> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aseeflow.org/llms.txt
> Use this file to discover all available pages before exploring further.

# CMMN Model API

The CMMN model API enables easy extraction of information from an existing case definition, editing of an existing case definition or creating a complete new one without manual XML parsing.

* [**Read a Model**](/user-guide/model-api/cmmn-model-api/read-a-model) — Parse and inspect a CMMN model.
* [**Create a Model**](/user-guide/model-api/cmmn-model-api/create-a-model) — Build a CMMN model from scratch.
* [**Delegation Code**](/user-guide/model-api/cmmn-model-api/delegation-code) — Access the model from delegation code.
* [**Repository Service**](/user-guide/model-api/cmmn-model-api/repository-service) — Retrieve models via the repository service.
* [**Extension Elements**](/user-guide/model-api/cmmn-model-api/extension-elements) — Work with extension elements.
* [**Limitations**](/user-guide/model-api/cmmn-model-api/limitations) — Known limitations of the CMMN model API.