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Solutions

  • AI agents
  • Code modernization
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Learn

  • Blog
  • Courses
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  • Connectors
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  • Engineering at Anthropic
  • Events
  • Powered by Claude
  • Service partners
  • Startups program

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Claude Platform

Start building
with Claude

Everything you need to integrate Claude into your applications. From first API call to production.


What do you want to build?
⌘K
QuickstartGet API keyAPI reference
import anthropic

client = anthropic.Anthropic()

message = client.messages.create(
  model="claude-opus-4-8",
  max_tokens=1024,
  messages=[{
    "role": "user",
    "content": "Hello, Claude"
  }]
)
print(message.content[0].text)
Platform

Choose how you build

Pick the developer surface that matches your approach, and the infrastructure that fits your stack.

Messages

Direct model access. You construct every turn, manage conversation state, and write your own tool loop.

QuickstartAPI referenceClient SDKs

Managed Agents

Fully managed agent infrastructure. Deploy and manage autonomous agents in stateful sessions with persistent event history.

QuickstartAPI referenceDefine your agent
AWS BedrockGoogle Cloud Vertex AIMicrosoft Foundry
Developer journey

From idea to production

Follow the lifecycle or jump to what you need.

  1. 1

    Get started

    QuickstartGet API keyChoose a modelInstall an SDKTry the Workbench
  2. 2

    Build

    Messages APIExtended thinkingVisionTool useWeb searchCode executionStructured outputsPrompt cachingStreaming
  3. 3

    Evaluate & ship

    Prompting best practicesRun evalsBatch testingSafety & guardrailsRate limits & errorsCost optimization
  4. 4

    Operate

    Workspaces & adminAPI key managementUsage monitoringModel migration
Models

The Claude model family

Choose the right model for your use case.

Most capable
Opus 4.8

Best for complex analysis, coding, and creative tasks requiring deep reasoning.

Best balance
Sonnet 4.6

Ideal balance of intelligence and speed for most production workloads.

Fastest
Haiku 4.5

Lightning-fast responses for high-volume, latency-sensitive applications.

Resources

Keep learning


Courses

Interactive courses to master Claude.

Cookbook

Code samples and patterns.

Quickstarts

Deployable starter apps.

What's new
Latest features and updates.
Claude Code

An agentic coding assistant in your terminal.