning for MCP server implementations.

/vulnerability-scanning

Designing agentic workflows powered by MCP tools and resources.

/agentic-workflows

Multi-agent coordination patterns using MCP servers as shared tools.

/multi-agent-systems

Optimizing tool calling: schema design, batching, and error handling.

/tool-calling

Context window and resource management for MCP-driven agents.

/context-management

Evaluation and benchmarking of MCP-based AI agent systems.

/evaluation

Orchestration frameworks for managing complex MCP agent flows.

/orchestration

Memory and persistent state patterns for MCP agents.

/memory-state

Human-in-the-loop patterns for MCP-driven AI agents.

/human-in-the-loop

Autonomous agent architectures leveraging MCP servers.

/autonomous-agents

Safety and alignment considerations for MCP-based agent systems.

/ai-safety

MCP servers for software engineering: version control, databases, code tools.

/guides/mcp-servers-for-developers

MCP servers for data science: notebooks, datasets, and analysis tools.

/use-case-data-science

MCP servers for DevOps and SRE: infrastructure, monitoring, and incident response.

/use-case-devops

MCP servers for customer support: ticket systems, knowledge bases, and CRM access.

/use-case-support

MCP servers for legal and compliance: document review, policy lookup, and audit.

/use-case-legal

MCP servers for healthcare: clinical data, EHR access, and HIPAA considerations.

/use-case-healthcare

MCP servers for finance and trading: market data, broker APIs, and compliance.

/use-case-finance

MCP servers for education and research: literature search, citation tools, and tutoring.

/use-case-education

MCP servers for marketing and SEO: content analysis, keyword research, and analytics.

/use-case-marketing

MCP servers for personal productivity: documents, calendars, and task management.

/guides/mcp-productivity

Evidence-based MCP server comparisons.

/compare

MCP servers grouped by category.

/categories

MCP servers grouped by capability.

/capabilities

Step-by-step explanation of how an MCP request flows.

/learn/how-mcp-works

Real MCP use cases across workflows, databases, and automation.

/learn/mcp-use-cases

Documentation hub: reference, guides, and protocol specification links.

/docs

Decision, comparison, and troubleshooting guides.

/guides

Editorial blog: announcements, deep-dives, and ecosystem news.

/blog

The canonical 69-pillar directory for the entire authority graph.

/pillars