> For the complete documentation index, see [llms.txt](https://guides.regen.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.regen.network/technical-documentation/data-access-and-apis/generating-new-metadata-iris.md).

# Generating New Metadata IRIs

Applications can create new metadata entries—such as project updates, claims, evidence references, or credit-class documents—using the IRI Generator API.

#### **Generate an IRI (without storing it)**

```
GET /data/v2/iri-gen
```

#### **Generate + store an IRI and its metadata**

```
POST https://api.regen.network/data/v2/iri-gen
```

Request body is the metadata document (JSON-LD).\
The response includes:

* `iri`: content-addressed IRI
* `metadata`: the stored document (if using POST)

This is the same endpoint used internally for:

* Project posts / updates
* Evidence sets
* Claims
* Methodology or credit-class metadata creation