Features

Simfra goes beyond API mocking. In addition to emulating 88 AWS services, it includes platform features that make it a complete local AWS environment.

Web Console and Tools

• CloudShell - In-browser terminal with the AWS CLI pre-configured. Run commands immediately without any setup.
• Embedded Browser - Chromium running inside Docker with DNS and CA trust pre-configured. Access internal load balancers, Cognito hosted UIs, and S3 websites.
• EC2 Instance Connect - Open a shell into any running EC2 instance directly from the web console.
• Message Inbox - Captures SNS HTTP deliveries, SES emails, subscription confirmations, and Cognito verification codes in a unified inbox.

Security and Access Control

• IAM Policy Enforcement - Every API call goes through the full IAM evaluation chain: explicit deny, SCPs, resource policies, permission boundaries, identity policies, and session policies.
• Multi-Account Support - Create and manage multiple AWS accounts, each with isolated resources and credentials.

Platform

• Admin API - REST API for account management, service discovery, Docker management, event streaming, and more.
• Cross-Service Integrations - SNS delivers to SQS. Lambda reads from Kinesis. EventBridge triggers Step Functions. These integrations execute at runtime, not just at creation time.