diff --git a/jsonrpc/src/common/api.ts b/jsonrpc/src/common/api.ts
index c07929db1..9c82b3d28 100644
--- a/jsonrpc/src/common/api.ts
+++ b/jsonrpc/src/common/api.ts
@@ -19,7 +19,7 @@ import { SharedArraySenderStrategy, SharedArrayReceiverStrategy } from './shared
 import { MessageReader, AbstractMessageReader, ReadableStreamMessageReader, DataCallback, MessageReaderOptions, PartialMessageInfo } from './messageReader';
 import { MessageWriter, AbstractMessageWriter, WriteableStreamMessageWriter, MessageWriterOptions } from './messageWriter';
 import { AbstractMessageBuffer } from './messageBuffer';
-import { ContentTypeEncoderOptions, ContentTypeDecoderOptions } from './encoding';
+import { ContentTypeEncoderOptions, ContentEncoder, ContentTypeEncoder, ContentTypeDecoderOptions, ContentDecoder, ContentTypeDecoder } from './encoding';
 import {
 	Logger, ConnectionStrategy, ConnectionOptions, MessageConnection, NullLogger, createMessageConnection,
 	ProgressToken, ProgressType, HandlerResult, StarRequestHandler, GenericRequestHandler,
@@ -56,7 +56,7 @@ export {
 	// Export from abstract message buffer
 	AbstractMessageBuffer,
 	// Export from encodings
-	ContentTypeEncoderOptions, ContentTypeDecoderOptions,
+	ContentTypeEncoderOptions, ContentEncoder, ContentTypeEncoder, ContentTypeDecoderOptions,ContentDecoder, ContentTypeDecoder,
 	// Export from connection
 	Logger, ConnectionStrategy, ConnectionOptions, MessageConnection, NullLogger, createMessageConnection,
 	ProgressToken, ProgressType, HandlerResult, StarRequestHandler, GenericRequestHandler,