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The Wayback Machine - https://web.archive.org/web/20251126074622/https://platform.claude.com/docs/en/get-started

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Developer Guide
API Reference
MCP
Resources
Release Notes

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First steps

Intro to Claude Quickstart

Models & pricing

Models overview Choosing a model What's new in Claude 4.5 Migrating to Claude 4.5 Model deprecations Pricing

Build with Claude

Features overview Using the Messages API Context windows Prompting best practices

Capabilities

Prompt caching Context editing Extended thinking Effort Streaming Messages Batch processing Citations Multilingual support Token counting Embeddings Vision PDF support Files API Search results Structured outputs Google Sheets add-on

Tools

Overview How to implement tool use Token-efficient tool use Fine-grained tool streaming Bash tool Code execution tool Programmatic tool calling Computer use tool Text editor tool Web fetch tool Web search tool Memory tool Tool search tool

Agent Skills

Overview Quickstart Best practices Using Skills with the API

Agent SDK

Overview TypeScript SDK Python SDK Migration Guide

Guides

Streaming Input Handling Permissions Session Management Structured outputs in the SDK Hosting the Agent SDK Modifying system prompts MCP in the SDK Custom Tools Subagents in the SDK Slash Commands in the SDK Agent Skills in the SDK Tracking Costs and Usage Todo Lists Plugins in the SDK

MCP in the API

MCP connector Remote MCP servers

Claude on 3rd-party platforms

Amazon Bedrock Microsoft Foundry Vertex AI

Prompt engineering

Overview Prompt generator Use prompt templates Prompt improver Be clear and direct Use examples (multishot prompting)Let Claude think (CoT)Use XML tags Give Claude a role (system prompts)Prefill Claude's response Chain complex prompts Long context tips Extended thinking tips

Test & evaluate

Define success criteria Develop test cases Using the Evaluation Tool Reducing latency

Strengthen guardrails

Reduce hallucinations Increase output consistency Mitigate jailbreaks Streaming refusals Reduce prompt leak Keep Claude in character

Administration and monitoring

Admin API overview Usage and Cost API Claude Code Analytics API

First steps

Get started with Claude

Make your first API call to Claude and build a simple web search assistant

Prerequisites

An Anthropic Console account
An API key

Call the API

Next steps

Now that you have made your first Claude API request, it's time to explore what else is possible:

Working with Messages

Learn common patterns for the Messages API.

Features Overview

Explore Claude's advanced features and capabilities.

Discover Anthropic client libraries.

Claude Cookbook

Learn with interactive Jupyter notebooks.

Prerequisites
Call the API
Next steps

Solutions

AI agents
Code modernization
Coding
Customer support
Education
Financial services
Government
Life sciences

Partners

Amazon Bedrock
Google Cloud's Vertex AI

Learn

Blog
Catalog
Courses
Use cases
Connectors
Customer stories
Engineering at Anthropic
Events
Powered by Claude
Service partners
Startups program

Company

Anthropic
Careers
Economic Futures
Research
News
Responsible Scaling Policy
Security and compliance
Transparency

Learn

Blog
Catalog
Courses
Use cases
Connectors
Customer stories
Engineering at Anthropic
Events
Powered by Claude
Service partners
Startups program

Help and security

Availability
Status
Support
Discord

Terms and policies

Privacy policy
Responsible disclosure policy
Terms of service: Commercial
Terms of service: Consumer
Usage policy

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