diff --git a/packages/discord.js/src/client/actions/InteractionCreate.js b/packages/discord.js/src/client/actions/InteractionCreate.js
index 434fb0c0689c..ee04fa20bc08 100644
--- a/packages/discord.js/src/client/actions/InteractionCreate.js
+++ b/packages/discord.js/src/client/actions/InteractionCreate.js
@@ -9,6 +9,7 @@ const ChatInputCommandInteraction = require('../../structures/ChatInputCommandIn
 const MentionableSelectMenuInteraction = require('../../structures/MentionableSelectMenuInteraction');
 const MessageContextMenuCommandInteraction = require('../../structures/MessageContextMenuCommandInteraction');
 const ModalSubmitInteraction = require('../../structures/ModalSubmitInteraction');
+const PrimaryEntryPointCommandInteraction = require('../../structures/PrimaryEntryPointCommandInteraction');
 const RoleSelectMenuInteraction = require('../../structures/RoleSelectMenuInteraction');
 const StringSelectMenuInteraction = require('../../structures/StringSelectMenuInteraction');
 const UserContextMenuCommandInteraction = require('../../structures/UserContextMenuCommandInteraction');
@@ -38,6 +39,9 @@ class InteractionCreateAction extends Action {
             if (channel && !channel.isTextBased()) return;
             InteractionClass = MessageContextMenuCommandInteraction;
             break;
+          case ApplicationCommandType.PrimaryEntryPoint:
+            InteractionClass = PrimaryEntryPointCommandInteraction;
+            break;
           default:
             client.emit(
               Events.Debug,
diff --git a/packages/discord.js/src/index.js b/packages/discord.js/src/index.js
index 243f1af41228..a431f41eb16f 100644
--- a/packages/discord.js/src/index.js
+++ b/packages/discord.js/src/index.js
@@ -180,6 +180,7 @@ exports.PartialGroupDMChannel = require('./structures/PartialGroupDMChannel');
 exports.PermissionOverwrites = require('./structures/PermissionOverwrites');
 exports.Poll = require('./structures/Poll').Poll;
 exports.PollAnswer = require('./structures/PollAnswer').PollAnswer;
+exports.PrimaryEntryPointCommandInteraction = require('./structures/PrimaryEntryPointCommandInteraction');
 exports.Presence = require('./structures/Presence').Presence;
 exports.ReactionCollector = require('./structures/ReactionCollector');
 exports.ReactionEmoji = require('./structures/ReactionEmoji');
diff --git a/packages/discord.js/src/managers/ApplicationCommandManager.js b/packages/discord.js/src/managers/ApplicationCommandManager.js
index 8f6ce53106d4..9a8fd2e9d7bc 100644
--- a/packages/discord.js/src/managers/ApplicationCommandManager.js
+++ b/packages/discord.js/src/managers/ApplicationCommandManager.js
@@ -261,6 +261,7 @@ class ApplicationCommandManager extends CachedManager {
       dm_permission: command.dmPermission ?? command.dm_permission,
       integration_types: command.integrationTypes ?? command.integration_types,
       contexts: command.contexts,
+      handler: command.handler,
     };
   }
 }
diff --git a/packages/discord.js/src/structures/ApplicationCommand.js b/packages/discord.js/src/structures/ApplicationCommand.js
index 37eff9e46d5c..9490fab93063 100644
--- a/packages/discord.js/src/structures/ApplicationCommand.js
+++ b/packages/discord.js/src/structures/ApplicationCommand.js
@@ -174,6 +174,18 @@ class ApplicationCommand extends Base {
       this.contexts ??= null;
     }
 
+    if ('handler' in data) {
+      /**
+       * Determines whether the interaction is handled by the app's interactions handler or by Discord.
+       * <info>Only available for {@link ApplicationCommandType.PrimaryEntryPoint} commands on
+       * applications with the {@link ApplicationFlags.Embedded} flag (i.e, those that have an Activity)</info>
+       * @type {?EntryPointCommandHandlerType}
+       */
+      this.handler = data.handler;
+    } else {
+      this.handler ??= null;
+    }
+
     if ('version' in data) {
       /**
        * Autoincrementing version identifier updated during substantial record changes
@@ -216,15 +228,20 @@ class ApplicationCommand extends Base {
    * @property {string} name The name of the command, must be in all lowercase if type is
    * {@link ApplicationCommandType.ChatInput}
    * @property {Object<Locale, string>} [nameLocalizations] The localizations for the command name
-   * @property {string} description The description of the command, if type is {@link ApplicationCommandType.ChatInput}
+   * @property {string} description The description of the command,
+   * if type is {@link ApplicationCommandType.ChatInput} or {@link ApplicationCommandType.PrimaryEntryPoint}
    * @property {boolean} [nsfw] Whether the command is age-restricted
    * @property {Object<Locale, string>} [descriptionLocalizations] The localizations for the command description,
-   * if type is {@link ApplicationCommandType.ChatInput}
+   * if type is {@link ApplicationCommandType.ChatInput} or {@link ApplicationCommandType.PrimaryEntryPoint}
    * @property {ApplicationCommandType} [type=ApplicationCommandType.ChatInput] The type of the command
    * @property {ApplicationCommandOptionData[]} [options] Options for the command
    * @property {?PermissionResolvable} [defaultMemberPermissions] The bitfield used to determine the default permissions
    * a member needs in order to run the command
    * @property {boolean} [dmPermission] Whether the command is enabled in DMs
+   * @property {ApplicationIntegrationType[]} [integrationTypes] Installation contexts where the command is available
+   * @property {InteractionContextType[]} [contexts] Interaction contexts where the command can be used
+   * @property {EntryPointCommandHandlerType} [handler] Whether the interaction is handled by the app's
+   * interactions handler or by Discord.
    */
 
   /**
@@ -419,7 +436,8 @@ class ApplicationCommand extends Base {
         this.descriptionLocalizations ?? {},
       ) ||
       !isEqual(command.integrationTypes ?? command.integration_types ?? [], this.integrationTypes ?? []) ||
-      !isEqual(command.contexts ?? [], this.contexts ?? [])
+      !isEqual(command.contexts ?? [], this.contexts ?? []) ||
+      ('handler' in command && command.handler !== this.handler)
     ) {
       return false;
     }
diff --git a/packages/discord.js/src/structures/BaseInteraction.js b/packages/discord.js/src/structures/BaseInteraction.js
index 4e7ad59e421d..68817b33165e 100644
--- a/packages/discord.js/src/structures/BaseInteraction.js
+++ b/packages/discord.js/src/structures/BaseInteraction.js
@@ -225,6 +225,16 @@ class BaseInteraction extends Base {
     );
   }
 
+  /**
+   * Indicates whether this interaction is a {@link PrimaryEntryPointCommandInteraction}
+   * @returns {boolean}
+   */
+  isPrimaryEntryPointCommand() {
+    return (
+      this.type === InteractionType.ApplicationCommand && this.commandType === ApplicationCommandType.PrimaryEntryPoint
+    );
+  }
+
   /**
    * Indicates whether this interaction is a {@link MessageComponentInteraction}
    * @returns {boolean}
diff --git a/packages/discord.js/src/structures/CommandInteraction.js b/packages/discord.js/src/structures/CommandInteraction.js
index 0d435deeb446..2951a55f296d 100644
--- a/packages/discord.js/src/structures/CommandInteraction.js
+++ b/packages/discord.js/src/structures/CommandInteraction.js
@@ -152,6 +152,7 @@ class CommandInteraction extends BaseInteraction {
   editReply() {}
   deleteReply() {}
   followUp() {}
+  launchActivity() {}
   showModal() {}
   sendPremiumRequired() {}
   awaitModalSubmit() {}
diff --git a/packages/discord.js/src/structures/MessageComponentInteraction.js b/packages/discord.js/src/structures/MessageComponentInteraction.js
index f27050c15431..852cf8a98301 100644
--- a/packages/discord.js/src/structures/MessageComponentInteraction.js
+++ b/packages/discord.js/src/structures/MessageComponentInteraction.js
@@ -97,6 +97,7 @@ class MessageComponentInteraction extends BaseInteraction {
   followUp() {}
   deferUpdate() {}
   update() {}
+  launchActivity() {}
   showModal() {}
   sendPremiumRequired() {}
   awaitModalSubmit() {}
diff --git a/packages/discord.js/src/structures/ModalSubmitInteraction.js b/packages/discord.js/src/structures/ModalSubmitInteraction.js
index ba94190436da..0b23b9ab817f 100644
--- a/packages/discord.js/src/structures/ModalSubmitInteraction.js
+++ b/packages/discord.js/src/structures/ModalSubmitInteraction.js
@@ -119,6 +119,7 @@ class ModalSubmitInteraction extends BaseInteraction {
   deferUpdate() {}
   update() {}
   sendPremiumRequired() {}
+  launchActivity() {}
 }
 
 InteractionResponses.applyToClass(ModalSubmitInteraction, 'showModal');
diff --git a/packages/discord.js/src/structures/PrimaryEntryPointCommandInteraction.js b/packages/discord.js/src/structures/PrimaryEntryPointCommandInteraction.js
new file mode 100644
index 000000000000..a95fa0818c90
--- /dev/null
+++ b/packages/discord.js/src/structures/PrimaryEntryPointCommandInteraction.js
@@ -0,0 +1,11 @@
+'use strict';
+
+const CommandInteraction = require('./CommandInteraction.js');
+
+/**
+ * Represents a primary entry point command interaction.
+ * @extends {CommandInteraction}
+ */
+class PrimaryEntryPointCommandInteraction extends CommandInteraction {}
+
+module.exports = PrimaryEntryPointCommandInteraction;
diff --git a/packages/discord.js/src/structures/interfaces/InteractionResponses.js b/packages/discord.js/src/structures/interfaces/InteractionResponses.js
index 8ef61ebe7d89..30c41073876d 100644
--- a/packages/discord.js/src/structures/interfaces/InteractionResponses.js
+++ b/packages/discord.js/src/structures/interfaces/InteractionResponses.js
@@ -69,6 +69,12 @@ class InteractionResponses {
    * <warn>This option is deprecated. Use `withResponse` or fetch the response instead.</warn>
    */
 
+  /**
+   * Options for launching activity in response to a {@link BaseInteraction}
+   * @typedef {Object} LaunchActivityOptions
+   * @property {boolean} [withResponse] Whether to return an {@link InteractionCallbackResponse} as the response
+   */
+
   /**
    * Options for showing a modal in response to a {@link BaseInteraction}
    * @typedef {Object} ShowModalOptions
@@ -370,6 +376,25 @@ class InteractionResponses {
         : new InteractionResponse(this, this.message.interactionMetadata?.id);
   }
 
+  /**
+   * Launches this application's activity, if enabled
+   * @param {LaunchActivityOptions} [options={}] Options for launching the activity
+   * @returns {Promise<InteractionCallbackResponse|undefined>}
+   */
+  async launchActivity({ withResponse } = {}) {
+    if (this.deferred || this.replied) throw new DiscordjsError(ErrorCodes.InteractionAlreadyReplied);
+    const response = await this.client.rest.post(Routes.interactionCallback(this.id, this.token), {
+      query: makeURLSearchParams({ with_response: withResponse ?? false }),
+      body: {
+        type: InteractionResponseType.LaunchActivity,
+      },
+      auth: false,
+    });
+    this.replied = true;
+
+    return withResponse ? new InteractionCallbackResponse(this.client, response) : undefined;
+  }
+
   /**
    * Shows a modal component
    * @param {ModalBuilder|ModalComponentData|APIModalInteractionResponseCallbackData} modal The modal to show
@@ -450,6 +475,7 @@ class InteractionResponses {
       'followUp',
       'deferUpdate',
       'update',
+      'launchActivity',
       'showModal',
       'sendPremiumRequired',
       'awaitModalSubmit',
diff --git a/packages/discord.js/src/util/APITypes.js b/packages/discord.js/src/util/APITypes.js
index 2fc71ad4c36e..b20dc26f99a1 100644
--- a/packages/discord.js/src/util/APITypes.js
+++ b/packages/discord.js/src/util/APITypes.js
@@ -370,6 +370,11 @@
  * @see {@link https://discord-api-types.dev/api/discord-api-types-v10/enum/EntitlementType}
  */
 
+/**
+ * @external EntryPointCommandHandlerType
+ * @see {@link https://discord-api-types.dev/api/discord-api-types-v10/enum/EntryPointCommandHandlerType}
+ */
+
 /**
  * @external ForumLayoutType
  * @see {@link https://discord-api-types.dev/api/discord-api-types-v10/enum/ForumLayoutType}
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index 659b73ad20f7..9dbeab3f6f22 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -213,6 +213,7 @@ import {
   SeparatorSpacingSize,
   APIFileComponent,
   APIMessageTopLevelComponent,
+  EntryPointCommandHandlerType,
 } from 'discord-api-types/v10';
 import { ChildProcess } from 'node:child_process';
 import { EventEmitter } from 'node:events';
@@ -480,6 +481,7 @@ export class ApplicationCommand<PermissionsFetchType = {}> extends Base {
   public get manager(): ApplicationCommandManager;
   public id: Snowflake;
   public integrationTypes: ApplicationIntegrationType[] | null;
+  public handler: EntryPointCommandHandlerType | null;
   public name: string;
   public nameLocalizations: LocalizationMap | null;
   public nameLocalized: string | null;
@@ -583,23 +585,6 @@ export type BooleanCache<Cached extends CacheType> = Cached extends 'cached' ? t
 export abstract class CommandInteraction<Cached extends CacheType = CacheType> extends BaseInteraction<Cached> {
   public type: InteractionType.ApplicationCommand;
   public get command(): ApplicationCommand | ApplicationCommand<{ guild: GuildResolvable }> | null;
-  public options: Omit<
-    CommandInteractionOptionResolver<Cached>,
-    | 'getMessage'
-    | 'getFocused'
-    | 'getMentionable'
-    | 'getRole'
-    | 'getUser'
-    | 'getMember'
-    | 'getAttachment'
-    | 'getNumber'
-    | 'getInteger'
-    | 'getString'
-    | 'getChannel'
-    | 'getBoolean'
-    | 'getSubcommandGroup'
-    | 'getSubcommand'
-  >;
   public channelId: Snowflake;
   public commandId: Snowflake;
   public commandName: string;
@@ -632,6 +617,9 @@ export abstract class CommandInteraction<Cached extends CacheType = CacheType> e
   public reply(
     options: string | MessagePayload | InteractionReplyOptions,
   ): Promise<InteractionResponse<BooleanCache<Cached>>>;
+  public launchActivity(options: LaunchActivityOptions & { withResponse: true }): Promise<InteractionCallbackResponse>;
+  public launchActivity(options?: LaunchActivityOptions & { withResponse?: false }): Promise<undefined>;
+  public launchActivity(options?: LaunchActivityOptions): Promise<InteractionCallbackResponse | undefined>;
   public showModal(
     modal:
       | JSONEncodable<APIModalInteractionResponseCallbackData>
@@ -1439,6 +1427,23 @@ export class CommandInteractionOptionResolver<Cached extends CacheType = CacheTy
 }
 
 export class ContextMenuCommandInteraction<Cached extends CacheType = CacheType> extends CommandInteraction<Cached> {
+  public options: Omit<
+    CommandInteractionOptionResolver<Cached>,
+    | 'getMessage'
+    | 'getFocused'
+    | 'getMentionable'
+    | 'getRole'
+    | 'getUser'
+    | 'getMember'
+    | 'getAttachment'
+    | 'getNumber'
+    | 'getInteger'
+    | 'getString'
+    | 'getChannel'
+    | 'getBoolean'
+    | 'getSubcommandGroup'
+    | 'getSubcommand'
+  >;
   public commandType: ApplicationCommandType.Message | ApplicationCommandType.User;
   public targetId: Snowflake;
   public inGuild(): this is ContextMenuCommandInteraction<'raw' | 'cached'>;
@@ -1447,6 +1452,15 @@ export class ContextMenuCommandInteraction<Cached extends CacheType = CacheType>
   private resolveContextMenuOptions(data: APIApplicationCommandInteractionData): CommandInteractionOption<Cached>[];
 }
 
+export class PrimaryEntryPointCommandInteraction<
+  Cached extends CacheType = CacheType,
+> extends CommandInteraction<Cached> {
+  public commandType: ApplicationCommandType.PrimaryEntryPoint;
+  public inGuild(): this is PrimaryEntryPointCommandInteraction<'raw' | 'cached'>;
+  public inCachedGuild(): this is PrimaryEntryPointCommandInteraction<'cached'>;
+  public inRawGuild(): this is PrimaryEntryPointCommandInteraction<'raw'>;
+}
+
 // tslint:disable-next-line no-empty-interface
 export interface DMChannel
   extends Omit<
@@ -2062,6 +2076,7 @@ export type Interaction<Cached extends CacheType = CacheType> =
   | ChatInputCommandInteraction<Cached>
   | MessageContextMenuCommandInteraction<Cached>
   | UserContextMenuCommandInteraction<Cached>
+  | PrimaryEntryPointCommandInteraction<Cached>
   | AnySelectMenuInteraction<Cached>
   | ButtonInteraction<Cached>
   | AutocompleteInteraction<Cached>
@@ -2111,6 +2126,7 @@ export class BaseInteraction<Cached extends CacheType = CacheType> extends Base
   public isChatInputCommand(): this is ChatInputCommandInteraction<Cached>;
   public isCommand(): this is CommandInteraction<Cached>;
   public isContextMenuCommand(): this is ContextMenuCommandInteraction<Cached>;
+  public isPrimaryEntryPointCommand(): this is PrimaryEntryPointCommandInteraction<Cached>;
   public isMessageComponent(): this is MessageComponentInteraction<Cached>;
   public isMessageContextMenuCommand(): this is MessageContextMenuCommandInteraction<Cached>;
   public isModalSubmit(): this is ModalSubmitInteraction<Cached>;
@@ -2538,6 +2554,9 @@ export class MessageComponentInteraction<Cached extends CacheType = CacheType> e
   public update(
     options: string | MessagePayload | InteractionUpdateOptions,
   ): Promise<InteractionResponse<BooleanCache<Cached>>>;
+  public launchActivity(options: LaunchActivityOptions & { withResponse: true }): Promise<InteractionCallbackResponse>;
+  public launchActivity(options?: LaunchActivityOptions & { withResponse?: false }): Promise<undefined>;
+  public launchActivity(options?: LaunchActivityOptions): Promise<InteractionCallbackResponse | undefined>;
   public showModal(
     modal:
       | JSONEncodable<APIModalInteractionResponseCallbackData>
@@ -2784,6 +2803,9 @@ export class ModalSubmitInteraction<Cached extends CacheType = CacheType> extend
   public deferUpdate(options?: InteractionDeferUpdateOptions): Promise<InteractionResponse<BooleanCache<Cached>>>;
   /** @deprecated Sending a premium-style button is the new Discord behaviour. */
   public sendPremiumRequired(): Promise<void>;
+  public launchActivity(options: LaunchActivityOptions & { withResponse: true }): Promise<InteractionCallbackResponse>;
+  public launchActivity(options?: LaunchActivityOptions & { withResponse?: false }): Promise<undefined>;
+  public launchActivity(options?: LaunchActivityOptions): Promise<InteractionCallbackResponse | undefined>;
   public inGuild(): this is ModalSubmitInteraction<'raw' | 'cached'>;
   public inCachedGuild(): this is ModalSubmitInteraction<'cached'>;
   public inRawGuild(): this is ModalSubmitInteraction<'raw'>;
@@ -5271,10 +5293,18 @@ export interface ChatInputApplicationCommandData extends BaseApplicationCommandD
   options?: readonly ApplicationCommandOptionData[];
 }
 
+export interface PrimaryEntryPointCommandData extends BaseApplicationCommandData {
+  description?: string;
+  descriptionLocalizations?: LocalizationMap;
+  type: ApplicationCommandType.PrimaryEntryPoint;
+  handler?: EntryPointCommandHandlerType;
+}
+
 export type ApplicationCommandData =
   | UserApplicationCommandData
   | MessageApplicationCommandData
-  | ChatInputApplicationCommandData;
+  | ChatInputApplicationCommandData
+  | PrimaryEntryPointCommandData;
 
 export interface ApplicationCommandChannelOptionData extends BaseApplicationCommandOptionsData {
   type: CommandOptionChannelResolvableType;
@@ -7376,6 +7406,10 @@ export interface ShowModalOptions {
   withResponse?: boolean;
 }
 
+export interface LaunchActivityOptions {
+  withResponse?: boolean;
+}
+
 export { Snowflake };
 
 export type StageInstanceResolvable = StageInstance | Snowflake;
diff --git a/packages/discord.js/typings/index.test-d.ts b/packages/discord.js/typings/index.test-d.ts
index c3f97a035b14..8e9520503578 100644
--- a/packages/discord.js/typings/index.test-d.ts
+++ b/packages/discord.js/typings/index.test-d.ts
@@ -218,6 +218,7 @@ import {
   PollData,
   UserManager,
   InteractionCallbackResponse,
+  PrimaryEntryPointCommandInteraction,
   GuildScheduledEventRecurrenceRuleOptions,
   ThreadOnlyChannel,
   SectionComponentData,
@@ -229,6 +230,7 @@ import {
   SeparatorComponentData,
   FileComponentData,
   ContainerComponentData,
+  InteractionResponse,
 } from '.';
 import {
   expectAssignable,
@@ -1889,6 +1891,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<InteractionCallbackResponse>>(interaction.update({ content: 'a', withResponse: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message<true>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     } else if (interaction.inRawGuild()) {
       expectAssignable<MessageComponentInteraction>(interaction);
       expectType<APIButtonComponent | APISelectMenuComponent>(interaction.component);
@@ -1905,6 +1912,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<InteractionCallbackResponse>>(interaction.update({ content: 'a', withResponse: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message<false>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     } else if (interaction.inGuild()) {
       expectAssignable<MessageComponentInteraction>(interaction);
       expectType<MessageActionRowComponent | APIButtonComponent | APISelectMenuComponent>(interaction.component);
@@ -1921,6 +1933,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<InteractionCallbackResponse>>(interaction.update({ content: 'a', withResponse: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     }
   }
 
@@ -1960,6 +1977,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message<true>>>(interaction.editReply({ content: 'a' }));
       expectType<Promise<Message<true>>>(interaction.fetchReply());
       expectType<Promise<Message<true>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     } else if (interaction.inRawGuild()) {
       expectAssignable<ContextMenuCommandInteraction>(interaction);
       expectType<null>(interaction.guild);
@@ -1970,6 +1992,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message<false>>>(interaction.editReply({ content: 'a' }));
       expectType<Promise<Message<false>>>(interaction.fetchReply());
       expectType<Promise<Message<false>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     } else if (interaction.inGuild()) {
       expectAssignable<ContextMenuCommandInteraction>(interaction);
       expectType<Guild | null>(interaction.guild);
@@ -1980,6 +2007,11 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message>>(interaction.editReply({ content: 'a' }));
       expectType<Promise<Message>>(interaction.fetchReply());
       expectType<Promise<Message>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+      expectType<Promise<InteractionCallbackResponse | undefined>>(
+        interaction.launchActivity({ withResponse: booleanValue }),
+      );
     }
   }
 
@@ -2164,6 +2196,57 @@ client.on('interactionCreate', async interaction => {
     interaction.options.getMessage('name');
   }
 
+  if (
+    interaction.type === InteractionType.ApplicationCommand &&
+    interaction.commandType === ApplicationCommandType.PrimaryEntryPoint
+  ) {
+    expectType<PrimaryEntryPointCommandInteraction>(interaction);
+
+    // @ts-expect-error No options on primary entry point commands
+    interaction.options;
+    if (interaction.inCachedGuild()) {
+      expectAssignable<PrimaryEntryPointCommandInteraction>(interaction);
+      expectAssignable<Guild>(interaction.guild);
+      expectAssignable<CommandInteraction<'cached'>>(interaction);
+      expectType<Promise<InteractionCallbackResponse>>(interaction.reply({ content: 'a', withResponse: true }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.deferReply({ withResponse: true }));
+      expectType<Promise<InteractionResponse<true>>>(interaction.deferReply());
+      expectType<Promise<InteractionResponse<true>>>(interaction.reply({ content: 'a', withResponse: false }));
+      expectType<Promise<InteractionResponse<true>>>(interaction.deferReply({ withResponse: false }));
+      expectType<Promise<Message<true>>>(interaction.editReply({ content: 'a' }));
+      expectType<Promise<Message<true>>>(interaction.fetchReply());
+      expectType<Promise<Message<true>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+    } else if (interaction.inRawGuild()) {
+      expectAssignable<PrimaryEntryPointCommandInteraction>(interaction);
+      expectType<null>(interaction.guild);
+      expectType<Promise<InteractionCallbackResponse>>(interaction.reply({ content: 'a', withResponse: true }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.deferReply({ withResponse: true }));
+      expectType<Promise<InteractionResponse<false>>>(interaction.deferReply());
+      expectType<Promise<InteractionResponse<false>>>(interaction.reply({ content: 'a', withResponse: false }));
+      expectType<Promise<InteractionResponse<false>>>(interaction.deferReply({ withResponse: false }));
+      expectType<Promise<Message<false>>>(interaction.editReply({ content: 'a' }));
+      expectType<Promise<Message<false>>>(interaction.fetchReply());
+      expectType<Promise<Message<false>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+    } else if (interaction.inGuild()) {
+      expectAssignable<PrimaryEntryPointCommandInteraction>(interaction);
+      expectType<Guild | null>(interaction.guild);
+      expectType<Promise<InteractionCallbackResponse>>(interaction.reply({ content: 'a', withResponse: true }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.deferReply({ withResponse: true }));
+      expectType<Promise<InteractionResponse>>(interaction.deferReply());
+      expectType<Promise<InteractionResponse>>(interaction.reply({ content: 'a', withResponse: false }));
+      expectType<Promise<InteractionResponse>>(interaction.deferReply({ withResponse: false }));
+      expectType<Promise<Message>>(interaction.editReply({ content: 'a' }));
+      expectType<Promise<Message>>(interaction.fetchReply());
+      expectType<Promise<Message>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
+      expectType<Promise<undefined>>(interaction.launchActivity({ withResponse: false }));
+    }
+  }
+
   if (interaction.isRepliable()) {
     expectAssignable<RepliableInteraction>(interaction);
     interaction.reply('test');
@@ -2192,6 +2275,7 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message<true>>>(interaction.deferUpdate({ fetchReply: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message<true>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
     } else if (interaction.inRawGuild()) {
       expectAssignable<ModalSubmitInteraction>(interaction);
       expectType<null>(interaction.guild);
@@ -2204,6 +2288,7 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message<false>>>(interaction.deferUpdate({ fetchReply: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message<false>>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
     } else if (interaction.inGuild()) {
       expectAssignable<ModalSubmitInteraction>(interaction);
       expectType<Guild | null>(interaction.guild);
@@ -2216,6 +2301,7 @@ client.on('interactionCreate', async interaction => {
       expectType<Promise<Message>>(interaction.deferUpdate({ fetchReply: true }));
       expectType<Promise<InteractionCallbackResponse>>(interaction.deferUpdate({ withResponse: true }));
       expectType<Promise<Message>>(interaction.followUp({ content: 'a' }));
+      expectType<Promise<InteractionCallbackResponse>>(interaction.launchActivity({ withResponse: true }));
     }
   }