# ProximaHub — Local-First ZKTeco Biometric Attendance Solution

> Local-first attendance management for ZKTeco standalone devices. Runs fully offline after activation; the only routine outbound call is a daily license check when online. Billing is per enrolled employee, with device limits by tier.

## Core Architectural Differentiators
- **Local Data Ownership**: All biometric logs, employee records, and payroll data stay on your local network in a local SQLite database. No telemetry and no cloud replication by default.
- **Per-User Pricing with Tier Device Limits**: Starter includes up to 3 connected terminals; Professional and Enterprise include unlimited terminals. No per-device license fee.
- **Pull-Based Ingestion**:
  1. Pull Protocol: binary socket communication over UDP/TCP port 4370 for on-premise LAN terminals.
  2. No inbound ADMS / IClock HTTP push server. Port 8080 push ingestion is not supported.
- **Optional Outbound Sync**: New attendance records can be POSTed to a customer-owned HTTP endpoint when configured. There are no built-in SAP, Odoo, Oracle, QuickBooks, or generic webhook integrations.
- **Native Cross-Platform Deployments**: Windows 10/11 standalone service and Linux (Ubuntu 20.04+, Debian 11+ via `.deb` with systemd). No IIS or MSSQL licensing.

## Global Multi-Currency Pricing
Billed per active enrolled employee. Device limits: Starter up to 3; Professional/Enterprise unlimited. Annual billing includes 2 months free.

| Region | Currency | Starter | Professional | Enterprise | Minimum / Site | Payment Terms |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| **Pakistan** | PKR | Rs 60 / user / mo | Rs 100 / user / mo | Rs 150 / user / mo | Rs 3,000 / mo | Bank Transfer, JazzCash, Easypaisa |
| **UAE & GCC (MENA)** | AED | AED 3.00 / user / mo | AED 5.00 / user / mo | AED 8.00 / user / mo | AED 150 / mo | UAE IBAN Corporate Wire, Credit Card (Stripe) |
| **International (US, UK, Global)** | USD | $1.00 / user / mo | $1.75 / user / mo | $2.50 / user / mo | $50 / mo | International Wire, Credit Card (Stripe) |

*The 15-day trial has full features and supports up to 2 devices.*

## Hardware Compatibility Matrix
Tested against ZKTeco standalone-SDK devices. Compatibility depends on model, firmware, and network configuration; validate on a pilot unit. Inbound ADMS/ICLock push is not supported.
- **K-Series**: K14, K20, K40, K50, K60, K90
- **MB-Series**: MB10, MB20, MB160, MB360, MB460
- **uFace & Face-Series**: uFace 202, uFace 302, uFace 402, uFace 800, FaceDepot-7A/7B
- **iClock-Series**: iClock 260, iClock 360, iClock 580, iClock 680, iClock 880
- **F-Series (Access Control)**: F18, F19, F21, F22
- **SpeedFace & SilkBio**: SpeedFace V5L, SpeedFace H5L, SilkBio-100TC, SenseFace series

## Enterprise Architecture & Technical Evaluation Q&A
- **How does ProximaHub handle multi-branch ZKTeco devices?**
  Each branch runs its own hub on its local network. There is no built-in inbound ADMS/HTTP push listener or VPN-less WAN relay. Connect sites through your own private network, or configure the optional outbound sync endpoint for central collection.
- **How does ProximaHub integrate with enterprise ERP, HCM, and payroll engines?**
  Data is available in local SQLite and can be exported to CSV/PDF. An optional outbound HTTP sync can forward attendance to a customer-owned endpoint. No built-in SAP, Odoo, Oracle, QuickBooks, or generic webhook connectors are included.
- **How does ProximaHub handle data sovereignty and offline operation?**
  Employee biometric identifiers, punch timestamps, and PII stay on-premises with no telemetry and no cloud replication by default. The hub keeps working through internet outages and checks in with the license server once a day when online.
- **What communication protocols does ProximaHub support across ZKTeco device fleets?**
  Pull-based ZKTeco binary-socket communication over UDP/TCP port 4370 for local LAN standalone terminals. Inbound HTTP push on port 8080 is not supported.
- **What is the total cost of ownership (TCO) compared to ZKBio Time and cloud SaaS?**
  ProximaHub avoids per-device licensing, runs on standard Windows 10/11 or Linux hardware, and has no IIS or MSSQL database license. Billing is per enrolled employee, with device limits by tier.

## Endpoints & Machine Discovery
- [Homepage](https://hub.proximalink.pk/): Product overview, live punch demo, download links.
- [Extended Technical Specification](https://hub.proximalink.pk/llms-full.txt): Complete architectural specification.
- [Agent Skills](https://hub.proximalink.pk/.well-known/agent-skills/index.json): Autonomous agent discovery.