Localstack MCP Server

What the code does

We read the source, 19 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  return existsSync("/.dockerenv");

    const child = spawn(command, args, { ...spawnOptions });

          path.join(directory, samTemplateFile),

const DOCKER_SOCKET_CONTAINER_PATH = "/var/run/docker.sock";

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add localstack-mcp-server -- npx -y @localstack/localstack-mcp-server

{
  "mcpServers": {
    "localstack-mcp-server": {
      "args": [
        "-y",
        "@localstack/localstack-mcp-server"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.localstack-mcp-server]
command = "npx"
args = ["-y", "@localstack/localstack-mcp-server"]

{
  "mcpServers": {
    "localstack-mcp-server": {
      "args": [
        "-y",
        "@localstack/localstack-mcp-server"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "localstack-mcp-server": {
      "args": [
        "-y",
        "@localstack/localstack-mcp-server"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: LOCALSTACK_AUTH_TOKEN (LocalStack Auth Token (required for all LocalStack MCP tools)), AWS_ACCESS_KEY_ID (Source AWS access key used by AWS Replicator to read external AWS resources), AWS_SECRET_ACCESS_KEY (Source AWS secret access key used by AWS Replicator to read external AWS resources), AWS_SESSION_TOKEN (Optional source AWS session token used by AWS Replicator for temporary credentials), AWS_DEFAULT_REGION (Source AWS region used by AWS Replicator), AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID (Optional Replicator-specific source AWS access key. Use this instead of AWS_ACCESS_KEY_ID when the Replicator source account should be isolated from generic AWS config.), AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY (Optional Replicator-specific source AWS secret access key. Use with AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID.), AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN (Optional Replicator-specific source AWS session token for temporary credentials.), AWS_REPLICATOR_SOURCE_REGION_NAME (Optional Replicator-specific source AWS region. Use with the AWS_REPLICATOR_SOURCE_* credential group.), AWS_REPLICATOR_SOURCE_ENDPOINT_URL (Optional Replicator-specific source AWS endpoint URL for advanced source-account scenarios.), APP_INSPECTOR (Set to 1 in the LocalStack container environment to enable App Inspector by default across restarts. The MCP tool can also toggle App Inspector at runtime.). The author declared them in the registry entry; get the values from the project itself.