MCP
How to Add an MCP Server to Claude Desktop (2026)
The exact claude_desktop_config.json setup to connect a local MCP server to Claude Desktop, verify it with the MCP Inspector, and fix a server that will not show up.
8 min read84
Tag
#mcp
6 posts tagged.
AI agents
Remote MCP Server Tutorial (2026): Serve Tools over Streamable HTTP
A runnable 2026 tutorial for turning a local MCP server into a remote one over Streamable HTTP. Serve tools with FastMCP, test the endpoint with curl and MCP Inspector, validate the Origin header, add a bearer token, then connect Claude. Covers the Mcp-Session-Id requirement and the DNS-rebinding gotcha the docs warn about but most walkthroughs skip.
9 min read96
AI agents
Claude Agent SDK Custom Tools: Give Your Agent Its Own Functions (2026)
A runnable 2026 guide to custom tools in the Claude Agent SDK: define functions with tool() / @tool, bundle them into an in-process MCP server, register with allowedTools, and gate risky calls per argument with canUseTool. TypeScript and Python.
7 min read76
From scratch
How to Build an AI Agent With the Claude Agent SDK in Python (2026)
A runnable Python quickstart: install the Claude Agent SDK, stream a run with query(), then give the agent your own tools with the @tool decorator and ClaudeSDKClient. Builds a weather agent that chains two tools.
6 min read68
From scratch
Build an AI Agent with the Claude Agent SDK in TypeScript (2026)
A runnable 2026 quickstart: install the Claude Agent SDK, wire a custom tool with tool() and createSdkMcpServer(), and let the agent loop call it for you in about 40 lines of TypeScript.
5 min read51
MCP servers
How to Build an MCP Server (2026): Your First Server, Wired to Claude
The Model Context Protocol (MCP) is a standard way to expose tools to any MCP-capable client, Claude Desktop, IDEs, or your own agents, so you write an integration once and reuse it everywhere. In this tutorial you build an MCP server in TypeScript that exposes a single typed tool over the stdio transport, test it with the MCP Inspector, then register it with Claude and call it from a real conversation. You will also learn the one rule that trips up everyone on stdio: never write to stdout. By the end you have a reusable server you can extend with your own tools.
5 min read122