Floci — Local Cloud Emulators

Coding agents write cloud code faster than ever, but they can't safely run it against a real account. Point them at Floci instead: a local cloud to build, run, and verify against. Instant, free, and credential-free. 0No credentials to leak. Agents connect with throwaway keys. No real cloud secrets in the agent's context or sandbox. Nothing to exfiltrate, nothing to bill. 24msInner-loop fast. 24 ms cold start, 13 MiB idle. Agents spin up, test, and tear down inside the edit loop instead of waiting on round-trips to a remote account. realReal signal, not mock theater. Lambda, RDS, Redis, and Kafka run for real, so code an agent verifies locally behaves the same in production. No mock-shaped false positives. ✗Zero blast radius. Let agents iterate aggressively. Worst case, they reset a local container, not your staging environment or your cloud bill. export AWS_ENDPOINT_URL=http://localhost:4566 pytest tests/ Works with every SDK, CLI, Terraform/OpenTofu module, and test runner your agents already use, with no special integration. Developer Tools One toolchain. All clouds. Manage and explore every Floci emulator from a unified CLI or visual dashboard. CLI floci-cli A unified command-line interface to start, stop, and inspect all Floci emulators. One install covers AWS, Azure, GCP, and OCI from a single tool. curl -fsSL https://floci.io/install.sh | sh floci start floci doctor UI floci-ui A visual dashboard for all Floci cloud emulators. Browse resources, inspect data, and manage services across AWS, Azure, GCP, and OCI from one place. BROWSE ALL SERVICES S3 Browser DynamoDB SQS Queues Lambda Logs Blob Storage Azure Queue + more Why Floci Built for developers who ship. No gatekeeping. No pricing tiers. No surprises. A local cloud that starts in milliseconds and works everywhere. $0MIT Licensed. Forever free. Fork it, embed it, extend it. No "community edition" sunset, no enterprise feature flags. Every service is available to every developer, always. ✗No auth token. Ever. Pull the Docker image and go. No sign-ups, no API keys, no telemetry. LocalStack started requiring an auth token in March 2026. Floci never will. 24msNative binary speed. Compiled with GraalVM Mandrel. Starts in 24ms, idles at 13 MiB, fast enough for inner-loop iteration. Your CI, your laptop, and your AI agents will all thank you. realReal engines, not mocks. Lambda runs in real Docker containers. RDS uses real PostgreSQL/MySQL. ElastiCache runs real Redis. 100% protocol fidelity, no surprises in production. Use Cases Where teams put Floci to work. From the inner loop to CI to the classroom — anywhere a real cloud account is too slow, too risky, or too expensive. CIEphemeral test environments. Spin up the full stack inside every pipeline job. 24 ms startup adds nothing to the build, each job gets an isolated cloud, and teardown is free. λLocal-first development. Build against S3, Pub/Sub, or Service Bus on your laptop — offline if you want. No shared dev account to trip over, no credentials to rotate. tfInfrastructure-as-code dry runs. Apply Terraform, OpenTofu, or CloudFormation against localhost first. Catch typos, drift, and bad refactors before they ever touch a real account. 101Workshops & onboarding. Teach cloud services with zero billing risk. Every student runs the whole stack on their own machine — no accounts to provision, nothing to clean up. Quick Start One install. Every service, locally. No account, no token. Pick your platform and go. curl -fsSL https://floci.io/install.sh | sh floci start && eval $(floci env) aws s3 mb s3://my-bucket echo "Why pay for S3 when floci is free? 🎉" > hello-floci.txt aws s3 cp hello-floci.txt s3://my-bucket/ aws s3 cp s3://my-bucket/hello-floci.txt hello-back.txt cat hello-back.txt 119 AWS services ready on :4566. S3 · SQS · DynamoDB · Lambda · RDS · +114 more