# MCP Protocol and Specification

Use this page for authoritative links about MCP concepts, protocol shape, and official specification assets.

## Official Documentation

!!! info "MCP docs"
    - [MCP introduction](https://modelcontextprotocol.io/docs/getting-started/intro)
    - [Architecture overview](https://modelcontextprotocol.io/docs/learn/architecture)
    - [Server concepts](https://modelcontextprotocol.io/docs/learn/server-concepts)
    - [Client concepts](https://modelcontextprotocol.io/docs/learn/client-concepts)
    - [Security overview](https://modelcontextprotocol.io/docs/learn/security-overview)

## Protocol and Schema Sources

!!! info "Specification repositories"
    - [MCP specification repository](https://github.com/modelcontextprotocol/spec)
    - [Specification schema directory](https://github.com/modelcontextprotocol/spec/tree/main/schema)
    - [Specification issues and proposals](https://github.com/modelcontextprotocol/spec/issues)

## Core Capability References

!!! info "Capability details"
    - [Resources concept docs](https://modelcontextprotocol.io/docs/learn/server-concepts#resources)
    - [Tools concept docs](https://modelcontextprotocol.io/docs/learn/server-concepts#tools)
    - [Prompt objects concept docs](https://modelcontextprotocol.io/docs/learn/server-concepts#prompts)
    - [Sampling concept docs](https://modelcontextprotocol.io/docs/learn/client-concepts)

## Notes

- Prefer these links when the user asks about protocol correctness, transport semantics, capability naming, or compatibility.
- For implementation-level examples, use [sdk-and-fastmcp.md](./sdk-and-fastmcp.md).