741 pages for description.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
prompting-claude-opus-4-8
Claude Developer Platform · in the page
build-with-claude/prompt-engineering/prompting-claude-opus-4-8
…ocs/en/build-with-claude/prompt-engineering/prompting-claude-opus-4-8 description: Behavioral differences and prompting patterns for Claude Opus 4.8, covering verbosity, effort calibration, tool use,…
prompting-claude-opus-5
Claude Developer Platform · in the page
build-with-claude/prompt-engineering/prompting-claude-opus-5
…/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5 description: Behavioral differences and prompting patterns for Claude Opus 5, covering response verbosity, agentic narration, task…
prompting-claude-opus-5-5
Claude Developer Platform · in the page
build-with-claude/prompt-engineering/prompting-claude-opus-5-5
…ocs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5-5 description: "Behavioral differences from Claude Opus 5 and the prompting and harness patterns that address them: effort calibrati…
prompting-claude-sonnet-5
Claude Developer Platform · in the page
build-with-claude/prompt-engineering/prompting-claude-sonnet-5
…ocs/en/build-with-claude/prompt-engineering/prompting-claude-sonnet-5 description: Behavioral differences and prompting patterns for Claude Sonnet 5, covering effort, adaptive thinking defaults, and t…
prompting-claude-sonnet-5-5
Claude Developer Platform · in the page
build-with-claude/prompt-engineering/prompting-claude-sonnet-5-5
…s/en/build-with-claude/prompt-engineering/prompting-claude-sonnet-5-5 description: "Prompting patterns specific to Claude Sonnet 5.5: effort, initiative and scope, running without up-front thinking, J…
refusals-and-fallback
Claude Developer Platform · in the page
build-with-claude/refusals-and-fallback
…//platform.claude.com/docs/en/build-with-claude/refusals-and-fallback description: How Claude Fable models, Claude Opus models, and Claude Sonnet 5.5 return classifier refusals and how to retry refuse…
search-results
Claude Developer Platform · in the page
build-with-claude/search-results
…https://platform.claude.com/docs/en/build-with-claude/search-results description: Enable natural citations for RAG applications by providing search results with source attribution --- <Note> To le…
skills-guide
Claude Developer Platform · in the page
build-with-claude/skills-guide
…l: https://platform.claude.com/docs/en/build-with-claude/skills-guide description: Learn how to use Agent Skills to extend Claude's capabilities through the API. --- Agent Skills extend Claude's capa…
streaming
Claude Developer Platform · in the page
build-with-claude/streaming
…url: https://platform.claude.com/docs/en/build-with-claude/streaming description: Stream Messages API responses incrementally with server-sent events, including text, tool use, and extended thinking…
structured-outputs
Claude Developer Platform · in the page
build-with-claude/structured-outputs
…ps://platform.claude.com/docs/en/build-with-claude/structured-outputs description: Get validated JSON results from agent workflows featureMetadata: status: ga zdr: eligibility: eligible no…
task-budgets
Claude Developer Platform · in the page
build-with-claude/task-budgets
…l: https://platform.claude.com/docs/en/build-with-claude/task-budgets description: Give Claude an advisory token budget for the full agentic loop to help the model self-regulate on long agentic tasks.…
thinking
Claude Developer Platform · in the page
build-with-claude/thinking
…g url: https://platform.claude.com/docs/en/build-with-claude/thinking description: "Understand how Claude's thinking works: turn it on, read thinking output, steer thinking depth with effort, and use…
thinking-steering-and-cost
Claude Developer Platform · in the page
build-with-claude/thinking-steering-and-cost
…tform.claude.com/docs/en/build-with-claude/thinking-steering-and-cost description: Steer how often and how deeply Claude thinks with effort levels, system prompt guidance, and per-message steering, an…
thinking-tool-workflows
Claude Developer Platform · in the page
build-with-claude/thinking-tool-workflows
…platform.claude.com/docs/en/build-with-claude/thinking-tool-workflows description: Walk through a complete two-turn tool-use round trip that preserves thinking blocks correctly, and see how interleave…
thinking-troubleshooting
Claude Developer Platform · in the page
build-with-claude/thinking-troubleshooting
…latform.claude.com/docs/en/build-with-claude/thinking-troubleshooting description: "Diagnose and fix the most common thinking failures: configuration 400 errors, empty or missing thinking blocks, max_…
token-counting
Claude Developer Platform · in the page
build-with-claude/token-counting
…https://platform.claude.com/docs/en/build-with-claude/token-counting description: Count the tokens in a message before you send it to Claude. Use token counts to manage rate limits and costs, make mo…
vision
Claude Developer Platform · in the page
build-with-claude/vision
…ion url: https://platform.claude.com/docs/en/build-with-claude/vision description: Claude's vision capabilities allow it to understand and analyze images, opening up exciting possibilities for multimo…
vision-coordinates
Claude Developer Platform · in the page
build-with-claude/vision-coordinates
…ps://platform.claude.com/docs/en/build-with-claude/vision-coordinates description: How Claude resizes images, and how to work with the pixel coordinates it returns for bounding boxes, points, and UI e…
working-with-messages
Claude Developer Platform · in the page
build-with-claude/working-with-messages
…//platform.claude.com/docs/en/build-with-claude/working-with-messages description: Practical patterns and examples for using the Messages API effectively --- Anthropic offers two ways to build with C…
API usage primer for Claude
Claude Developer Platform · in the page
claude_api_primer
…for Claude url: https://platform.claude.com/docs/en/claude_api_primer description: This guide is designed to give Claude the basics of using the Claude API. It gives explanation and examples of model…
apply
Claude Developer Platform · in the page
cli-sdks-libraries/cli/apply
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/cli/apply description: Declare agents, environments, skills, memory stores, deployments, and vaults as files in your repository and keep the…
On a remote host without a browser:
Claude Developer Platform · in the page
cli-sdks-libraries/cli/authentication
…s://platform.claude.com/docs/en/cli-sdks-libraries/cli/authentication description: Authenticate the ant CLI with interactive login, API keys, named profiles, and Workload Identity Federation. --- The…
quickstart
Claude Developer Platform · in the page
cli-sdks-libraries/cli/quickstart
…https://platform.claude.com/docs/en/cli-sdks-libraries/cli/quickstart description: Install the ant command-line tool, authenticate, and send your first request to the Claude API. --- The `ant` CLI pr…
scripting
Claude Developer Platform · in the page
cli-sdks-libraries/cli/scripting
…https://platform.claude.com/docs/en/cli-sdks-libraries/cli/scripting description: Version-control API resources as files with ant apply, chain ant CLI commands in scripts, operate on resources from C…
sessions-connect
Claude Developer Platform · in the page
cli-sdks-libraries/cli/sessions-connect
…//platform.claude.com/docs/en/cli-sdks-libraries/cli/sessions-connect description: Attach the ant CLI to a Claude Managed Agents session to follow its transcript live, send messages, allow or deny too…
using
Claude Developer Platform · in the page
cli-sdks-libraries/cli/using
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/cli/using description: Command structure, output formats, GJSON transforms, request bodies, and debugging for the ant CLI. --- This page co…
apple-foundation-models
Claude Developer Platform · in the page
cli-sdks-libraries/libraries/apple-foundation-models
…aude.com/docs/en/cli-sdks-libraries/libraries/apple-foundation-models description: Use Claude on Apple platforms through the Foundation Models framework with the Claude for Foundation Models Swift pac…
openai-sdk
Claude Developer Platform · in the page
cli-sdks-libraries/libraries/openai-sdk
…//platform.claude.com/docs/en/cli-sdks-libraries/libraries/openai-sdk description: Anthropic provides a compatibility layer that enables you to use the OpenAI SDK to test the Claude API. With a few co…
middleware
Claude Developer Platform · in the page
cli-sdks-libraries/middleware
…rl: https://platform.claude.com/docs/en/cli-sdks-libraries/middleware description: Intercept and modify the SDK's requests and responses. --- The Claude SDK provides a middleware (or interceptor) hoo…
overview
Claude Developer Platform · in the page
cli-sdks-libraries/overview
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/overview description: "Official tools for building with the Claude API: client SDKs in seven languages, the ant CLI, and framework-specific…
csharp
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/csharp
…l: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/csharp description: Install and configure the Anthropic C# SDK for .NET applications with IChatClient integration --- The Anthropic C# S…
go
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/go
…K url: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/go description: Install and configure the Anthropic Go SDK with context-based cancellation and functional options --- The Anthropic…
java
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/java
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/java description: Install and configure the Anthropic Java SDK with builder patterns and async support --- The Anthropic Java SDK prov…
php
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/php
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/php description: Install and configure the Anthropic PHP SDK with value objects and builder patterns --- The Anthropic PHP library pr…
For Amazon Bedrock support
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/python
…l: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/python description: Install and configure the Anthropic Python SDK with sync and async client support --- The Anthropic Python SDK provi…
Automatically handles tool execution loop
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/ruby
…url: https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/ruby description: Install and configure the Anthropic Ruby SDK with Sorbet types, streaming helpers, and connection pooling --- The An…
typescript
Claude Developer Platform · in the page
cli-sdks-libraries/sdks/typescript
…ttps://platform.claude.com/docs/en/cli-sdks-libraries/sdks/typescript description: Install and configure the Anthropic TypeScript SDK for Node.js, Deno, Bun, and browser environments --- This library…
get-api-key
Claude Developer Platform · in the page
get-api-key
…r Claude API key url: https://platform.claude.com/docs/en/get-api-key description: Find, create, and manage your API keys for the Claude API in the Claude Console. --- API keys for the Claude API (al…
get-started
Claude Developer Platform · in the page
get-started
…rted with Claude url: https://platform.claude.com/docs/en/get-started description: Make your first API call to Claude and build a simple web search assistant. --- ## Prerequisites * A [Claude Consol…
home
Claude Developer Platform · in the page
home
…-- title: Documentation url: https://platform.claude.com/docs/en/home description: Claude API Documentation --- <HomePage> <HomeHero eyebrow="Claude Platform" title="Start building with Cla…
intro
Claude Developer Platform · in the page
intro
…title: Intro to Claude url: https://platform.claude.com/docs/en/intro description: Claude is a highly performant, trustworthy, and intelligent AI platform built by Anthropic. Claude excels at tasks in…
access-transparency
Claude Developer Platform · in the page
manage-claude/access-transparency
…https://platform.claude.com/docs/en/manage-claude/access-transparency description: Receive an audit record of human access to your organization's data by Anthropic personnel through the Compliance API…
access-transparency-log
Claude Developer Platform · in the page
manage-claude/access-transparency-log
…s://platform.claude.com/docs/en/manage-claude/access-transparency-log description: Use signed checkpoints and Merkle proofs from the Compliance API to verify that no Access Transparency event was remo…
admin-api
Claude Developer Platform · in the page
manage-claude/admin-api
…API url: https://platform.claude.com/docs/en/manage-claude/admin-api description: Manage organization members, workspaces, invites, and API keys programmatically with the Admin API, using an Admin AP…
admin-api-keys
Claude Developer Platform · in the page
manage-claude/admin-api-keys
…url: https://platform.claude.com/docs/en/manage-claude/admin-api-keys description: Create an Admin API key for your Claude Console or Claude Enterprise organization. --- An Admin API key authenticate…
analytics-api
Claude Developer Platform · in the page
manage-claude/analytics-api
…url: https://platform.claude.com/docs/en/manage-claude/analytics-api description: Understand which analytics API and API key your organization needs, then provision access to Claude Code productivity…
api-and-data-retention
Claude Developer Platform · in the page
manage-claude/api-and-data-retention
…ps://platform.claude.com/docs/en/manage-claude/api-and-data-retention description: Learn about how Anthropic's APIs and associated features retain data, including information about zero data retention…
app-attest
Claude Developer Platform · in the page
manage-claude/app-attest
…pps url: https://platform.claude.com/docs/en/manage-claude/app-attest description: Let genuine installations of your iOS or macOS app call the Claude API without shipping an API key or running a proxy…
authentication
Claude Developer Platform · in the page
manage-claude/authentication
…url: https://platform.claude.com/docs/en/manage-claude/authentication description: Authenticate to the Claude API with API keys, Workload Identity Federation, or App Attest. --- The Claude API suppor…
First request
Claude Developer Platform · in the page
manage-claude/claude-code-analytics-api
…//platform.claude.com/docs/en/manage-claude/claude-code-analytics-api description: Programmatically access your organization's Claude Code usage analytics and productivity metrics with the Claude Code…