# Estimates API
This directory contains documentation for working with estimates in the Harvest API v2:
1. [Estimate Item Categories](01_estimate_item_categories.md)
- Managing estimate item categories
- Category types and properties
- CRUD operations
2. [Estimate Messages](02_estimate_messages.md)
- Sending estimate messages
- Message templates
- State changes via messages
- Email notifications
3. [Estimates](03_estimates.md)
- Main estimate operations
- Creating and managing estimates
- Managing estimate states
- Line items management
- Estimate properties and attributes