# Quinn CRM Documentation

> AI-powered customer relationship management for equipment rental businesses

## Quick Links

- Introduction: /introduction
- Quickstart Guide: /quickstart
- API Reference: /api-reference/introduction
- Authentication: /authentication

## Core Features

### Customer Management
Unified contact database with automatic enrichment, lifetime value tracking, and AI-powered insights.

### AI Capabilities
- Task extraction from calls and emails
- Lead scoring (0-7 scale)
- Revenue prediction
- Sentiment analysis

### Communications
- Voice calls via Twilio/Aircall
- 24/7 AI voice agent (Vapi)
- 2-way email sync (Gmail/Outlook)
- SMS messaging

### Sales Pipeline
Visual pipeline management with AI-powered stage drift detection and revenue forecasting.

### Integrations
Twilio, Aircall, Gmail, Outlook, Vapi, OpenAI, Snowflake, Ocean.io, LeadMagic, Mapbox

## API Overview

432 RESTful endpoints across 69 categories:
- Authentication
- Customers & Leads
- Opportunities
- Tasks
- Inventory & Transactions
- Communications
- Analytics

Authentication: Session-based with HTTP-only cookies

## Key Concepts

**Multi-Tenant:** All data scoped to organizationId
**Contacts:** Unified system for customers, leads, unknown contacts
**AI-Native:** GPT-4 powers task extraction, scoring, predictions
**Real-Time:** Webhooks for instant updates

## Popular Endpoints

- POST /api/auth/login - Authenticate user
- GET /api/customers - List customers
- POST /api/leads - Create lead
- GET /api/opportunities - View pipeline
- POST /api/tasks - Create task

## Integration Guides

- Twilio Setup: /integrations/twilio
- Gmail Sync: /integrations/gmail
- Vapi Voice Agent: /guides/voice-agent-setup
- Snowflake Import: /integrations/snowflake

## Support

- Email: support@quinn.app
- Documentation: https://docs.quinn.app
- API Playground: Interactive testing on all endpoint pages