Link Identity Platform¶
Document status
Version 14.0
The authoritative reference for the Link Identity Platform — its functional requirements, architecture, data models, API specifications, and integration patterns. It is the foundation every other Link product consumes for authentication, palm verification, KYC, device management, multi-tenancy, and compliance. Implementation code is intentionally excluded; this captures the what and why, not the how.
How this is organized¶
A capability-first build guide grouped into six parts. Each capability reads end-to-end — concept → behavior → flows — with its sequence diagrams inlined and links into the reference lookups.
- Part I · Orientation
What the platform is, the glossary, and the identity domains, access-control trust model, and admin console.
- Part II · Platform Foundations
The cross-cutting model every capability touches: multi-tenancy and configuration.
- Part III · Capabilities
Authentication, palm verification & flows, device management (mTLS), the broker, compliance, and webhooks.
- Part IV · Interfaces & Reference
The lookups — every endpoint, the data model, every error code, every event.
→ API · Data Model · Errors · Events
- Part V · Build & Operate
Deployment architecture and backend repository structure.
- Part VI · Appendix
Reference appendix and the full revision history.