diff --git a/packages/plugin-ext/src/common/plugin-api-rpc.ts b/packages/plugin-ext/src/common/plugin-api-rpc.ts
index c0ce507624058..6c7dcb776e78c 100644
--- a/packages/plugin-ext/src/common/plugin-api-rpc.ts
+++ b/packages/plugin-ext/src/common/plugin-api-rpc.ts
@@ -1436,12 +1436,19 @@ export interface SerializedEnterAction {
     removeText?: number;
 }
 
+export interface SerializedAutoClosingPair {
+    open: string;
+    close: string;
+    notIn?: string[];
+}
+
 export interface SerializedLanguageConfiguration {
     comments?: CommentRule;
     brackets?: CharacterPair[];
     wordPattern?: SerializedRegExp;
     indentationRules?: SerializedIndentationRule;
     onEnterRules?: SerializedOnEnterRule[];
+    autoClosingPairs?: SerializedAutoClosingPair[]
 }
 
 export interface CodeActionDto {
diff --git a/packages/plugin-ext/src/main/browser/languages-main.ts b/packages/plugin-ext/src/main/browser/languages-main.ts
index 9d128eda986ac..6b6dcbbe6d5fb 100644
--- a/packages/plugin-ext/src/main/browser/languages-main.ts
+++ b/packages/plugin-ext/src/main/browser/languages-main.ts
@@ -167,6 +167,7 @@ export class LanguagesMainImpl implements LanguagesMain, Disposable {
             wordPattern: reviveRegExp(configuration.wordPattern),
             indentationRules: reviveIndentationRule(configuration.indentationRules),
             onEnterRules: reviveOnEnterRules(configuration.onEnterRules),
+            autoClosingPairs: configuration.autoClosingPairs
         };
 
         this.register(handle, monaco.languages.setLanguageConfiguration(languageId, config));
diff --git a/packages/plugin-ext/src/plugin/languages-utils.ts b/packages/plugin-ext/src/plugin/languages-utils.ts
index d52f922f42ed8..96d033d605b8b 100644
--- a/packages/plugin-ext/src/plugin/languages-utils.ts
+++ b/packages/plugin-ext/src/plugin/languages-utils.ts
@@ -15,7 +15,8 @@
 // *****************************************************************************
 
 import * as theia from '@theia/plugin';
-import { SerializedIndentationRule, SerializedOnEnterRule, SerializedRegExp } from '../common';
+import { SerializedAutoClosingPair, SerializedIndentationRule, SerializedOnEnterRule, SerializedRegExp } from '../common';
+import { SyntaxTokenType } from './types-impl';
 
 export function serializeEnterRules(rules?: theia.OnEnterRule[]): SerializedOnEnterRule[] | undefined {
     if (typeof rules === 'undefined' || rules === null) {
@@ -54,3 +55,16 @@ export function serializeIndentation(indentationRules?: theia.IndentationRule):
         unIndentedLinePattern: serializeRegExp(indentationRules.unIndentedLinePattern)
     };
 }
+
+export function serializeAutoClosingPairs(pairs: theia.AutoClosingPair[] | undefined): SerializedAutoClosingPair[] | undefined {
+    if (!pairs) {
+        return undefined
+    };
+    return pairs.map(pair => {
+        return {
+            open: pair.open,
+            close: pair.close,
+            notIn: pair.notIn ? pair.notIn.map(tokenType => SyntaxTokenType.toString(tokenType)) : undefined
+        }
+    });
+}
\ No newline at end of file
diff --git a/packages/plugin-ext/src/plugin/languages.ts b/packages/plugin-ext/src/plugin/languages.ts
index 4c76438096351..1eab19d5b55fa 100644
--- a/packages/plugin-ext/src/plugin/languages.ts
+++ b/packages/plugin-ext/src/plugin/languages.ts
@@ -108,7 +108,7 @@ import { isReadonlyArray } from '../common/arrays';
 import { DisposableCollection, disposableTimeout, Disposable as TheiaDisposable } from '@theia/core/lib/common/disposable';
 import { Severity } from '@theia/core/lib/common/severity';
 import { LinkedEditingRangeAdapter } from './languages/linked-editing-range';
-import { serializeEnterRules, serializeIndentation, serializeRegExp } from './languages-utils';
+import { serializeAutoClosingPairs, serializeEnterRules, serializeIndentation, serializeRegExp } from './languages-utils';
 import { InlayHintsAdapter } from './languages/inlay-hints';
 import { InlineCompletionAdapter, InlineCompletionAdapterBase } from './languages/inline-completion';
 import { DocumentDropEditAdapter } from './languages/document-drop-edit';
@@ -208,7 +208,8 @@ export class LanguagesExtImpl implements LanguagesExt {
             comments: configuration.comments,
             onEnterRules: serializeEnterRules(configuration.onEnterRules),
             wordPattern: serializeRegExp(configuration.wordPattern),
-            indentationRules: serializeIndentation(configuration.indentationRules)
+            indentationRules: serializeIndentation(configuration.indentationRules),
+            autoClosingPairs: serializeAutoClosingPairs(configuration.autoClosingPairs)
         };
 
         this.proxy.$setLanguageConfiguration(callId, language, config);
diff --git a/packages/plugin-ext/src/plugin/plugin-context.ts b/packages/plugin-ext/src/plugin/plugin-context.ts
index f972127dbec48..60c357b66e25a 100644
--- a/packages/plugin-ext/src/plugin/plugin-context.ts
+++ b/packages/plugin-ext/src/plugin/plugin-context.ts
@@ -57,6 +57,7 @@ import {
     StatusBarAlignment,
     RelativePattern,
     IndentAction,
+    SyntaxTokenType,
     CompletionItem,
     CompletionItemKind,
     CompletionList,
@@ -1225,6 +1226,7 @@ export function createAPIFactory(
             ConfigurationTarget,
             RelativePattern,
             IndentAction,
+            SyntaxTokenType,
             CompletionItem,
             CompletionItemKind,
             CompletionList,
diff --git a/packages/plugin-ext/src/plugin/types-impl.ts b/packages/plugin-ext/src/plugin/types-impl.ts
index 6550b577f1172..0ef339ae03b8f 100644
--- a/packages/plugin-ext/src/plugin/types-impl.ts
+++ b/packages/plugin-ext/src/plugin/types-impl.ts
@@ -845,6 +845,38 @@ export enum IndentAction {
     Outdent = 3
 }
 
+export namespace SyntaxTokenType {
+    export function toString(v: SyntaxTokenType | unknown): 'other' | 'comment' | 'string' | 'regex' {
+        switch (v) {
+            case SyntaxTokenType.Other: return 'other';
+            case SyntaxTokenType.Comment: return 'comment';
+            case SyntaxTokenType.String: return 'string';
+            case SyntaxTokenType.RegEx: return 'regex';
+        }
+        return 'other';
+    }
+}
+
+export enum SyntaxTokenType {
+    /**
+     * Everything except tokens that are part of comments, string literals and regular expressions.
+     */
+    Other = 0,
+    /**
+     * A comment.
+     */
+    Comment = 1,
+    /**
+     * A string literal.
+     */
+    String = 2,
+    /**
+     * A regular expression.
+     */
+    RegEx = 3
+}
+
+
 @es5ClassCompat
 export class TextEdit {
 
diff --git a/packages/plugin/src/theia.d.ts b/packages/plugin/src/theia.d.ts
index 15e5c628c7c90..dab5c10d6ab18 100644
--- a/packages/plugin/src/theia.d.ts
+++ b/packages/plugin/src/theia.d.ts
@@ -8038,6 +8038,43 @@ export module '@theia/plugin' {
         unIndentedLinePattern?: RegExp;
     }
 
+    export enum SyntaxTokenType {
+        /**
+         * Everything except tokens that are part of comments, string literals and regular expressions.
+         */
+        Other = 0,
+        /**
+         * A comment.
+         */
+        Comment = 1,
+        /**
+         * A string literal.
+         */
+        String = 2,
+        /**
+         * A regular expression.
+         */
+        RegEx = 3
+    }
+
+    /**
+     * Describes pairs of strings where the close string will be automatically inserted when typing the opening string.
+     */
+    export interface AutoClosingPair {
+        /**
+         * The string that will trigger the automatic insertion of the closing string.
+         */
+        open: string;
+        /**
+         * The closing string that will be automatically inserted when typing the opening string.
+         */
+        close: string;
+        /**
+         * A set of tokens where the pair should not be auto closed.
+         */
+        notIn?: SyntaxTokenType[];
+    }
+
     /**
      * The language configuration interfaces defines the contract between extensions
      * and various editor features, like automatic bracket insertion, automatic indentation etc.
@@ -8077,6 +8114,10 @@ export module '@theia/plugin' {
          */
         onEnterRules?: OnEnterRule[];
 
+        /**
+         * The language's auto closing pairs.
+         */
+        autoClosingPairs?: AutoClosingPair[];
     }
 
     /**