diff --git a/.changes/next-release/feature-Type-505e9b51.json b/.changes/next-release/feature-Type-505e9b51.json
new file mode 100644
index 0000000000..d10c2eef6c
--- /dev/null
+++ b/.changes/next-release/feature-Type-505e9b51.json
@@ -0,0 +1,5 @@
+{
+  "type": "feature",
+  "category": "Type",
+  "description": "export client config interface on root as ConfigurationOptions"
+}
\ No newline at end of file
diff --git a/lib/config-base.d.ts b/lib/config-base.d.ts
index 513cf775e3..d9b8d7d5b3 100644
--- a/lib/config-base.d.ts
+++ b/lib/config-base.d.ts
@@ -116,6 +116,9 @@ export interface RetryDelayOptions {
     customBackoff?: (retryCount: number, err?: Error) => number
 }
 
+/**
+ * Common configuration entries to construct a service client.
+ */
 export abstract class ConfigurationOptions {
 
     /**
diff --git a/lib/core.d.ts b/lib/core.d.ts
index 703e69e2c0..ebd738e84d 100644
--- a/lib/core.d.ts
+++ b/lib/core.d.ts
@@ -1,5 +1,5 @@
 export {Config} from './config';
-export {HTTPOptions} from './config-base';
+export {HTTPOptions, ConfigurationOptions} from './config-base';
 export {Credentials} from './credentials';
 export {CognitoIdentityCredentials} from './credentials/cognito_identity_credentials';
 export {CredentialProviderChain} from './credentials/credential_provider_chain';