Claude API Blog: Tutorials, Pricing & Best Practices
Deep dives into Claude API — technical breakdowns, best practices, cost optimization tips, and real-world use cases. Written by developers, for developers.

Build Your Own MCP Server: Give Claude Direct Access to Local CSV Data
MCP (Model Context Protocol) is Anthropic's open protocol that lets Claude access local files, databases, and custom tools. In this guide, you'll build an MCP Server that allows Claude to query CSV data directly — in under 100 lines of Python, capable of answering complex data analysis questions in under 5 seconds.

Use Claude in Cursor for Free: Roo Code Plugin + ClaudeAPI Setup Guide (2026)
No Cursor Pro subscription needed. This step-by-step guide walks you through installing the Roo Code plugin, configuring your ClaudeAPI key and model — get your Claude-powered coding environment up and running in under 5 minutes.

Claude MCP in Practice: Give Your AI Agent Real Control Over Databases, Files, and APIs (Full Code Included)
Build three MCP Servers from scratch — filesystem, SQLite, and HTTP API — connect them to Claude, and create an agent that can actually do things. Complete, runnable Python code included.

Why AI Compute Costs Keep Climbing — And What Anthropic's Latest Pricing Changes Mean for Developers
A deep dive into Anthropic's 2026 enterprise pricing update: what's driving compute costs up, how it affects developers and teams, and 5 actionable strategies to keep your API bill under control.

Claude Opus 4.7 Is Coming: New Model + AI Design Tool — What's Anthropic Up To?
Anthropic is set to launch Claude Opus 4.7 and an AI design tool this week. The new model upgrades multi-step reasoning and multi-agent collaboration, while the design tool lets you build websites with plain English. Figma and other design stocks tumbled on the news.

Claude API Pricing in 2026: Complete Cost Breakdown, Token Calculator & Money-Saving Tips
The latest 2026 Claude API billing rules explained in detail. How many words can 1 million tokens actually write? Which model combination saves the most money? We break down the real cost of using Claude API and share cost-effective solutions with domestic Alipay payment to help you avoid common pitfalls.

Claude API with Python: The Complete Beginner's Guide — From Setup to Streaming Output
A hands-on walkthrough for calling the Claude API in Python. Covers installation, your first API call, multi-turn conversations, and streaming output — with fully working code and real screenshots. No VPN or proxy required.

Claude API Error Handbook (2026): How to Fix 401, 429, 529, and Other Common Failures
The 6 most common Claude API errors — with real response bodies and step-by-step fixes for Python, curl, Cherry Studio, and Cursor.

Claude Code with cc-switch: One-Click API Configuration Guide
A practical 2026 guide to using cc-switch to manage Claude Code API settings with ClaudeAPI, including import, testing, key rotation, and common commands.

Build AI Apps with Claude API + LangChain: A Complete 2026 Developer Guide
LangChain is one of the most popular frameworks for building LLM-powered applications, and Claude is widely regarded as one of the strongest models for coding and reasoning tasks. Together, they make a powerful stack for shipping everything from simple chatbots to complex AI agents. This guide walks you through 6 core use cases with LangChain + Claude API — all code is tested and ready to run (langchain-anthropic 1.4.0).

Auto-Generate Weekly Status Reports with Claude API: Drop in Some Keywords, Get a Full Report in 10 Seconds (2026)
Step-by-step guide to building a weekly report generator in Python with the Claude API. Feed it a few keywords from your week, and the AI automatically structures them into a clean, formatted status report — three output styles included. Works from anywhere without a VPN, and every code snippet runs as-is.

How to Connect Claude API in Chatbox & Cherry Studio (2026 Tested)
A step-by-step guide to configuring Claude API in both Chatbox and Cherry Studio via ClaudeAPI.com — accessible from anywhere, no VPN required. Includes real benchmark data across 5 models.