AI-Ready CRM System

A complete Customer Relationship Management (CRM) system built entirely in n8n using REST-style Webhook APIs.

ROLE

Automation Engineer & Backend Architect

PLATFORM

n8n

IMPACT

Custom CRM backend automation

KEY METRICS

~110–120

Total Nodes

API-Driven / Stateless

Architecture

5 Entity Lanes

CRUD Layers

ARCHITECTURE

CRM API Architecture

Frontend App
└── n8n Webhook API Layer
    ├── Accounts Entity (CRUD)
    ├── Contacts Entity (CRUD)
    ├── Leads Entity (CRUD)
    ├── Opportunities Entity (CRUD)
    └── Activities Entity (CRUD)

Workflow breakdown

PHASE 01

Modular CRUD Architecture

Organized vertical API lanes for CRM entities

REST-style Webhook endpoints for all operations
Full CRUD database operations (Create, List, Update, Delete)
Stateless execution with structured JSON responses
Validation and business logic handled at the n8n layer

~ ~100 nodes for CRUD

PHASE 02

Data Modeling & Integration

Relational data management for CRM entities

Relational links: Account → Contacts → Leads
Opportunity and Activity tracking logic
Frontend communication via standard API patterns
Scalable SaaS-ready infrastructure design

Technical highlights

API Design Principles

Frontend-controlled UX via API responses
Modular, scalable workflow design
Stateless webhook execution
Token-based access and authentication ready

Why this matters

Proves n8n can serve as a full software backend

Demonstrates advanced data modeling without a server

Shows clean, modular software engineering in low-code

Provides a scalable foundation for SaaS applications

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