diff --git a/api-v3/src/asset-master/inventory-merge.controller.ts b/api-v3/src/asset-master/inventory-merge.controller.ts
new file mode 100644
index 0000000..184aecf
--- /dev/null
+++ b/api-v3/src/asset-master/inventory-merge.controller.ts
@@ -0,0 +1,53 @@
+import {
+  Body,
+  Controller,
+  Get,
+  Param,
+  ParseUUIDPipe,
+  Post,
+  Req,
+} from '@nestjs/common';
+import { CurrentAuth } from '../auth/decorators/current-auth.decorator';
+import { RequirePermissions } from '../authorization/decorators/require-permissions.decorator';
+import type { AuthPrincipal, RequestWithContext } from '../common/http/request-context';
+import { MergeInventoryAssetDto } from './dto/merge-inventory-asset.dto';
+import { InventoryMergeService } from './inventory-merge.service';
+
+@Controller('assets')
+export class InventoryMergeController {
+  constructor(private readonly merges: InventoryMergeService) {}
+
+  @Get(':id/merge-status')
+  @RequirePermissions('assets.read')
+  status(@Param('id', new ParseUUIDPipe({ version: '4' })) id: string) {
+    return this.merges.status(id);
+  }
+
+  @Post(':id/merge')
+  @RequirePermissions('assets.update')
+  merge(
+    @Param('id', new ParseUUIDPipe({ version: '4' })) id: string,
+    @Body() dto: MergeInventoryAssetDto,
+    @CurrentAuth() principal: AuthPrincipal,
+    @Req() request: RequestWithContext,
+  ) {
+    return this.merges.merge(id, dto, principal, request);
+  }
+}
+
+@Controller('inspection-visits/:visitId/field-inventory')
+export class FieldInventoryMergeController {
+  constructor(private readonly merges: InventoryMergeService) {}
+
+  @Post(':assetId/merge')
+  @RequirePermissions('assets.create', 'inspections.execute')
+  mergeFieldDiscovery(
+    @Param('visitId', new ParseUUIDPipe({ version: '4' })) visitId: string,
+    @Param('assetId', new ParseUUIDPipe({ version: '4' })) assetId: string,
+    @Body() dto: MergeInventoryAssetDto,
+    @CurrentAuth() principal: AuthPrincipal,
+    @Req() request: RequestWithContext,
+  ) {
+    return this.merges.mergeFromVisit(visitId, assetId, dto, principal, request);
+  }
+}