PunchConnect Blog

Guides, deep dives, and engineering insights on biometric device integration and workforce APIs.

Setting Up Webhooks Without a Static IP

A step-by-step guide using the PunchConnect API to set up real-time attendance webhooks without managing local servers or static IPs.

Engineering Team·Mar 3, 2026·8 min read

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Comparison

CAMS vs PunchConnect: An Honest Comparison

A side-by-side breakdown of CAMS and PunchConnect — architecture, pricing, flexibility, and what matters for developers building attendance systems.

Product Team

5 min read

Tutorial

ZKTeco Push Protocol Explained

A deep dive into how ZKTeco devices communicate using the push protocol — packet structure, handshake flow, and why most open-source libraries get it wrong.

Engineering Team

10 min read

Engineering

Why Open-Source ZKTeco Libraries Won't Scale

We tested 6 popular open-source ZKTeco libraries in production. Here's what broke at 50+ devices and why we built our own protocol engine.

Engineering Team

6 min read

Engineering

Designing a Biometric Attendance API

The architecture decisions behind PunchConnect's API — from webhook delivery guarantees to idempotent device commands and rate limiting strategy.

Engineering Team

12 min read

Tutorial

Real-Time Attendance in Your ERP

How to pipe live attendance data from biometric devices into ERPs like Odoo, SAP, or your custom HRMS using PunchConnect webhooks.

Product Team

7 min read

Case Study

Managing 50+ Devices Across Multiple Sites

Lessons from AgriWise's deployment of 80+ biometric devices across agricultural sites — monitoring, failover, and remote management at scale.

Product Team

4 min read

Engineering

Securing Biometric Data in Transit

How PunchConnect encrypts attendance data end-to-end — TLS 1.3, AES-256 at rest, HMAC-SHA256 webhook signatures, and why it matters for compliance.

Engineering Team

9 min read

Company

From Internal Tool to API Product

The story of how we turned AgriWise's internal biometric engine into PunchConnect — a commercial API serving thousands of devices.

Founding Team

6 min read

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