# Hifisys Enterprise HRMS Suite API Reference

> **Version:** 1.0.0 | **Base URL:** `https://hifisys.com/api/v1` | **Provider:** Hifisys

## Overview
Full-featured enterprise web software for workforce lifecycle management, biometric/web attendance, shift scheduling, leave approvals, payroll generation, recruitment ATS, and Employee Self-Service (ESS) portal.

## Authentication
All requests require a valid API key passed in the request header:
```http
X-API-Key: YOUR_API_KEY
Accept: application/json
```
Alternatively, pass as a standard Bearer token:
```http
Authorization: Bearer YOUR_API_KEY
```

## Available Subscription Plans
| Plan | Price | Rate Limit | Monthly Quota | Trial |
|---|---|---|---|---|
| Standard Annual License | USD 499.00/year | 60 req/min | 10,000 | No |
| Enterprise Perpetual License | USD 1499.00/one_time | 60 req/min | 10,000 | No |

## API Endpoints

## Security Best Practices
- Store API keys in environment variables; never commit to public VCS repositories.
- Enforce TLS 1.3 across all client integrations.
- Implement exponential backoff algorithms for rate-limit handling (HTTP 429).

## Support & Contact
- **Email:** info@hifisys.com
- **Phone:** +91 8890897064
- **Website:** [Hifisys](https://hifisys.com)