Claude/Code/How To/Get Started with AWS Bedrock

• How to get started with Claude/Code using AWS/Bedrock/Model/Anthropic

  • Problem

    • You, as a software engineer, want to use Claude Code with Anthropic models served by your enterprise's AWS Bedrock access. You are working in an organization where your DevOps team has already configured your AWS user to be able to utilize AWS Bedrock, as long as you use Okta to conduct MFA and then subsequently assume an AWS/IAM/Role.

    • After this guide you should be able to:

      • 1 - start Claude/Code and demonstrate that it is able to use your organization's AWS Bedrock connection to utilize Anthropic/Models such as Claude 3.5 Sonnet and Claude 3.7 Sonnet and Anthropic/Model/Claude/3.5/Haiku.

  • Prerequisites

    • Your Responsibilities and Prerequisites

      • 1 - Follow AWS/Okta Keyman/How To/Install and Configure for Bedrock

        • The above how-to guide is a prerequisite for this one.

      • 2 - Before starting this how-to guide, you should already have these things available as CLI commands:

        • NodeJS 18+ and npm
        • aws_okta_keyman (which was required for the how-to guide above)

      • 3 - You should have a git repository with code you want to work on with claude code

        • This guide assumes you already have a git repo you want to work on. You can create a new one right now, if you wish, but how to do that is not described here.

  • Steps

    • 1. Install tools - Claude/Code

      • npm install -g @anthropic-ai/claude-code

    • 4. Tell Claude Code to use Bedrock

      • export CLAUDE_CODE_USE_BEDROCK=1
        export AWS_REGION=us-east-1
        export ANTHROPIC_MODEL=us.anthropic.claude-3-7-sonnet-20250219-v1:0
        export ANTHROPIC_SMALL_FAST_MODEL=us.anthropic.claude-3-5-haiku-20241022-v1:0

      • These variables switch the provider and model IDs for the session (Anthropic Claude Code Bedrock Docs).
      • Persist them for every session under the env key in ~/.claude/settings.json — Claude/Code/Settings:
        • json

          {
            "env": {
              "CLAUDE_CODE_USE_BEDROCK": "true",
              "ANTHROPIC_MODEL": "us.anthropic.claude-3-7-sonnet-20250219-v1:0"
            }
          }

    • 5. Launch Claude Code in your project

      • cd /path/to/monorepo
        claude    # starts the REPL
        /init     # one-time: generates CLAUDE.md project map
        /status   # confirms “provider: Bedrock”

    • 6. Optional hygiene

      • Keep a large or irrelevant library out of reach with a Read(...) rule under permissions.deny in .claude/settings.json — Claude/Code/Settings:
        • json

          {
            "permissions": {
              "deny": [
                "Read(./libs/legacy/**)"
              ]
            }
          }

      • View token spend with /cost inside a session.

  • Result

    • Claude Code now runs against AWS Bedrock using STS credentials issued by aws_okta_keyman; every request is SigV4-signed and billed to your enterprise account.