---
title: NSSpellServer
framework: foundation
role: symbol
role_heading: Class
path: foundation/nsspellserver
---

# NSSpellServer

A server that your app uses to provide a spell checker service to other apps running in the system.

## Declaration

```swift
class NSSpellServer
```

## Overview

Overview A service provider is an application that declares its availability in a standard way, so that any other applications that wish to use it can do so. If you build a spelling checker that makes use of the NSSpellServer class and list it as an available service, then users of any application that makes use of NSSpellChecker or includes a Services menu will see your spelling checker as one of the available dictionaries.

## Topics

### Configuring Spelling Servers

- [delegate](foundation/nsspellserver/delegate.md)

### Providing Spelling Services

- [registerLanguage(_:byVendor:)](foundation/nsspellserver/registerlanguage(_:byvendor:).md)
- [run()](foundation/nsspellserver/run().md)

### Managing the Spell-Checking Process

- [isWord(inUserDictionaries:caseSensitive:)](foundation/nsspellserver/isword(inuserdictionaries:casesensitive:).md)

### Constants

- [Grammatical-Analysis Details](foundation/grammatical-analysis-details.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Spelling and Grammar

- [NSSpellServerDelegate](foundation/nsspellserverdelegate.md)