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Fintech Wallet

Fintech Wallet is an MIT-licensed TypeScript and NestJS cloud-native microservices application for digital wallet management, peer-to-peer transfers and digital financial operations. It divides authentication, wallet, transaction, compliance and notification functions into services that use Kafka for asynchronous events, gRPC for synchronous calls, PostgreSQL for persistence and Redis for caching and OTP management.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Fintech Wallet — OpenViST project profile in Wallets.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when a wallet backend needs separable services, Kafka-based event streaming and a cloud-oriented deployment model that the operating team can configure and adapt.

Who it is for

  • Teams building a self-hosted digital wallet backend
  • Fintech developers implementing peer-to-peer transfer workflows
  • Engineering groups needing event-driven financial operations services
  • Organizations adapting a wallet system with documented compliance-service components

Documented uses

  • Manage wallet balances, deposits, withdrawals and audit trails
  • Process peer-to-peer transfers and track transaction status
  • Record financial activity with double-entry ledger bookkeeping
  • Apply risk scoring, transaction monitoring and regulatory checks
  • Coordinate email and SMS notifications across financial events
Before you choose

Requirements & limits

The repository is public and lists an MIT license. The documented operating model uses application services and supporting infrastructure such as PostgreSQL, Redis and Apache Kafka; the material does not specify pricing or a hosted end-user access model.

  • The service architecture is split into authentication, wallet, transaction, compliance and notification domains.
  • Kafka and gRPC support different communication patterns: asynchronous event streaming and synchronous inter-service calls.
  • PostgreSQL and Redis are named as shared infrastructure, with Redis also supporting OTP management.
  • The repository documents Docker, Terraform and AWS components for containerized and infrastructure-as-code workflows.
  • The project is a backend platform and requires teams to assemble and operate its documented dependencies.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Prepare the documented Fintech Wallet stack

Set up the application components described in the repository before adapting or operating the wallet platform.

Before you start

  • A TypeScript and NestJS application environment
  • PostgreSQL
  • Redis
  • Apache Kafka
  • gRPC

Steps

  1. Review the repository architecture and separate the authentication, wallet, transaction, compliance and notification services.

  2. Provide PostgreSQL for persistence and Redis for caching and OTP management.

  3. Configure Apache Kafka for asynchronous event streaming and gRPC for synchronous service communication.

  4. Use Docker and the documented Terraform/AWS tooling when preparing containerized cloud infrastructure.

Expected outcome

A documented component plan for preparing the cloud-native wallet platform and its service dependencies.

Guide limitations

  • The available material describes the architecture and technologies but does not provide complete configuration values, commands or an end-to-end deployment procedure.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
3 October 2026
Original website title
imchine/FinTech-Wallet · Official homepage title · retained in its source language
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