diff --git a/packages/apollo-server-core/package.json b/packages/apollo-server-core/package.json
index 2804cf25e0e..b322c8a3f92 100644
--- a/packages/apollo-server-core/package.json
+++ b/packages/apollo-server-core/package.json
@@ -24,6 +24,7 @@
     "node": ">=6"
   },
   "dependencies": {
+    "@apollographql/apollo-tools": "^0.2.0",
     "@apollographql/apollo-upload-server": "^5.0.3",
     "@apollographql/graphql-playground-html": "^1.6.4",
     "@types/ws": "^6.0.0",
diff --git a/packages/apollo-server-core/src/ApolloServer.ts b/packages/apollo-server-core/src/ApolloServer.ts
index 33d933f7ada..011e2160188 100644
--- a/packages/apollo-server-core/src/ApolloServer.ts
+++ b/packages/apollo-server-core/src/ApolloServer.ts
@@ -52,6 +52,7 @@ import {
 } from './requestPipeline';
 
 import { Headers } from 'apollo-server-env';
+import { buildServiceDefinition } from '../../../../apollo-tooling/packages/apollo-tools/lib';
 
 const NoIntrospection = (context: ValidationContext) => ({
   Field(node: FieldDefinitionNode) {
@@ -117,6 +118,7 @@ export class ApolloServerBase {
       resolvers,
       schema,
       schemaDirectives,
+      modules,
       typeDefs,
       introspection,
       mocks,
@@ -215,10 +217,16 @@ export class ApolloServerBase {
 
     if (schema) {
       this.schema = schema;
+    } else if (modules) {
+      const { schema, errors } = buildServiceDefinition(modules);
+      if (errors && errors.length > 0) {
+        throw new Error(errors.map(error => error.message).join('\n\n'));
+      }
+      this.schema = schema!;
     } else {
       if (!typeDefs) {
         throw Error(
-          'Apollo Server requires either an existing schema or typeDefs',
+          'Apollo Server requires either an existing schema, modules or typeDefs',
         );
       }
 
diff --git a/packages/apollo-server-core/src/types.ts b/packages/apollo-server-core/src/types.ts
index 8807c6ccd9d..275b6067c21 100644
--- a/packages/apollo-server-core/src/types.ts
+++ b/packages/apollo-server-core/src/types.ts
@@ -17,6 +17,9 @@ import {
 import { CacheControlExtensionOptions } from 'apollo-cache-control';
 import { ApolloServerPlugin } from 'apollo-server-plugin-base';
 
+import { GraphQLSchemaModule } from '@apollographql/apollo-tools';
+export { GraphQLSchemaModule };
+
 export { KeyValueCache } from 'apollo-server-caching';
 
 export type Context<T = any> = T;
@@ -54,6 +57,7 @@ export interface Config
       | 'dataSources'
       | 'cache'
     > {
+  modules?: GraphQLSchemaModule[];
   typeDefs?: DocumentNode | Array<DocumentNode>;
   resolvers?: IResolvers;
   schema?: GraphQLSchema;
diff --git a/packages/apollo-server/src/exports.ts b/packages/apollo-server/src/exports.ts
index ded825c35c2..7a625e2cbe4 100644
--- a/packages/apollo-server/src/exports.ts
+++ b/packages/apollo-server/src/exports.ts
@@ -7,6 +7,7 @@ export {
   GraphQLOptions,
   GraphQLExtension,
   Config,
+  GraphQLSchemaModule,
   // Errors
   ApolloError,
   toApolloError,
diff --git a/packages/graphql-extensions/package.json b/packages/graphql-extensions/package.json
index d67f1682de5..c8c90d4551e 100644
--- a/packages/graphql-extensions/package.json
+++ b/packages/graphql-extensions/package.json
@@ -13,6 +13,9 @@
   "engines": {
     "node": ">=6.0"
   },
+  "dependencies": {
+    "@apollographql/apollo-tools": "^0.2.0"
+  },
   "devDependencies": {
     "apollo-server-core": "file:../apollo-server-core",
     "apollo-server-env": "file:../apollo-server-env"