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Claude API Starter Kit

Production-ready templates to ship your AI product in hours, not weeks. Streaming, tools, best practices included.

// One command to start building npx create-claude-app my-ai-product // Includes streaming, tools, error handling const response = await streamChat({ messages: [{ role: "user", content: prompt }], tools: myTools, onChunk: (chunk) => handleStream(chunk) });

Streaming First

Real-time responses with proper error handling, backpressure, and reconnection logic built-in.

Tool Use Ready

Type-safe tool definitions with automatic schema validation and execution patterns.

Cost Controls

Token counting, budget limits, and usage tracking to keep your API costs predictable.

Production Patterns

Rate limiting, retry logic, error boundaries, and monitoring hooks from day one.

Multi-Model Support

Switch between Claude models easily. Haiku for speed, Opus for complex tasks.

Type Safe

Full TypeScript support with Zod schemas for runtime validation.

What's Included

Chat Application

React Streaming Markdown

Full chat UI with streaming responses, code highlighting, and conversation management.

AI Agent Framework

Tools ReAct Memory

Build autonomous agents with tool use, planning loops, and persistent memory.

RAG Pipeline

Embeddings Vector DB Chunking

Document ingestion, semantic search, and retrieval-augmented generation.

API Wrapper

Express Rate Limit Auth

Secure API proxy with authentication, rate limiting, and usage metering.

CLI Tool

Node.js Interactive Pipes

Command-line AI assistant with stdin support and scriptable output.

Batch Processor

Queue Parallel Resume

Process thousands of items with parallel execution and checkpoint recovery.

Simple Pricing

Starter

$29 one-time
  • All 6 templates
  • TypeScript source code
  • Basic documentation
  • MIT License
Get Starter

FAQ

Do I need my own Claude API key?

Yes, you'll use your own Anthropic API key. The templates help you use it efficiently and safely.

What's the tech stack?

TypeScript/Node.js for backends, React for frontends. All templates are framework-agnostic where possible.

Can I use this for commercial projects?

Yes, MIT licensed. Build and sell whatever you want with it.

How is this different from the official SDK?

The official SDK handles API calls. These templates show you how to build complete features: streaming UIs, agent loops, RAG systems, etc.