diff --git a/apps/discord-bot/src/commands/evaluate.ts b/apps/discord-bot/src/commands/evaluate.ts
index 3fdb432..fe536df 100644
--- a/apps/discord-bot/src/commands/evaluate.ts
+++ b/apps/discord-bot/src/commands/evaluate.ts
@@ -1,9 +1,11 @@
 import {
   ApplicationCommandOptionType,
+  type AutocompleteInteraction,
   Command,
   type CommandInteraction,
   type CommandOptions,
 } from '@buape/carbon';
+import { fetchRuntimes, searchRuntimes } from '@evaluate/engine/runtimes';
 import { EditEvaluationButton } from '~/components/edit-evaluation-button';
 import { EvaluateModal, EvaluateModalEdit } from '~/components/evaluate-modal';
 import { handleEvaluating } from '~/handlers/evaluate';
@@ -20,6 +22,7 @@ export class EvaluateCommand extends Command {
       name: 'runtime',
       description: 'The runtime in which the code is written.',
       required: false,
+      autocomplete: true,
     },
     {
       type: ApplicationCommandOptionType.String,
@@ -44,6 +47,22 @@ export class EvaluateCommand extends Command {
   components = [EditEvaluationButton];
   modals = [EvaluateModal, EvaluateModalEdit];
 
+  async autocomplete(interaction: AutocompleteInteraction) {
+    const runtime = interaction.options.getString('runtime');
+
+    if (runtime) {
+      const runtimes = await searchRuntimes(runtime);
+      return interaction.respond(
+        runtimes.slice(0, 25).map((r) => ({ name: r.name, value: r.id })),
+      );
+    } else {
+      const runtimes = await fetchRuntimes();
+      return interaction.respond(
+        runtimes.slice(0, 25).map((r) => ({ name: r.name, value: r.id })),
+      );
+    }
+  }
+
   async run(use: CommandInteraction) {
     captureEvent(getInteractionContext(use.rawData), 'used_command', {
       command_name: this.name,
diff --git a/apps/discord-bot/src/index.ts b/apps/discord-bot/src/index.ts
index 4e0ac61..b50e7fc 100644
--- a/apps/discord-bot/src/index.ts
+++ b/apps/discord-bot/src/index.ts
@@ -33,6 +33,8 @@ export default async function handler(request: Request) {
       await client.componentHandler.handleInteraction(interaction);
     if (interaction.type === InteractionType.ModalSubmit)
       await client.modalHandler.handleInteraction(interaction);
+    if (interaction.type === InteractionType.ApplicationCommandAutocomplete)
+      await client.commandHandler.handleAutocompleteInteraction(interaction);
 
     await posthog?.shutdown();
     return new Response(':)', { status: 200 });