diff --git a/src/index.ts b/src/index.ts
index bdb7b9d..592bec2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -26,6 +26,7 @@ export type { IAppCache, IAppCacheKeys } from './helpers/cache';
  * Export classes and utils
  */
 export { FumeServer } from './server';
+export { FumeConfigSchema } from './serverConfigSchema';
 export { FhirClient } from './helpers/fhirServer';
 export const fumeUtils = {
   duplicate,
diff --git a/src/serverConfig.ts b/src/serverConfig.ts
index 45a170c..fbc553f 100644
--- a/src/serverConfig.ts
+++ b/src/serverConfig.ts
@@ -3,25 +3,10 @@
  *   Project name: FUME
  */
 
-import z from 'zod';
 import * as dotenv from 'dotenv';
 import { IConfig } from './types';
+import { FumeConfigSchema } from './serverConfigSchema';
 
 dotenv.config();
-
-export const configSchema = z.object({
-  SERVER_PORT: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(42420)),
-  SERVER_STATELESS: z.preprocess((a) => a === 'true', z.boolean().default(false)),
-  FHIR_SERVER_BASE: z.string().min(1).url().default('http://hapi-fhir.outburn.co.il/fhir'),
-  FHIR_SERVER_AUTH_TYPE: z.string().default('NONE'),
-  FHIR_SERVER_UN: z.string().default(''),
-  FHIR_SERVER_PW: z.string().default(''),
-  FHIR_SERVER_TIMEOUT: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(30000)),
-  FHIR_VERSION: z.string().min(1).default('4.0.1'),
-  SEARCH_BUNDLE_PAGE_SIZE: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(20)),
-  FHIR_PACKAGES: z.string().default(''),
-  EXCLUDE_FHIR_PACKAGES: z.string().default('')
-});
-
-export const config: IConfig = configSchema.parse(process.env);
+export const config: IConfig = FumeConfigSchema.parse(process.env);
 export default config;
diff --git a/src/serverConfigSchema.test.ts b/src/serverConfigSchema.test.ts
new file mode 100644
index 0000000..a52d2a2
--- /dev/null
+++ b/src/serverConfigSchema.test.ts
@@ -0,0 +1,26 @@
+/**
+ * © Copyright Outburn Ltd. 2022-2023 All Rights Reserved
+ *   Project name: FUME
+ */
+
+import { FumeConfigSchema } from './serverConfigSchema';
+import { test } from '@jest/globals';
+
+describe('FumeConfigSchema', () => {
+  test('Check schema defaults', async () => {
+    const config = FumeConfigSchema.parse({});
+    expect(config).toStrictEqual({
+      EXCLUDE_FHIR_PACKAGES: '',
+      FHIR_PACKAGES: '',
+      FHIR_SERVER_AUTH_TYPE: 'NONE',
+      FHIR_SERVER_BASE: 'http://hapi-fhir.outburn.co.il/fhir',
+      FHIR_SERVER_PW: '',
+      FHIR_SERVER_TIMEOUT: 30000,
+      FHIR_SERVER_UN: '',
+      FHIR_VERSION: '4.0.1',
+      SEARCH_BUNDLE_PAGE_SIZE: 20,
+      SERVER_PORT: 42420,
+      SERVER_STATELESS: false
+    });
+  });
+});
diff --git a/src/serverConfigSchema.ts b/src/serverConfigSchema.ts
new file mode 100644
index 0000000..fcf78db
--- /dev/null
+++ b/src/serverConfigSchema.ts
@@ -0,0 +1,15 @@
+import { z } from 'zod';
+
+export const FumeConfigSchema = z.object({
+  SERVER_PORT: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(42420)),
+  SERVER_STATELESS: z.preprocess((a) => a === 'true', z.boolean().default(false)),
+  FHIR_SERVER_BASE: z.string().min(1).url().default('http://hapi-fhir.outburn.co.il/fhir'),
+  FHIR_SERVER_AUTH_TYPE: z.string().default('NONE'),
+  FHIR_SERVER_UN: z.string().default(''),
+  FHIR_SERVER_PW: z.string().default(''),
+  FHIR_SERVER_TIMEOUT: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(30000)),
+  FHIR_VERSION: z.string().min(1).default('4.0.1'),
+  SEARCH_BUNDLE_PAGE_SIZE: z.preprocess((a) => typeof a === 'string' ? parseInt(a) : a, z.number().int('Must be an integer').positive('Must be positive').default(20)),
+  FHIR_PACKAGES: z.string().default(''),
+  EXCLUDE_FHIR_PACKAGES: z.string().default('')
+});