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.

Karpathy Joins Anthropic: OpenAI Co-Founder Moves to Claude as the AI Talent War Enters a New Phase
On May 19, 2026, Andrej Karpathy — OpenAI founding member, former Tesla AI lead, and the person who coined "vibe coding" — announced he's joining Anthropic to work on Claude pre-training and the autoresearch team. This post breaks down the timeline, his background, the strategic implications, and how developers can access the Claude API through claudeapi.com.

The Complete Guide to Agent Skills (Claude Code Edition): Build Your AI Agent Skill Library in 6 Steps
A complete hands-on walkthrough from installing your IDE to creating your first Agent Skill. Covers the full setup of Antigravity, Claude Code, and CC-Switch — with claudeapi.com as the API gateway to get everything running end to end.

Connect AutoClaw to claudeapi.com: Get Claude Opus 4.7 Running in Your Local Agent in 5 Minutes
A step-by-step guide to adding a custom Claude model in the AutoClaw desktop app, connecting through claudeapi.com's gateway via the native Anthropic protocol. Covers the Settings entry point, Add Custom Model form fields, Connectivity Test verification, model switching, and troubleshooting.

Claude API Streaming (SSE) in Practice: From Typewriter Effects to Complete Tool Use Workflows
Get Claude streaming responses working in Python, Node.js, and cURL — covering SSE event parsing, streaming Tool Use calls, reconnection on disconnect, frontend typewriter effects, and production-grade error handling, with complete runnable code and a pitfall checklist.

Claude Citations API in Practice: Auto-Annotated Source References That Boost RAG Accuracy by 15%
Claude Citations enables the model to precisely cite the exact document passages used in its responses, helping reduce hallucinations and improve auditability. This article provides complete code examples for three document formats: PDF, plain text, and custom documents. It also compares Claude Citations with manually prompted citations, and explains how cited_text can help reduce costs because it is not billed.

Anthropic Brings Claude Platform to AWS: Native API + Managed Agents + MCP — How It Differs from Bedrock
In May 2026, Anthropic announced the official launch of Claude Platform on AWS. AWS customers can now use IAM credentials to directly access the native Claude API, Managed Agents, MCP connectors, and the full Claude toolchain. This article breaks down how Claude Platform on AWS differs from Amazon Bedrock, which models and regions are supported, and what the launch means for developers in practice.

Anthropic May Roundup: Opus 4.7, Mythos Preview, and Agent SDK Billing Split
A clear breakdown of Anthropic’s major moves in April–May 2026: the official launch of Claude Opus 4.7, the limited research preview of Mythos Preview, separate billing for the Agent SDK, the rollout of Claude Platform on AWS, and what these changes mean for developers in China — including practical options for accessing the latest Claude models.

Swap GitHub Copilot's Built-in Model for Claude Opus 4.7: A Hands-On BYOK Guide
GitHub Copilot CLI now supports BYOK, allowing you to switch the model backend to an Anthropic-compatible endpoint. This guide walks through two complete integration paths for connecting ClaudeAPI with Copilot CLI and VS Code Chat. It covers the four core environment variables, connectivity checks, common error troubleshooting, and a quick configuration reference for developers who want to route Copilot workflows through Claude-compatible models.

OpenClaw + ClaudeAPI.com: Complete Setup Guide (About 5 Minutes)
Learn how to install OpenClaw, configure your ClaudeAPI.com API key and base URL, and connect it to platforms like Telegram and Discord—so you can build your own Claude-powered AI assistant step by step.

IntelliJ IDEA: Step-by-Step Setup with Continue and ClaudeAPI
Want to use Claude Sonnet, Opus, and other AI models directly inside IntelliJ IDEA? In this quick beginner-friendly guide, you’ll learn how to install an IntelliJ IDEA plugin, connect it to ClaudeAPI.com, and start using Claude models in your IDE in about 5 minutes. We’ll also cover common setup errors and how to fix them.

Claude Enters Legal AI: Anthropic’s MCP Push Is Rebuilding Professional Services Workflows
Anthropic has launched 20+ MCP connectors and 12 legal-domain plugins, integrating Claude with core legal platforms such as Westlaw, DocuSign, Everlaw, and Harvey. The move signals a broader shift: Claude is evolving from a general-purpose AI assistant into foundational infrastructure for legal industry workflows.

Code with Claude Conference Recap: Managed Agents, SpaceX Compute, and Doubled Claude Code Limits
On May 6, 2026, Anthropic hosted its Code with Claude developer event and shifted the focus from “new model hype” to production-ready AI agents. The company announced 15+ updates, including Claude Managed Agents with Dreaming, Outcomes, and multi-agent orchestration; doubled Claude Code five-hour limits; higher API rate limits; and a major compute partnership with SpaceX. This roundup breaks down the key announcements and what they mean for developers building with Claude.