Workflow
Test what your app really does
Use normal AWS clients against localhost, then verify the effects with fakecloud instead of stitching together polling, fixtures, or private test hooks.
SDKs
First-party test clients
TypeScript, Python, Go, PHP, Java, and Rust SDKs wrap the /_fakecloud/* endpoints for resets, assertions, and manual control of async processors after your app has already used the normal AWS APIs.
Coverage
105 AWS services
S3, SQS, SNS, EventBridge, EventBridge Pipes, EventBridge Scheduler, Lambda, EC2, DynamoDB, IAM, STS, Organizations, SSM, Secrets Manager, CloudWatch Logs, CloudWatch (Metrics & Alarms), KMS, CloudFormation, Cloud Control API, SES, Cognito User Pools, Cognito Identity, Kinesis, Firehose, RDS, RDS Data API, Aurora DSQL, Resource Groups, Resource Groups Tagging API, ElastiCache, MemoryDB, EKS, Cloud Map, Step Functions, API Gateway v1 (REST), API Gateway v2 (HTTP), Bedrock, Bedrock Agent, Bedrock Agent Runtime, Bedrock Runtime, ECR, ECS, Elastic Load Balancing v2, CloudFront, Route 53, WAF v2, Application Auto Scaling, Athena, ACM, and Glue.
Tested
Conformance tested
True 100% conformance across all 3,932 implemented API operations: 248,557/248,557 Smithy-model-generated test variants pass on every commit, backed by end-to-end tests against the official AWS SDKs.
Real behavior
Cross-service flows are wired up
30+ service-to-service integrations: S3 notifications, SNS fanout, EventBridge targets, DynamoDB Streams, CloudWatch Logs subscriptions, Cognito triggers, Step Functions task integrations, API Gateway → Lambda, and more — all exercise real service interactions.