Python Framework

RapidKit Core

Production-ready Python engine for FastAPI and NestJS development with RapidKit modules, clean architecture, and powerful CLI tools

Works with npx workspai (bridge) or direct Python commands

Install from PyPI View on GitHub Documentation

Quick InstallLatest

poetry add rapidkit-core

pip install rapidkit-core

pipx install rapidkit-core

Everything you need to build production apps

Comprehensive feature set for building scalable and maintainable FastAPI applications

Smart Module System

Install production-ready modules with automatic integration.

Automatic dependency resolution
Snippet injection with version control
Auto-mount to routers & registry
Feature-based configuration

Multiple Architectures

Choose the architecture that fits your needs.

FastAPI Standard - Full-featured
FastAPI DDD - Domain-Driven Design
NestJS Standard - TypeScript ready
Profile-aware module installation

Production Module Catalog

Comprehensive module library for enterprise apps.

Authentication (JWT, OAuth2, API Keys)
Databases (PostgreSQL, MongoDB, Redis)
Storage (S3, Local, MinIO)
Real-time (WebSocket, SSE, Pub/Sub)

Enterprise Features

Production-ready features out of the box.

Health probes & readiness checks
Structured logging (JSON)
Migrations & rollback support
Module signing & verification

Professional Tooling

Complete development lifecycle tools.

Interactive TUI for management
Project doctor & diagnostics
Snapshot & checkpoint system
Module diff & upgrade tracking

Developer Experience

Built for productivity and maintainability.

Interactive module installation wizard
Configuration templates
Hot reload in development
Comprehensive test coverage

Choose your architecture

Start with the architecture that fits your project needs

Standard Architecture

Recommended

Perfect for most applications with clean separation of concerns

app/ - Application layer (routers, dependencies)

domain/ - Business logic and entities

infrastructure/ - Database, external services

modules/ - Feature-based organization

DDD Architecture

Enterprise

Domain-Driven Design for complex business domains

domain/ - Entities, value objects, aggregates

application/ - Use cases and services

infrastructure/ - Repositories and adapters

presentation/ - API endpoints and schemas

Powerful CLI Tools

Comprehensive command-line interface for all your development needs

npx workspai my-workspace

Create a governed workspace with shared tooling

cd ./existing-app && npx workspai adopt .

npx workspai create project nextjs web

Create a Next.js app via the npm CLI bridge

npx workspai create project fastapi.standard my-api

Create a Core-backed FastAPI project

npx workspai add module redis

Install module with automatic integration

npx workspai modules list

Browse spec-compliant free-tier modules

npx workspai dev

Start dev server (bridge - works anywhere)

rapidkit dev

Start dev server (direct - inside workspace)

rapidkit doctor

Diagnose environment and project health

rapidkit --tui

Launch interactive terminal UI

Smart Module Installation

Automatic integration with version control and dependency resolution

Automatic Integration

✓Files created/overwritten in project structure
✓Auto-mount to routers and registries
✓Health probes automatically registered
✓Dependencies added to pyproject.toml

Snippet Injection

✓Environment variables to .env files
✓Settings fields to configuration
✓Version tracking for updates
✓Skip already injected snippets

Dependency Resolution

✓Automatic dependency chain detection
✓Install required modules first
✓Profile-aware module configuration
✓Feature flags for customization

Safety & Rollback

✓Module signing & verification
✓Rollback to previous state
✓Checkpoint system for snapshots
✓Detailed installation summary

Installation Output Example

$ npx workspai add module free/cache/redis

✔ Detected profile: fastapi/standard

[pkg] Installing module: free/redis v0.1.8

Dependency chain: settings → redis

✔ Files created: 10 | Snippets injected: 4

✔ Auto-mounted to registry & health probes

[done] Module installed successfully!

Get started in 5 steps

From installation to production-ready application

Create Workspace

NPM package sets up workspace & installs Python core

npx workspai my-workspace

Activate Environment

Enter the Python environment

cd my-workspace && source $(poetry env info --path)/bin/activate

Create or Adopt Project

Scaffold a backend kit or adopt an existing repo with adopt

npx workspai create project fastapi.standard api

Add Modules

Install modules with auto-integration

cd my-api && npx workspai add module free/cache/redis

Start Development

Bridge to Python dev server (direct works inside workspace)

npx workspai dev

Ready to build something amazing?

Join developers who are building production-ready FastAPI applications with RapidKit Core

Get Started Explore Modules