The Manual Attendance Nightmare

greytHR is one of the most popular payroll and HRMS platforms in India, used by thousands of businesses. However, your greytHR software is in the cloud, and your biometric machine is sitting at your office gate.

If they are not integrated, your HR admin has to manually download a CSV file from the biometric machine, format the columns in Excel, fix the missing punches, and upload it to greytHR every month. This manual process wastes hours, causes payroll delays, and leads to endless employee disputes over late marks and overtime.

The Solution: Real-Time Data Sync

We configure your existing eSSL, ZKTeco, or Matrix hardware to communicate directly with your greytHR account. When an employee punches in, the data travels securely over your office network or the internet and updates their attendance record in greytHR instantly.

How We Connect Your Hardware to greytHR

Since greytHR is a cloud-based platform, there are three ways to bridge the gap between your physical machine and the software. We implement the best one based on your IT infrastructure:

1. Push-Based Integration (ADMS/WDMS): If your biometric device supports ADMS (Automatic Data Master Server), we configure it to push data directly to greytHR’s cloud API over the internet. This is the cleanest and most hands-free method.

2. SDK / Middleware Integration: If your machine is older and does not support direct cloud push, we install a lightweight middleware software on a local office PC. This software reads the logs from the machine and pushes them to greytHR.

3. API-Based Sync: For custom setups, we use greytHR’s open API to create a secure, automated sync schedule (e.g., every 15 minutes).

What We Configure During the Setup

Integration is not just about a network cable. We ensure the raw data is interpreted correctly by greytHR:

• Employee Mapping: We map the biometric User ID of every employee to their unique greytHR Employee ID.

• Shift & Roster Rules: We ensure the raw punches from the machine are correctly interpreted by greytHR based on your day, night, and rotational shift policies.

• Leave & Holiday Sync: We configure the system so employees on approved leave in greytHR are not marked absent if they don’t punch in.

• Overtime (OT) Rules: We ensure pre-shift and post-shift overtime punches are captured accurately and passed to greytHR for payroll calculation.

Why Choose Us? Local Presence + Technical Expertise

You could hire a remote freelancer to set up an API, but if your office network crashes, they can’t help you.

We are a physical systems integrator based in Delhi NCR. We understand the hardware (eSSL, ZKTeco), the networking (LAN, Wi-Fi, Firewalls), and the software (greytHR). If there is a physical wiring issue or a local network block, our technicians can visit your office in Gurugram, Delhi, or Noida to fix it on-site.

(For clients outside Delhi NCR, we provide complete remote integration and support).

HRMS & Software We Support

We provide integration services for all major Indian and global HRMS platforms:

• Primary Integrations: greytHR, Keka, RazorpayX, HROne.

• Enterprise ERPs: SAP, Oracle, Microsoft Dynamics.

• Other Software: Zoho People, Spine HR, and custom in-house ERPs.

• Biometric Brands: eSSL, ZKTeco, Matrix, Hikvision, Suprema.

Areas We Serve

On-Site Integration & Support: Delhi NCR (Gurugram, Delhi, Noida, Greater Noida, Ghaziabad, Faridabad).
Remote Integration: Pan-India.

Frequently Asked Questions

Can you integrate our existing (old) eSSL machine with greytHR?

Yes. As long as the machine is functional and has network capabilities, we can usually integrate it with greytHR using our SDK or middleware solutions. You do not necessarily need to buy new hardware.

Does this integration require a dedicated computer to be left on?

It depends on the method. If your machine supports direct cloud push (ADMS), no computer is needed. If we use a middleware sync method, a basic office PC needs to be left on during working hours to act as the bridge.

What happens if the internet goes down?

Your biometric machine will continue to store punches locally in its memory. Once the internet connection is restored, the machine or middleware will automatically push the backlog of punches to greytHR. No data is lost.

Is the data secure?

Yes. We use secure API tokens and encrypted connections. We do not store your employee data on third-party servers; the data flows directly from your device to your greytHR account.

How long does the integration take?

A standard setup for a single machine and basic shift rules usually takes 3 to 5 working days, including testing and HR training. Complex multi-location setups take longer.