diff --git a/packages/concerto-core/api.txt b/packages/concerto-core/api.txt
index 3c29ea022f..c6ce9e8ea6 100644
--- a/packages/concerto-core/api.txt
+++ b/packages/concerto-core/api.txt
@@ -1,3 +1,6 @@
+class AstModelManager extends BaseModelManager {
+   + void constructor(object?) 
+}
 class BaseModelManager {
    + void constructor(object?,processFile?) 
    + boolean isModelManager() 
@@ -223,7 +226,7 @@ class ModelLoader {
    + object loadModelManagerFromModelFiles(object[],string[],object,boolean?,number?) 
 }
 class ModelManager extends BaseModelManager {
-   + void constructor(object?,processFile?) 
+   + void constructor(object?) 
    + Object addCTOModel(string,string,boolean?) throws IllegalModelException
 }
 class SecurityException extends BaseException {
diff --git a/packages/concerto-core/changelog.txt b/packages/concerto-core/changelog.txt
index 7c67d2d22a..e6e2e106f5 100644
--- a/packages/concerto-core/changelog.txt
+++ b/packages/concerto-core/changelog.txt
@@ -24,7 +24,7 @@
 # Note that the latest public API is documented using JSDocs and is available in api.txt.
 #
 
-Version 1.2.2 {a92fdef435d8588901b0c5f4b7b7cff1} 2021-11-24
+Version 1.2.2 {0bd210dc69b3813e8724353b1c355efc} 2021-11-24
 - Remove custom instanceof and add methods to check runtime type
 - Remove support for Node 12
 - Generate Typescript definitions from JSDoc
diff --git a/packages/concerto-core/lib/astmodelmanager.js b/packages/concerto-core/lib/astmodelmanager.js
new file mode 100644
index 0000000000..983ef6ffce
--- /dev/null
+++ b/packages/concerto-core/lib/astmodelmanager.js
@@ -0,0 +1,52 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const BaseModelManager = require('./basemodelmanager');
+
+// How to create a modelfile from a cto file
+const astProcessFile = (name, data) => {
+    return {
+        ast: data,
+        definitions: null,
+        fileName: name,
+    };
+};
+
+/**
+ * Manages the Concerto model files in AST format.
+ *
+ * The structure of {@link Resource}s (Assets, Transactions, Participants) is modelled
+ * in a set of Concerto files. The contents of these files are managed
+ * by the {@link ModelManager}. Each Concerto file has a single namespace and contains
+ * a set of asset, transaction and participant type definitions.
+ *
+ * Concerto applications load their Concerto files and then call the {@link ModelManager#addModelFile addModelFile}
+ * method to register the Concerto file(s) with the ModelManager.
+ *
+ * @memberof module:concerto-core
+ */
+class AstModelManager extends BaseModelManager {
+    /**
+     * Create the ModelManager.
+     * @constructor
+     * @param {object} [options] - Serializer options
+     */
+    constructor(options) {
+        super(options, astProcessFile);
+    }
+}
+
+module.exports = AstModelManager;
diff --git a/packages/concerto-core/lib/modelmanager.js b/packages/concerto-core/lib/modelmanager.js
index 0d8eb12da5..d495d15431 100644
--- a/packages/concerto-core/lib/modelmanager.js
+++ b/packages/concerto-core/lib/modelmanager.js
@@ -47,7 +47,6 @@ class ModelManager extends BaseModelManager {
      * Create the ModelManager.
      * @constructor
      * @param {object} [options] - Serializer options
-     * @param {*} [processFile] - how to obtain a concerto AST from an input to the model manager
      */
     constructor(options) {
         super(options, ctoProcessFile);
diff --git a/packages/concerto-core/test/astmodelmanager.js b/packages/concerto-core/test/astmodelmanager.js
new file mode 100644
index 0000000000..9f85d98f42
--- /dev/null
+++ b/packages/concerto-core/test/astmodelmanager.js
@@ -0,0 +1,44 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const AstModelManager = require('../lib/astmodelmanager');
+
+const chai = require('chai');
+chai.should();
+chai.use(require('chai-things'));
+chai.use(require('chai-as-promised'));
+const sinon = require('sinon');
+
+describe('AstModelManager', () => {
+    let sandbox;
+    let modelManager;
+
+    beforeEach(() => {
+        sandbox = sinon.createSandbox();
+        modelManager = new AstModelManager();
+    });
+
+    afterEach(() => {
+        sandbox.restore();
+    });
+
+    describe('#isModelManager', () => {
+        it('should return true', () => {
+            modelManager.isModelManager().should.be.true;
+        });
+    });
+
+});