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AWS Lambda Agent Setup Guide

These are instructions from AWS to set up AI agent integrations for building and deploying serverless applications on AWS Lambda. All commands are validated and ready to use.

Validate authentication with AWS

Check whether the user has valid AWS credentials by running:

aws sts get-caller-identity

If the command succeeds and shows the user Account and Arn, the user is authenticated. If it fails (missing, expired, or invalid credentials), fetch and follow the signing-in-to-aws skill:

https://github.com/aws/agent-toolkit-for-aws/blob/main/skills/core-skills/signing-in-to-aws/SKILL.md

Install the AWS serverless skill

Use the correct section for your agent below.

Claude Code

Install the aws-core plugin from Agent Toolkit for AWS

Run these commands to install the AWS serverless skill, agent hooks, and the AWS MCP Server configuration in one step.

claude plugin marketplace add aws/agent-toolkit-for-aws
claude plugin install aws-core@agent-toolkit-for-aws

Install for other agents such as Cursor, Kiro CLI, GitHub Copilot, Codex, Devin Desktop, and OpenCode

npx skills add https://github.com/aws/agent-toolkit-for-aws --skill aws-serverless --yes --global

Install additional AWS Lambda skills using any agent such as Claude Code, Cursor, Kiro CLI, GitHub Copilot, Codex, Devin Desktop, and OpenCode

Install Lambda MicroVM skill:

npx skills add https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/specialized-skills/serverless-skills/aws-lambda-microvms --yes --global

Install Lambda Managed Instances skill:

npx skills add https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/specialized-skills/serverless-skills/aws-lambda-managed-instances --yes --global

Install Lambda durable functions skill:

npx skills add https://github.com/aws/agent-toolkit-for-aws/tree/main/skills/specialized-skills/serverless-skills/aws-lambda-durable-functions --yes --global

AWS Serverless MCP Server

Register the Serverless MCP Server based on your agent. Replace AWS_PROFILE with your local AWS profile name.

Kiro

Config file: ~/.kiro/settings/mcp.json

Add under "mcpServers":

"awslabs.aws-serverless-mcp": {
  "command": "uvx",
  "args": ["awslabs.aws-serverless-mcp-server@latest"],
  "env": {
    "AWS_PROFILE": <your profile here>,
    "AWS_REGION": "us-east-1",
    "FASTMCP_LOG_LEVEL": "ERROR"
  },
  "disabled": false
}

Claude Code

claude mcp add awslabs-aws-serverless-mcp \
  -e AWS_PROFILE=<your profile here> \
  -e AWS_REGION=us-east-1 \
  -e FASTMCP_LOG_LEVEL=ERROR \
  --scope user \
  -- uvx awslabs.aws-serverless-mcp-server@latest

Codex

codex mcp add awslabs-aws-serverless-mcp \
  --env AWS_PROFILE=<your profile here> \
  --env AWS_REGION=us-east-1 \
  --env FASTMCP_LOG_LEVEL=ERROR \
  -- uvx awslabs.aws-serverless-mcp-server@latest

Cursor, GitHub Copilot, Devin Desktop, OpenCode, and all other agents

Add to your agent's MCP config file under "mcpServers":

Agent Config file
Cursor .cursor/mcp.json
GitHub Copilot .vscode/mcp.json
Devin Desktop ~/.codeium/windsurf/mcp_config.json
OpenCode ~/.config/opencode/opencode.jsonc 
"awslabs.aws-serverless-mcp": {
  "command": "uvx",
  "args": ["awslabs.aws-serverless-mcp-server@latest"],
  "env": {
    "AWS_PROFILE": <your profile here>,
    "AWS_REGION": "us-east-1",
    "FASTMCP_LOG_LEVEL": "ERROR"
  }
}