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Understanding the mCP Model Context Protocol

Mar 12, 2025

Lecture Notes: mCP Model Context Protocol

Introduction

  • Speaker: Mahes from the Applied AI team at Anthropic.
  • Topic: mCP (Model Context Protocol).
  • Format: Interactive talk with Q&A.

Overview of mCP

  • mCP is a protocol designed to improve AI applications by standardizing how they interact with external systems.
  • Motivation: Enhance model performance by providing rich, personalized context.
  • Context evolution: From manual input to seamless data integration.
  • Inspiration: APIs and LSP (Language Server Protocol).
  • mCP Structure: Interfaces for prompts, tools, and resources.

Pre-mCP Landscape

  • Fragmentation in AI system development.
  • Custom implementations within and across companies leading to inefficiencies.

Benefits of mCP

  • For Developers: Easier integration across AI apps with a standardized protocol.
  • For Enterprises: Centralized resource management and faster development.
  • For End Users: Enhanced AI capabilities with richer context.

Main Components of mCP

  • Tools: Model-controlled actions that can fetch, write, or manipulate data.
  • Resources: Data resources controlled by the application; can be static or dynamic.
  • Prompts: User-controlled interaction templates.

Adoption and Use Cases

  • Current Use: Applications like IDEs and servers; notable examples include Cloudflare and Stripe.
  • Community Engagement: Over 1100 community-built servers.
  • Examples in use: Cloud for desktop connecting with GitHub and Asana servers for integrated task management.

mCP and Agents

  • Agent Systems: Running loops involving tools, retrieval systems, and memory for intelligent task execution.
  • mCP as a Foundation: Facilitates seamless access to tools and resources for agent systems.

Building with mCP

  • Client and Server Roles: Logical, not physical separations; a system can be both.
  • Composability: Allows layering of AI systems through client-server chains.
  • Sampling: Servers can request completions from clients, enhancing autonomy and task flexibility.

Roadmap and Future Developments

  • Remote Servers and OAuth: Supporting remote server interactions and secure authentication.
  • Registry Development: A centralized place to discover and verify mCP servers.
  • Well-Known URLs: For top-down discovery of mCP capabilities, enhancing public server utility.
  • Advanced Protocol Features: Considering stateful vs stateless connections, streaming, and proactive server behavior.

Conclusion

  • mCP aims to revolutionize AI applications by improving how they integrate with and utilize external systems, paving the way for more efficient and effective AI-driven solutions.