diff --git a/backend/src/events/dto.ts b/backend/src/events/dto.ts
new file mode 100644
index 00000000..875f287e
--- /dev/null
+++ b/backend/src/events/dto.ts
@@ -0,0 +1,4 @@
+export class CreateEventDto {
+  name: string;
+  capacity: number;
+}
diff --git a/backend/src/events/events.controller.ts b/backend/src/events/events.controller.ts
new file mode 100644
index 00000000..c0ce619f
--- /dev/null
+++ b/backend/src/events/events.controller.ts
@@ -0,0 +1,17 @@
+import { Controller, Get, Post, Body, Param } from '@nestjs/common';
+import { EventsService } from './events.service';
+
+@Controller('events')
+export class EventsController {
+  constructor(private readonly eventsService: EventsService) {}
+
+  @Get()
+  findAll() {
+    return this.eventsService.findAll();
+  }
+
+  @Post(':id/rsvp')
+  rsvp(@Param('id') id: string, @Body('userId') userId: string) {
+    return this.eventsService.rsvp(id, userId);
+  }
+}
diff --git a/backend/src/events/events.module.ts b/backend/src/events/events.module.ts
new file mode 100644
index 00000000..bc2a1fce
--- /dev/null
+++ b/backend/src/events/events.module.ts
@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { EventsController } from './events.controller';
+import { EventsService } from './events.service';
+
+@Module({
+  controllers: [EventsController],
+  providers: [EventsService],
+  exports: [EventsService],
+})
+export class EventsModule {}
diff --git a/backend/src/events/events.service.spec.ts b/backend/src/events/events.service.spec.ts
new file mode 100644
index 00000000..ac77c8a0
--- /dev/null
+++ b/backend/src/events/events.service.spec.ts
@@ -0,0 +1,17 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { EventsService } from './events.service';
+
+describe('EventsService', () => {
+  let service: EventsService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [EventsService],
+    }).compile();
+    service = module.get<EventsService>(EventsService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});
diff --git a/backend/src/events/events.service.ts b/backend/src/events/events.service.ts
new file mode 100644
index 00000000..bff0c128
--- /dev/null
+++ b/backend/src/events/events.service.ts
@@ -0,0 +1,21 @@
+import { Injectable, BadRequestException } from '@nestjs/common';
+
+@Injectable()
+export class EventsService {
+  private events = [
+    { id: '1', name: 'Networking Night', capacity: 50, rsvps: [] },
+  ];
+
+  findAll() {
+    return this.events;
+  }
+
+  rsvp(eventId: string, userId: string) {
+    const event = this.events.find((e) => e.id === eventId);
+    if (!event) throw new BadRequestException('Event not found');
+    if (event.rsvps.length >= event.capacity)
+      throw new BadRequestException('Event is at capacity');
+    event.rsvps.push(userId as never);
+    return { status: 'RSVP confirmed' };
+  }
+}