Professional developer infrastructure for the Stellar ecosystem.
SaviTools is the foundational engineering layer of the Savitura ecosystem — a developer workstation for builders creating payment systems, wallets, settlement infrastructure, and fintech applications on Stellar.
"Stripe + Vercel + Postman — for Stellar developers."
Savitura
├── Fluxa — Payments API, checkout infrastructure, treasury
├── CrowdPay — Crowdfunding and collaborative funding
└── SaviTools — Developer tooling, wallet infra, simulators, webhooks
| Module | Description | Status |
|---|---|---|
| Transaction Inspector | Decode, visualize, and annotate Stellar transactions and XDR | MVP |
| Wallet Sandbox | Generate keypairs, fund testnet accounts, manage trustlines | MVP |
| Transaction Composer | Visual builder for multi-operation Stellar transactions | MVP |
| Webhook Infrastructure | Real-time Stellar event subscriptions with retry delivery | MVP |
| Payment Simulator | Simulate path payments, preview routing and fee estimates | Planned |
| Multi-Sig Builder | Signer configuration, threshold management, policy testing | Planned |
| Trustline Manager | Create/remove trustlines, asset discovery, limit management | Planned |
| Ledger Monitor | Operational observability, transaction streams, analytics | Planned |
| API Playground | Interactive Horizon query builder with response visualization | Planned |
- Next.js 15 (App Router)
- TypeScript
- Tailwind CSS
- shadcn/ui (Radix UI primitives)
- NestJS (Fastify adapter)
- TypeORM + PostgreSQL
- BullMQ + Redis (webhook job queue)
- @stellar/stellar-sdk (Horizon API)
- Swagger (OpenAPI docs at
/api/docs)
- Turborepo monorepo
- Docker Compose (local Postgres + Redis)
- Railway (initial deploy) → DigitalOcean (scale)
savitools/
├── apps/
│ ├── web/ # Next.js frontend
│ │ └── src/
│ │ ├── app/
│ │ │ ├── inspector/ # Transaction Inspector
│ │ │ ├── sandbox/ # Wallet Sandbox
│ │ │ ├── composer/ # Transaction Composer
│ │ │ └── webhooks/ # Webhook Infrastructure
│ │ ├── components/ # Shared UI components
│ │ └── lib/
│ │
│ └── api/ # NestJS backend
│ └── src/
│ ├── modules/
│ │ ├── transaction/ # Transaction decoding & inspection
│ │ ├── wallet/ # Wallet generation & testnet provisioning
│ │ ├── webhook/ # Webhook subscriptions & delivery
│ │ └── simulator/ # Payment path simulation
│ ├── app.module.ts
│ └── main.ts
│
├── packages/ # Shared packages (types, utilities)
├── docker-compose.yml
├── turbo.json
└── .env.example
- Node.js >= 20
- Docker (for local Postgres + Redis)
npm installcp .env.example .env
# Edit .env with your valuesdocker compose up -dnpm run dev| Service | URL |
|---|---|
| Frontend | http://localhost:3000 |
| API | http://localhost:3001/api |
| Swagger Docs | http://localhost:3001/api/docs |
The REST API is versioned under /api/v1/. Full interactive documentation is available at /api/docs when the API server is running.
GET /api/v1/transactions/:hash Inspect and decode a transaction
POST /api/v1/wallet/generate Generate a new Stellar keypair
POST /api/v1/wallet/fund Fund a testnet account via Friendbot
POST /api/v1/webhooks Register a webhook endpoint
GET /api/v1/webhooks List registered webhooks
DELETE /api/v1/webhooks/:id Remove a webhook
POST /api/v1/simulator/payment Simulate a payment path
GET /api/health Health check
payment.received
payment.sent
trustline.created
account.updated
asset.received
transaction.confirmed
# Frontend only
cd apps/web && npm run dev
# Backend only
cd apps/api && npm run devnpm run buildnpm run lintnpm run format| Phase | Model | Components |
|---|---|---|
| 1 — Adoption | Free | Inspector, Composer, Wallet Sandbox |
| 2 — Infrastructure | Usage-based | Webhook infra, hosted APIs, analytics |
| 3 — Enterprise | Subscription | Dedicated infra, SLAs, treasury tooling |
SaviTools is not a standalone product — it is the engineering foundation powering:
- Fluxa — payment infrastructure and checkout
- CrowdPay — collaborative funding infrastructure
Everything built here strengthens the entire Savitura ecosystem.
Private — Savitura. All rights reserved.