# SDK Feature Matrix by Category

## Maturity levels

Maturity levels indicate the extent of development on a generation target.

## Feature support levels

Feature support levels indicate the extent of additional functionalities provided.

## Deprecated generation targets

- TypeScript Beta (v1)
- Java Beta (v1)

## SDK Feature Matrix by Category

This document outlines the OpenAPI and SDK features supported by Speakeasy. Features are grouped by category to help quickly locate what's available per SDK.

**Legend**:

- ✅ Implemented
- ⚠️ Partially Implemented (missing Readme sections or tests)
- ⛔ Not Implemented
- ➖ Ignored

_Note: This is not a complete list. Some SDK features are language-specific or not yet documented here._

## Customization Basics

## Structure

## Data Model

## Customize Methods

## Responses & Error Handling

## Global Parameters

## Configure Servers

## Security & Authentication

## SDK Behavior

## Add Webhooks

## Add Custom Code

## Environment

## Documentation & Dev Experience