Universal Windows fiscal connector

Connect any business system to VFD receipt signing without embedding API Provider credentials in your application.

VFDToolkitTz runs locally as a secured Windows service, queues transactions safely, fiscalizes receipts through configured API Provider environments, prints 58 mm and 80 mm receipts, and exposes one consistent localhost API to every supported platform.

Download VFDToolkitTz Contact integration support
Toolkit Connector SDK

One secure Windows bridge for every ERP, POS and invoicing platform.

VFDToolkitTz keeps provider credentials on the licensed Windows computer, exposes a signed localhost API, queues transactions safely during unstable connectivity and prints genuine fiscalized receipts only after the configured VFD provider returns verification data.

Register to download installer 33downloads Register to download SDK bundle 15downloads Developer API page Request integration support

Windows 10/11 · Version 1.3.1 · Annual device-bound activation · Background-service heartbeat protection.

A registered TelPOS Developer account and verified email are required for every installer and SDK download. Verified users receive the protected SDK access link by email. The confidential installation PIN is supplied only after contacting info@telpos-lite.app or +255 758 620 542.

Supported integrations

VFD Toolkit Integration API

Use the same authenticated localhost contract from your preferred language. Each SDK signs requests, supplies idempotency references and interprets transaction state consistently.

PHP

Drop-in client for plain PHP applications.

Laravel

Service-class integration for Laravel projects.

Node.js

Server-side SDK for Node applications.

JavaScript

Browser and desktop JavaScript connector.

C#

.NET client for Windows and enterprise systems.

Java

Typed Java client for desktop and server products.

Python

Lightweight Python integration client.

Flutter

Dart client for Flutter POS and ERP apps.

Go

Native Go client for high-volume services.

1

Install and activate the licensed Windows toolkit.

2

Connect the VFD account and retrieve registration details.

3

Choose an ERP preset or create a third-party client, then pair with one code.

4

Submit, monitor, print and reconcile fiscal receipts safely.

Version 1.3.1

Reliable activation across the desktop app and Windows service.

The toolkit keeps one upgrade-safe device identity, synchronizes a successful desktop activation into the background connector, retries temporary license-server interruptions with controlled backoff, and immediately honors an authoritative expiry, suspension or device mismatch. Version 1.2.6 adds the official TRA receipt hierarchy, complete taxpayer and customer registration sections, polished Z reports, automatic background capture from paired ERP/POS clients and a compact bottom-right approval window when the toolkit is minimized or closed to the tray.

Local API contract

Built for safe, repeatable fiscalization

The service binds to localhost only. Clients use a stable external reference, a unique request nonce and an HMAC-SHA256 signature so retries are idempotent and replay attempts are rejected.

POST http://127.0.0.1:47821/api/v1/fiscalize GET  http://127.0.0.1:47821/api/v1/transactions/{id} GET  http://127.0.0.1:47821/api/v1/health

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Info email

info@telpos-lite.app

Support email

support@telpos-lite.app

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