Cloud Infrastructure AWS Signature Version 4

AWS EC2 REST API

Scalable cloud compute instances on demand

Amazon Elastic Compute Cloud (EC2) provides secure, resizable compute capacity in the cloud. Developers use EC2 to launch virtual servers, configure security and networking, and manage storage with complete control over computing resources. EC2 enables rapid scaling and flexible instance types optimized for compute, memory, storage, and GPU workloads.

Base URL https://ec2.amazonaws.com

API Endpoints

Method	Endpoint	Description
POST	`/`	Run one or more EC2 instances with specified AMI and instance type (Action=RunInstances)
POST	`/`	Describe one or more EC2 instances with filtering options (Action=DescribeInstances)
POST	`/`	Stop one or more running EC2 instances (Action=StopInstances)
POST	`/`	Start one or more stopped EC2 instances (Action=StartInstances)
POST	`/`	Terminate one or more EC2 instances permanently (Action=TerminateInstances)
POST	`/`	Describe available Amazon Machine Images (AMIs) (Action=DescribeImages)
POST	`/`	Create an EBS volume in specified availability zone (Action=CreateVolume)
POST	`/`	Attach an EBS volume to a running instance (Action=AttachVolume)
POST	`/`	Create a snapshot of an EBS volume for backup (Action=CreateSnapshot)
POST	`/`	Describe security groups and their rules (Action=DescribeSecurityGroups)
POST	`/`	Create a new security group with specified rules (Action=CreateSecurityGroup)
POST	`/`	Authorize inbound traffic rules for security group (Action=AuthorizeSecurityGroupIngress)
POST	`/`	Describe all available AWS regions and availability zones (Action=DescribeRegions)
POST	`/`	Allocate an Elastic IP address for your account (Action=AllocateAddress)
POST	`/`	Associate an Elastic IP with a running instance (Action=AssociateAddress)

Code Examples

curl -X POST 'https://ec2.amazonaws.com/' \
  --data-urlencode 'Action=DescribeInstances' \
  --data-urlencode 'Version=2016-11-15' \
  --aws-sigv4 'aws:amz:us-east-1:ec2' \
  --user 'AWS_ACCESS_KEY_ID:AWS_SECRET_ACCESS_KEY'

const { EC2Client, DescribeInstancesCommand } = require('@aws-sdk/client-ec2');

const client = new EC2Client({
  region: 'us-east-1',
  credentials: {
    accessKeyId: 'YOUR_ACCESS_KEY',
    secretAccessKey: 'YOUR_SECRET_KEY'
  }
});

async function listInstances() {
  const command = new DescribeInstancesCommand({});
  const response = await client.send(command);
  return response.Reservations;
}

listInstances().then(console.log);

import boto3

# Initialize EC2 client
client = boto3.client(
    'ec2',
    region_name='us-east-1',
    aws_access_key_id='YOUR_ACCESS_KEY',
    aws_secret_access_key='YOUR_SECRET_KEY'
)

# Describe all instances
response = client.describe_instances()

for reservation in response['Reservations']:
    for instance in reservation['Instances']:
        print(f"Instance ID: {instance['InstanceId']}")
        print(f"State: {instance['State']['Name']}")

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launch_ec2_instance Launch a new EC2 instance with specified AMI, instance type, and configuration options

manage_instance_lifecycle Start, stop, reboot, or terminate EC2 instances based on instance IDs or tags

query_instance_status Retrieve detailed information about EC2 instances including state, IP addresses, and metadata

manage_security_groups Create, modify, or delete security groups and their ingress/egress rules

manage_ebs_volumes Create, attach, detach, or snapshot EBS volumes for persistent storage

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AWS EC2 REST API

API Endpoints

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Code Examples

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