AI-ready context
Repository instructions and architecture files make commands, constraints, and verification expectations visible to developers and coding agents.
Relevant context stays close to the code being changed.
Explore AI-ready foundationsSpring Boot foundations for developers and coding agents
Stop rebuilding backend infrastructure.
BuildBaseKit provides modular, AI-ready Spring Boot boilerplates for authentication and file storage, with payment foundations currently planned.
Documented compatibilityExplicit architectureFocused scope
Quick start
Run AuthKit-Lite
git clone https://github.com/buildbasekit/AuthKit-Lite.git
cd AuthKit-Lite
./mvnw spring-boot:runWhy BuildBaseKit
A focused starting point for Spring Boot
Each boilerplate covers one backend capability with explicit architecture, repository guidance, and a documented product boundary.
Current by default
AuthKit-Lite uses Java 25 and Spring Boot 4.1.1, with the supported baseline recorded in its release metadata.
Explore production readinessInspectable engineering boundaries
Architecture, validation, security, tests, and documentation are part of the foundation and visible before adoption.
Inspect engineering standardsFocused adoption
Choose one capability without inheriting unrelated infrastructure, dependencies, or application code.
The product boundary stays smaller than a full starter kit.
Explore modular foundationsProduct discovery
Choose the backend capability you need
Start with a focused foundation instead of adopting an oversized starter kit.
Free · Open sourceFree
Authentication
AuthKit-Lite
Spring Boot 4 authentication boilerplate with JWT, refresh tokens, role-based access, and optional WebAuthn passkeys.
Best for: APIs, SaaS products, internal tools, and backend systems requiring reusable authentication.
Explore AuthKit-LiteFree · Open sourceFree
File Storage
FiloraFS-Lite
A focused Spring Boot local file upload starter with API-key access and straightforward REST APIs.
Best for: Learning, prototypes, internal tools, and simple self-hosted file workflows.
Explore FiloraFS-LiteAvailable · Pro$29
File Storage
FiloraFS-Pro
Spring Boot file-storage boilerplate with JWT authentication, local and AWS S3 providers, persisted metadata, and protected file access.
Best for: Production file APIs that need authentication, persisted metadata, and flexible storage.
Explore FiloraFS-ProPayments foundation
StripeKit-Pro
A planned addition to the StripeKit payments foundation family.
Featured resources
Practical guidance for stronger backends
GuideHow to Make a Spring Boot Project AI-Ready
Explore all resources →Make a Spring Boot repository easier for coding agents to modify with explicit architecture, commands, constraints, contribution rules, and verification expectations.
BenchmarkSpring Boot File Upload Performance Test at 7,500 RPMMeasured FiloraFS-Lite performance from 500 to 7,500 target RPM, including latency, throughput, CPU, memory, workload gaps, and test limitations.
BlogAI Backend Development Without Rebuilding SetupA practical AI backend workflow: verify a Spring Boot foundation, give coding agents explicit context, and focus generated changes on product-specific behavior.
Trust through transparency
Know what you are adopting
Available foundations expose compatibility, product scope, documentation, and release information. Open-source projects link directly to their repositories; commercial terms stay explicit.
Stop rebuilding backend infrastructure
Start from a focused Spring Boot foundation
Choose the backend capability you need, then build the product-specific code.