Services Overview

AWSim registers 60+ AWS services. All services share the same endpoint at http://localhost:4566.

The service is selected automatically from the X-Amz-Target header (for JSON/Query protocols) or the URL path (for REST protocols).

Service Table

Service	Signing Name	Protocol	Persistent	Operations	Description
ACM	acm	JSON	Yes	—	Certificate Manager
API Gateway	execute-api	REST-JSON	No	—	REST API management and proxy (v1 + v2)
AppConfig	appconfig	REST-JSON	Yes	20	Feature flags & config delivery (control + data plane)
AppConfig Data	appconfig (appconfigdata)	REST-JSON	Yes	2	Runtime polling: StartConfigurationSession + GetLatestConfiguration
Application Auto Scaling	application-autoscaling	JSON	Yes	10	Scalable targets and policies for ECS/Lambda/DynamoDB
AppSync	appsync	REST-JSON	No	—	GraphQL API
Athena	athena	JSON	No	—	SQL query service
Backup	backup	REST-JSON	Yes	17	Backup vaults, plans, selections, jobs
Batch	batch	REST-JSON	No	—	Batch compute jobs
Bedrock	bedrock	REST-JSON	No	—	Foundation model management
Bedrock Runtime	bedrock-runtime	REST-JSON	No	—	Foundation model invocation
Cloud Map	servicediscovery	JSON	Yes	17	Service discovery: namespaces, services, instances
CloudFormation	cloudformation	Query	No	—	Infrastructure as code
CloudFront	cloudfront	REST-XML	No	—	CDN distributions
CloudTrail	cloudtrail	JSON	No	—	API audit log
CloudWatch Logs	logs	JSON	No	—	Log groups and streams
CloudWatch Metrics	monitoring	Query	No	—	Metrics and alarms
Cognito Identity Pools	cognito-identity	JSON	Yes	—	Federated identity
Cognito User Pools	cognito-idp	JSON	Yes	—	User authentication
Comprehend	comprehend	JSON	No	—	Natural language processing
DataSync	datasync	JSON	No	—	Data transfer service
DynamoDB	dynamodb	JSON	Yes	57	Key-value / document store
EC2	ec2	Query	No	—	Virtual machines (partial)
ECR	ecr	JSON	No	—	Container registry
ECS	ecs	JSON	No	—	Container service
EFS	elasticfilesystem	REST-JSON	Yes	19	Elastic File System (file systems, mount targets, access points)
EKS	eks	REST-JSON	No	—	Kubernetes control plane
ELB	elasticloadbalancing	Query	No	—	Load balancers
EventBridge	events	JSON	No	—	Event routing
EventBridge Pipes	pipes	REST-JSON	Yes	10	Point-to-point source -> target integrations
EventBridge Scheduler	scheduler	REST-JSON	Yes	—	Scheduled tasks
Firehose	firehose	JSON	No	—	Streaming data delivery
Glacier	glacier	REST-JSON	Yes	12	Cold storage: vaults + archives + jobs
Glue	glue	JSON	No	—	Data catalog
IAM	iam	Query	Yes	—	Identity and Access Management
Identity Store	identitystore	JSON	Yes	16	Users, groups, group memberships (paired with SSO Admin)
Kendra	kendra	JSON	No	—	Enterprise search
Kinesis	kinesis	JSON	No	—	Data streaming
KMS	kms	JSON	No	28	Key Management Service
Lambda	lambda	REST-JSON	No	—	Serverless function execution
MemoryDB	memorydb	JSON	Yes	18	Redis-compatible clusters, users, ACLs, snapshots
MQ	mq	REST-JSON	Yes	14	Amazon MQ brokers, users, configurations
Organizations	organizations	JSON	No	—	Account / OU / SCP management
Pinpoint	mobiletargeting	REST-JSON	Yes	15	Apps, endpoints, segments, campaigns (no real delivery)
Polly	polly	REST-JSON	No	—	Text-to-speech
QLDB	qldb	REST-JSON	Yes	8	Ledger metadata (control plane only)
RDS	rds	Query	Yes	—	Relational database metadata
Resource Groups Tagging API	tagging	JSON	Yes	8	Cross-service resource discovery by tags
Route 53	route53	REST-XML	No	—	DNS management
S3	s3	REST-XML	Yes*	44	Object storage
Secrets Manager	secretsmanager	JSON	No	—	Secret storage
SES	ses	Query	No	—	Simple Email Service
SNS	sns	Query	Yes	21	Simple Notification Service
SQS	sqs	Query	Yes	17	Simple Queue Service
SSM	ssm	JSON	No	—	Parameter Store and Systems Manager
SSO Admin	sso	JSON	No	—	IAM Identity Center admin
Step Functions	states	JSON	No	—	State machine orchestration
STS	sts	Query	No	—	Security Token Service
Transfer Family	transfer	JSON	Yes	13	SFTP/FTP servers, users, SSH keys (no actual listener)
WAF	wafv2	JSON	Yes	—	Web Application Firewall
X-Ray	xray	REST-JSON	Yes	11	Trace ingest, summaries, service graph

*S3 persists bucket and object metadata but not object data bytes.

OpenSearch

In addition to the AWS services, AWSim mounts an Elasticsearch-compatible REST API at /opensearch/. This is not a standard AWS service endpoint — see OpenSearch for details.

Protocol Notes

• REST-XML — URL-based routing, XML request/response bodies (S3, Route 53, CloudFront)
• REST-JSON — URL-based routing, JSON request/response bodies (Lambda, API Gateway, AppSync)
• JSON — X-Amz-Target header routing, JSON bodies (DynamoDB, KMS, CloudWatch Logs)
• Query — form-encoded request body with Action= parameter (SQS, SNS, IAM, EC2)

Detailed Service Pages

For operations lists, SDK examples, and limitations, see:

• ACM
• API Gateway
• AppConfig
• Application Auto Scaling
• AppSync
• Athena
• Backup
• Bedrock
• Cloud Map (Service Discovery)
• CloudFormation
• CloudFront
• CloudWatch Logs
• CloudWatch Metrics
• Cognito
• Comprehend
• DocumentDB
• DynamoDB
• EC2
• ECR
• ECS
• EFS
• ELB
• EventBridge
• EventBridge Pipes
• EventBridge Scheduler
• Glacier
• Glue
• IAM & STS
• Identity Store
• Kendra
• Kinesis
• KMS
• Lambda
• MemoryDB
• MQ
• Neptune
• OpenSearch
• Pinpoint
• QLDB
• RDS
• Resource Groups Tagging API
• Route 53
• S3
• Secrets Manager
• SES
• SNS
• SQS
• SSM
• Step Functions
• Transfer Family
• WAF
• X-Ray