Guide · Storage

How to use AWS S3 with Claude Code

AWS S3 scores 5/5 on our Claude Code fit scale: aws-core plugin in Anthropic's marketplace bundles the AWS MCP Server + skills (per AWS docs). These steps use only AWS S3’s and Anthropic’s official instructions; each step links its source.

1. 1

   Have Claude Code and a AWS S3 account ready

   You need Claude Code installed and an account with AWS S3 (aws.amazon.com). Some tools only need the account when the agent first calls a live tool.

   Source: https://code.claude.com/docs/en/mcp

2. 2

   Install the official AWS S3 plugin

   Run this in Claude Code (or your terminal, as the source shows):

   /plugin install aws-core@claude-plugins-official
   /reload-plugins

   Copy

   Source: https://docs.aws.amazon.com/agent-toolkit/latest/userguide/quick-start.html

3. 3

   No marketplace setup needed

   This plugin is in Anthropic’s official marketplace (claude-plugins-official), which Claude Code adds automatically the first time you start an interactive session.

   Source: https://code.claude.com/docs/en/plugins/anthropic-marketplaces

4. 4

   Connect and verify

   Run /mcp inside a Claude Code session to see connected servers, check status and complete sign-in where the server uses OAuth.

   Source: https://code.claude.com/docs/en/mcp