Claude API Guides

Step-by-step tutorials to help you build with the Anthropic Claude API. From first call to production deployment.

Claude API Quickstart Guide — Python, JavaScript & cURL Examples

Complete tutorial covering API key setup, first API call, model selection, streaming, tool use, vision, error handling, rate limits, and production best practices.

15 min read

Batch API Throughput Planner — Queue Management & Code Generator

Plan Claude Batch API workloads with queue visualization. Calculate optimal batch sizes, estimate completion times, configure retry strategies, and generate production-ready Python and JavaScript code.

Claude Testing Framework — Prompt Regression Testing & Eval Harness Builder

Build prompt regression tests and evaluation harnesses for Claude. Define test cases with expected outputs, run evaluations with pass/fail scoring, detect regressions across model versions, and export test suites as c...

Claude API Streaming Responses Guide — Interactive Demo & Code Generator

Learn how to implement Claude API streaming responses. Interactive demo simulates real-time token delivery. Generate production streaming code in Python, JavaScript, and curl with event handling and error recovery.

Claude Structured Outputs Guide — JSON, XML & Tool Use Patterns

Master structured outputs from the Claude API: JSON via tool use, XML extraction, YAML generation, and schema validation. Live tester with 10 pre-built templates and a code generator for Python, JavaScript, and curl.

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