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

import anthropic

client = anthropic.Anthropic()

message = client.messages.create(
  model="claude-opus-4-7",
  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.

Google Cloud Vertex AI

Microsoft Foundry

Developer journey

From idea to production

Follow the lifecycle or jump to what you need.

Models

The Claude model family

Choose the right model for your use case.

Most capable

Opus 4.7

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.

Start building
with Claude

Choose how you build

Messages

Managed Agents

From idea to production

Get started

Build

Evaluate & ship

Operate

The Claude model family

Keep learning

Start building
with Claude

Choose how you build

Messages

Managed Agents

From idea to production

Get started

Build

Evaluate & ship

Operate

The Claude model family

Keep learning

Start buildingwith Claude

Choose how you build

Messages

Managed Agents

From idea to production

Get started

Build

Evaluate & ship

Operate

The Claude model family

Keep learning

Start buildingwith Claude

Choose how you build

Messages

Managed Agents

From idea to production

Get started

Build

Evaluate & ship

Operate

The Claude model family

Keep learning

Start building
with Claude

Start building
with Claude