---
name: mcp-server-dev
description: Reference manual for Python MCP interfaces, transports, packaging, and Codex integration. Use only when those docs are needed; it does not scaffold, validate, run, or modify an MCP server.
---

# MCP Server Manual

Read [SDK FastMCP](references/api-fastmcp-sdk.md),
[standalone FastMCP](references/api-fastmcp-standalone.md), and
[packaging and integration](references/packaging-and-integration.md) for the
relevant API and transport boundary.

This manual contains no starter project or executable validator. Treat stdio,
input bounds, and host-private data rules as reference constraints.