HLD for Developers

Documentation

Everything you need to build on top of HLD platforms — REST APIs, webhook delivery, system integrations, and reference docs.

Getting Started

Authenticate, make your first API call, and understand the core concepts in under 10 minutes.

Programmatic access to tenants, alerts, devices, identity, and compliance data.

Query incidents, trigger response actions, and integrate Sentinel into your SOC workflows.

Real-time event delivery for security events, alert state changes, and compliance triggers.

Connect HLD platforms to Cloudflare, AWS, Azure, Stripe, SIEM tools, and identity providers.

Rate limits, error codes, and the full API changelog.

Base URL

https://api.hldgroup.org/v1

All API requests must be made over HTTPS. HTTP requests will be rejected. Authentication is via Bearer token in the Authorization header.