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    <title>Claude API Cookbook</title>
    <link>https://claude-api-cookbook.vercel.app/</link>
    <description>Practical 2026 reference for Anthropic API cost, pricing, and tier selection. 58 articles covering Claude Opus, Sonnet, Haiku pricing, prompt caching, batch API, and model selection.</description>
    <language>en-us</language>
    <lastBuildDate>Wed, 13 May 2026 04:00:00 +0000</lastBuildDate>
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    <item>
      <title><![CDATA[Claude Opus 4.7 vs Sonnet 4.6 Pricing (2026 Comparison)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-opus-4-vs-sonnet-4-pricing/</link>
      <description><![CDATA[Side-by-side Anthropic API pricing for Claude Opus 4.7 and Sonnet 4.6 in 2026. Per-token cost, cache savings, and when each tier pays off.]]></description>
      <pubDate>Tue, 12 May 2026 08:00:00 +0000</pubDate>
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    <item>
      <title><![CDATA[How Much Does Claude Cost? (2026 API Pricing Guide)]]></title>
      <link>https://claude-api-cookbook.vercel.app/how-much-does-claude-cost/</link>
      <description><![CDATA[Complete breakdown of Claude API costs in 2026: Opus, Sonnet, Haiku pricing per token, prompt caching savings, and batch API discounts.]]></description>
      <pubDate>Tue, 12 May 2026 08:10:00 +0000</pubDate>
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    <item>
      <title><![CDATA[Claude Prompt Caching: 90% Cost Savings Explained (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-prompt-caching-explained/</link>
      <description><![CDATA[How Claude's prompt caching works in 2026: what gets cached, the 5-minute TTL, cost math, and when caching breaks even.]]></description>
      <pubDate>Tue, 12 May 2026 08:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-prompt-caching-explained/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Cost Calculator: Estimate Your Anthropic Bill]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-cost-calculator-guide/</link>
      <description><![CDATA[Estimate your Anthropic API bill: input tokens, output tokens, cache hits, batch discount, across Opus 4.7, Sonnet 4.6, and Haiku 4.5.]]></description>
      <pubDate>Tue, 12 May 2026 08:30:00 +0000</pubDate>
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    <item>
      <title><![CDATA[Claude vs GPT-4 Pricing: 2026 API Cost Comparison]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-vs-gpt-4-pricing-2026/</link>
      <description><![CDATA[Apples-to-apples 2026 API pricing comparison: Claude Opus 4.7 vs GPT-4o, Sonnet 4.6 vs GPT-4o mini, with quick break-even math.]]></description>
      <pubDate>Tue, 12 May 2026 08:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-vs-gpt-4-pricing-2026/</guid>
    </item>
    <item>
      <title><![CDATA[Anthropic API Pricing 2026: Full Cost Reference]]></title>
      <link>https://claude-api-cookbook.vercel.app/anthropic-api-pricing-2026/</link>
      <description><![CDATA[Complete 2026 Anthropic API price list: every model, every token type, plus batch and cache discounts.]]></description>
      <pubDate>Tue, 12 May 2026 08:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/anthropic-api-pricing-2026/</guid>
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    <item>
      <title><![CDATA[How to Reduce Claude API Costs: 7 Proven Levers (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/how-to-reduce-claude-api-costs/</link>
      <description><![CDATA[Seven concrete techniques to cut your Anthropic API bill 50-90%: caching, routing, batch, structured output, retries, eval, and context pruning.]]></description>
      <pubDate>Tue, 12 May 2026 09:00:00 +0000</pubDate>
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    <item>
      <title><![CDATA[Claude Batch API: 50% Off Anthropic Pricing (2026 Guide)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-batch-api-savings/</link>
      <description><![CDATA[How the Anthropic Batch API works, the 24-hour SLA, the 50% pricing discount, and the workload patterns where it pays off.]]></description>
      <pubDate>Tue, 12 May 2026 09:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-batch-api-savings/</guid>
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    <item>
      <title><![CDATA[Claude Haiku 4.5 Pricing: $1/M Input, $5/M Output]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-haiku-4-5-pricing/</link>
      <description><![CDATA[Anthropic Haiku 4.5 pricing: $1 per million input tokens, $5 per million output, plus cache and batch rates. Where Haiku makes sense.]]></description>
      <pubDate>Tue, 12 May 2026 09:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-haiku-4-5-pricing/</guid>
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    <item>
      <title><![CDATA[Claude Sonnet 4.6 Pricing: $3/M Input, $15/M Output]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-sonnet-4-6-pricing/</link>
      <description><![CDATA[Anthropic Sonnet 4.6 pricing breakdown: $3/M input, $15/M output, cache and batch rates, and the 80/20 of when Sonnet wins.]]></description>
      <pubDate>Tue, 12 May 2026 09:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-sonnet-4-6-pricing/</guid>
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    <item>
      <title><![CDATA[Claude Opus 4.7 Pricing: $15/M Input, $75/M Output]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-opus-4-7-pricing/</link>
      <description><![CDATA[Claude Opus 4.7 API pricing: $15 per million input tokens, $75 per million output. When the most-capable tier earns its premium.]]></description>
      <pubDate>Tue, 12 May 2026 09:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-opus-4-7-pricing/</guid>
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    <item>
      <title><![CDATA[Claude Models Compared: Opus 4.7 vs Sonnet 4.6 vs Haiku 4.5]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-models-comparison/</link>
      <description><![CDATA[Side-by-side comparison of all three Claude tiers in 2026: capability, latency, context window, and pricing.]]></description>
      <pubDate>Tue, 12 May 2026 09:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-models-comparison/</guid>
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    <item>
      <title><![CDATA[Claude Extended Thinking: How It's Billed (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-extended-thinking-pricing/</link>
      <description><![CDATA[How Claude's extended-thinking mode is priced: thinking tokens count as output, plus when the latency and cost trade is worth it.]]></description>
      <pubDate>Tue, 12 May 2026 10:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-extended-thinking-pricing/</guid>
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    <item>
      <title><![CDATA[When to Use Claude Opus vs Sonnet: A Decision Guide]]></title>
      <link>https://claude-api-cookbook.vercel.app/when-to-use-claude-opus-vs-sonnet/</link>
      <description><![CDATA[Practical guide to choosing between Claude Opus 4.7 and Sonnet 4.6: workload patterns where each tier wins, with cost math.]]></description>
      <pubDate>Tue, 12 May 2026 10:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/when-to-use-claude-opus-vs-sonnet/</guid>
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    <item>
      <title><![CDATA[Claude Skills vs Tools: What's the Difference? (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-skills-vs-tools/</link>
      <description><![CDATA[Anthropic Skills and Tools both extend Claude's capabilities, but they work differently. When to reach for each, and how to browse what's available.]]></description>
      <pubDate>Tue, 12 May 2026 10:20:00 +0000</pubDate>
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    <item>
      <title><![CDATA[Claude Sonnet 4.6 vs Haiku 4.5: When to Use Each]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-sonnet-vs-haiku-when-to-use/</link>
      <description><![CDATA[Decision guide for choosing between Claude Sonnet 4.6 and Haiku 4.5 in 2026. Per-token cost, latency, quality, and concrete workload examples.]]></description>
      <pubDate>Tue, 12 May 2026 10:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-sonnet-vs-haiku-when-to-use/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Opus 4.7 vs Sonnet 4.6 for Coding: Which to Pick?]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-opus-vs-sonnet-for-coding/</link>
      <description><![CDATA[How Claude Opus 4.7 and Sonnet 4.6 compare on code generation, refactoring, and code review in 2026. Cost-per-PR analysis with real benchmarks.]]></description>
      <pubDate>Tue, 12 May 2026 10:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-opus-vs-sonnet-for-coding/</guid>
    </item>
    <item>
      <title><![CDATA[Anthropic API vs OpenAI API: 2026 Pricing Comparison]]></title>
      <link>https://claude-api-cookbook.vercel.app/anthropic-api-vs-openai-api-pricing/</link>
      <description><![CDATA[Side-by-side pricing comparison of Anthropic's Claude API and OpenAI's API in 2026. Per-tier costs, cache discounts, batch savings, and which to pick.]]></description>
      <pubDate>Tue, 12 May 2026 10:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/anthropic-api-vs-openai-api-pricing/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Prompt Caching vs Batch API: Which Saves More?]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-prompt-caching-vs-batch-api-savings/</link>
      <description><![CDATA[Compare Claude's two main cost-reduction features: prompt caching (90% off cached reads) and the Batch API (50% off everything). When each pays off.]]></description>
      <pubDate>Tue, 12 May 2026 11:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-prompt-caching-vs-batch-api-savings/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Extended Thinking vs Standard Mode: When to Enable]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-extended-thinking-vs-standard-mode/</link>
      <description><![CDATA[When to enable Claude's extended-thinking mode vs standard inference. Cost, latency, and quality tradeoffs with concrete examples.]]></description>
      <pubDate>Tue, 12 May 2026 11:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-extended-thinking-vs-standard-mode/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Tools vs MCP: Which Should You Use?]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-tools-vs-mcp-which-to-use/</link>
      <description><![CDATA[When to use Claude's built-in tool calling vs Model Context Protocol (MCP) servers. Architecture, ergonomics, and concrete use cases.]]></description>
      <pubDate>Tue, 12 May 2026 11:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-tools-vs-mcp-which-to-use/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Cost Per Million Tokens: What You Actually Pay]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-cost-per-million-tokens-explained/</link>
      <description><![CDATA[What 'cost per million tokens' actually means for the Claude API. Per-tier breakdown, output multipliers, and a worked example.]]></description>
      <pubDate>Tue, 12 May 2026 11:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-cost-per-million-tokens-explained/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Streaming vs Non-Streaming: Which API Mode?]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-streaming-vs-non-streaming-which-to-use/</link>
      <description><![CDATA[When to use Claude's streaming API vs the standard request-response mode. Latency, complexity, and cost implications.]]></description>
      <pubDate>Tue, 12 May 2026 11:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-streaming-vs-non-streaming-which-to-use/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API vs Self-Hosted Llama: 2026 Cost Tradeoffs]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-vs-self-hosted-llama-cost-tradeoffs/</link>
      <description><![CDATA[When self-hosting an open-weights model like Llama saves money vs paying for the Claude API. Break-even math, GPU costs, and hidden expenses.]]></description>
      <pubDate>Tue, 12 May 2026 11:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-vs-self-hosted-llama-cost-tradeoffs/</guid>
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    <item>
      <title><![CDATA[Claude API Rate Limits Explained (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-rate-limits-vs-tier-explained/</link>
      <description><![CDATA[How Claude API rate limits work in 2026: per-minute token limits, per-day request limits, and how usage tiers level up automatically.]]></description>
      <pubDate>Tue, 12 May 2026 12:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-rate-limits-vs-tier-explained/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Code Cost Per Session: What You Actually Pay (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-code-cost-per-session/</link>
      <description><![CDATA[How much does Claude Code cost per session, per day, and per month? Real cost breakdowns with cache savings, plus a free calculator.]]></description>
      <pubDate>Tue, 12 May 2026 12:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-code-cost-per-session/</guid>
    </item>
    <item>
      <title><![CDATA[AI Git Diff Summary Tool — Free, Private, No Signup]]></title>
      <link>https://claude-api-cookbook.vercel.app/ai-git-diff-summary-tool/</link>
      <description><![CDATA[Paste any git diff and get a plain-English summary, PR description, or commit message in seconds. Free, runs in your browser, BYO API key.]]></description>
      <pubDate>Tue, 12 May 2026 12:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/ai-git-diff-summary-tool/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Token Counter & Cost Estimator (Free, 2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-token-counter/</link>
      <description><![CDATA[Count tokens in any Claude prompt and estimate the API cost across Opus 4.7, Sonnet 4.6, and Haiku 4.5. Free, runs in your browser.]]></description>
      <pubDate>Tue, 12 May 2026 12:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-token-counter/</guid>
    </item>
    <item>
      <title><![CDATA[How to Get a Claude API Key (Anthropic API Setup 2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-key-setup/</link>
      <description><![CDATA[Step-by-step guide to getting an Anthropic API key in 2026: account setup, free tier limits, rate-limit tiers, and first API call.]]></description>
      <pubDate>Tue, 12 May 2026 12:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-key-setup/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Python SDK Quickstart (Anthropic API 2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-python-sdk-quickstart/</link>
      <description><![CDATA[Get started with the Anthropic Python SDK in 2026: install, send messages, stream responses, use prompt caching, and estimate costs.]]></description>
      <pubDate>Tue, 12 May 2026 12:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-python-sdk-quickstart/</guid>
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    <item>
      <title><![CDATA[Claude Context Window Explained (200K Tokens in 2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-context-window-explained/</link>
      <description><![CDATA[How Claude's 200K context window works in 2026: what fits, token counting, cost implications, and strategies for long-context workloads.]]></description>
      <pubDate>Tue, 12 May 2026 13:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-context-window-explained/</guid>
    </item>
    <item>
      <title><![CDATA[Claude Tool Use Pricing — Function Calling Costs (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-tool-use-pricing/</link>
      <description><![CDATA[How Claude's tool use (function calling) affects API costs in 2026: tool definition tokens, result tokens, multi-turn overhead, and cost-reduction strategies.]]></description>
      <pubDate>Tue, 12 May 2026 13:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-tool-use-pricing/</guid>
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    <item>
      <title><![CDATA[Claude API JavaScript Guide (2026) — Node.js & Browser Examples]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-javascript/</link>
      <description><![CDATA[Complete guide to using the Claude API with JavaScript in 2026. Node.js quickstart, streaming, tool use, and prompt caching code examples using the official Anthropic SDK.]]></description>
      <pubDate>Tue, 12 May 2026 13:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-javascript/</guid>
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    <item>
      <title><![CDATA[Claude Streaming TypeScript — Real-Time API Responses (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-streaming-typescript/</link>
      <description><![CDATA[How to stream Claude API responses in TypeScript using the Anthropic SDK. Includes typed event handlers, SSE parsing, Next.js integration, and error handling patterns.]]></description>
      <pubDate>Tue, 12 May 2026 13:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-streaming-typescript/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Node.js Streaming — Complete 2026 Examples]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-nodejs-streaming/</link>
      <description><![CDATA[Node.js code examples for streaming Claude API responses. Covers basic SSE streaming, Express integration, error handling, and token-by-token output using @anthropic-ai/sdk.]]></description>
      <pubDate>Tue, 12 May 2026 13:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-nodejs-streaming/</guid>
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    <item>
      <title><![CDATA[Anthropic TypeScript SDK — Full API Reference & Examples (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-typescript-sdk/</link>
      <description><![CDATA[Complete reference for @anthropic-ai/sdk in TypeScript. Types, configuration, messages API, streaming, tool use, prompt caching, and error handling with full code examples.]]></description>
      <pubDate>Tue, 12 May 2026 13:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-typescript-sdk/</guid>
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    <item>
      <title><![CDATA[Claude Vision API: Image Analysis with Python & Node.js (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-vision-multimodal/</link>
      <description><![CDATA[Send images to Claude using the Anthropic API. Python and Node.js examples for base64 images, URLs, PDFs, and multi-image analysis. Works with Sonnet 4.6 and Haiku 4.5.]]></description>
      <pubDate>Tue, 12 May 2026 14:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-vision-multimodal/</guid>
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    <item>
      <title><![CDATA[Claude API Structured Output: Get JSON from Claude (Python & Node.js)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-structured-output/</link>
      <description><![CDATA[Force Claude to return valid JSON using tool use or system prompts. Python and Node.js examples for structured output, schemas, and parsing. Works with all Claude 4 models.]]></description>
      <pubDate>Tue, 12 May 2026 14:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-structured-output/</guid>
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    <item>
      <title><![CDATA[Claude API Error Handling & Retry Logic (Python & Node.js)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-error-handling-retry/</link>
      <description><![CDATA[Handle Anthropic API errors correctly: rate limits (529), overload (529), timeouts, and auth errors. Python and Node.js retry patterns with exponential backoff.]]></description>
      <pubDate>Tue, 12 May 2026 14:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-error-handling-retry/</guid>
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    <item>
      <title><![CDATA[Claude API Async Python: AsyncAnthropic Client & asyncio Patterns]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-async-python/</link>
      <description><![CDATA[Use AsyncAnthropic to call Claude in async Python applications. Concurrent requests with asyncio.gather, async streaming, FastAPI integration, and performance tips.]]></description>
      <pubDate>Tue, 12 May 2026 14:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-async-python/</guid>
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    <item>
      <title><![CDATA[Claude API Conversation History: Multi-Turn Chat Tutorial]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-conversation-history/</link>
      <description><![CDATA[How to implement multi-turn conversation history with the Claude API. Maintain context, manage token limits, and avoid common mistakes in Python and JavaScript.]]></description>
      <pubDate>Tue, 12 May 2026 14:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-conversation-history/</guid>
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    <item>
      <title><![CDATA[Claude API Tool Use (Function Calling) — Complete Guide]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-tool-use-function-calling/</link>
      <description><![CDATA[How to use Claude's tool use (function calling) API. Define tools in JSON schema, handle tool_use responses, and close the loop in Python and JavaScript.]]></description>
      <pubDate>Tue, 12 May 2026 14:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-tool-use-function-calling/</guid>
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    <item>
      <title><![CDATA[Claude Files API: Upload and Reuse Files Across Requests]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-files-api-upload/</link>
      <description><![CDATA[How to use Anthropic's Files API to upload documents, images, and PDFs once and reference them across multiple Claude API requests. Python and TypeScript examples.]]></description>
      <pubDate>Tue, 12 May 2026 15:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-files-api-upload/</guid>
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    <item>
      <title><![CDATA[Claude API Cost Optimization Checklist (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-cost-optimization-2026/</link>
      <description><![CDATA[A 2026 checklist for cutting Claude API spend: caching, routing, batch, prompt compression, output budgets, and live cost monitoring — with code.]]></description>
      <pubDate>Tue, 12 May 2026 15:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-cost-optimization-2026/</guid>
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    <item>
      <title><![CDATA[Claude API Production Checklist (2026): 18 Items Before You Ship]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-production-checklist/</link>
      <description><![CDATA[18 concrete items to verify before shipping a Claude API integration to production: keys, retries, caching, observability, fallbacks, and cost guardrails.]]></description>
      <pubDate>Tue, 12 May 2026 15:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-production-checklist/</guid>
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    <item>
      <title><![CDATA[Claude API Enterprise Pricing in 2026: Tiers, Volume Discounts, Commit]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-enterprise-pricing/</link>
      <description><![CDATA[How Anthropic structures enterprise pricing for Claude in 2026: usage tiers, committed-spend discounts, dedicated capacity, SLAs, and what to negotiate.]]></description>
      <pubDate>Tue, 12 May 2026 15:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-enterprise-pricing/</guid>
    </item>
    <item>
      <title><![CDATA[Best Claude API Wrapper Libraries (2026): SDKs, Frameworks, Toolkits]]></title>
      <link>https://claude-api-cookbook.vercel.app/best-claude-api-wrapper-libraries/</link>
      <description><![CDATA[Comparison of Claude API wrapper libraries and frameworks in 2026: official SDKs, LangChain, LlamaIndex, Instructor, Vercel AI SDK, and when to pick which.]]></description>
      <pubDate>Tue, 12 May 2026 15:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/best-claude-api-wrapper-libraries/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Error 529 (Overloaded): Why It Happens and How to Handle It]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-error-529-overloaded/</link>
      <description><![CDATA[What HTTP 529 means on the Anthropic API, why it spikes during peak hours, and the retry, fallback, and routing patterns that keep your service up.]]></description>
      <pubDate>Tue, 12 May 2026 15:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-error-529-overloaded/</guid>
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    <item>
      <title><![CDATA[Claude API Caching Strategies: 5 Patterns That Cut Costs 70-95%]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-caching-strategies/</link>
      <description><![CDATA[Five production prompt-caching patterns for the Claude API: system-prompt caching, document caching, conversation caching, tool caching, and tiered caching.]]></description>
      <pubDate>Tue, 12 May 2026 16:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-caching-strategies/</guid>
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    <item>
      <title><![CDATA[Claude API Batch vs Streaming: Cost, Latency, and When to Pick Each]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-batch-vs-streaming-cost/</link>
      <description><![CDATA[Side-by-side comparison of Claude API batch and streaming modes in 2026: per-token cost, latency profile, throughput, and the workloads each one fits.]]></description>
      <pubDate>Tue, 12 May 2026 16:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-batch-vs-streaming-cost/</guid>
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    <item>
      <title><![CDATA[Claude API Budget Tracking in 2026: Logs, Dashboards, and Alerts]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-budget-tracking/</link>
      <description><![CDATA[How to track Claude API spend in production: per-request token logging, daily aggregation, per-user attribution, alert thresholds, and a reference dashboard.]]></description>
      <pubDate>Tue, 12 May 2026 16:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-budget-tracking/</guid>
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    <item>
      <title><![CDATA[Claude Computer Use API (2026 Guide — Screenshots, Clicks & Automation)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-computer-use-api/</link>
      <description><![CDATA[Complete guide to Anthropic's Claude computer use API in 2026. Learn how to pass screenshots, handle tool calls, and build desktop/web automation pipelines with Claude.]]></description>
      <pubDate>Tue, 12 May 2026 16:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-computer-use-api/</guid>
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    <item>
      <title><![CDATA[Claude API Parallel Requests: Concurrency, Rate Limits & Queue Patterns (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-parallel-requests/</link>
      <description><![CDATA[How to run multiple Claude API requests concurrently in Python and TypeScript. Covers asyncio, Promise.all, rate-limit handling, and queue-based concurrency patterns for Anthropic's API.]]></description>
      <pubDate>Tue, 12 May 2026 16:40:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-parallel-requests/</guid>
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    <item>
      <title><![CDATA[Can You Fine-Tune Claude? Anthropic API Custom Training (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-fine-tuning/</link>
      <description><![CDATA[Does Anthropic support Claude fine-tuning? Learn what custom training options exist in 2026, what to use instead, and how to get Claude to behave consistently without fine-tuning.]]></description>
      <pubDate>Tue, 12 May 2026 16:50:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-fine-tuning/</guid>
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    <item>
      <title><![CDATA[Claude API 429 Rate Limit: Backoff, Retry, and Survival (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-429-rate-limit-handling/</link>
      <description><![CDATA[How to handle HTTP 429 from the Claude API in production. Exponential backoff, retry-after, jitter, and the patterns that keep your traffic flowing without DDoSing yourself.]]></description>
      <pubDate>Tue, 12 May 2026 17:00:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-429-rate-limit-handling/</guid>
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    <item>
      <title><![CDATA[Claude API Webhooks: Async Callbacks for Batch and Long Jobs (2026)]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-api-webhooks/</link>
      <description><![CDATA[How to use webhooks with the Anthropic API in 2026. Cover the Batch API callback flow, verifying webhook signatures, and a complete Express/Flask receiver pattern.]]></description>
      <pubDate>Tue, 12 May 2026 17:10:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-api-webhooks/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Go SDK: Quickstart for 2026]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-go-sdk-quickstart/</link>
      <description><![CDATA[How to call the Claude API from Go in 2026. Covers the official SDK, streaming, prompt caching, tool use, and concurrency patterns for production Go services.]]></description>
      <pubDate>Tue, 12 May 2026 17:20:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-go-sdk-quickstart/</guid>
    </item>
    <item>
      <title><![CDATA[Claude API Ruby SDK: Quickstart for 2026]]></title>
      <link>https://claude-api-cookbook.vercel.app/claude-ruby-sdk-quickstart/</link>
      <description><![CDATA[Calling the Claude API from Ruby in 2026 — the official anthropic gem, streaming, prompt caching, tool use, and how to integrate with Rails background jobs.]]></description>
      <pubDate>Tue, 12 May 2026 17:30:00 +0000</pubDate>
      <guid isPermaLink="true">https://claude-api-cookbook.vercel.app/claude-ruby-sdk-quickstart/</guid>
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