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# Generate OpenRPC Reference

> Use Fern Docs to generate OpenRPC Reference documentation from an OpenRPC specification.

Fern generates OpenRPC Reference documentation from an [OpenRPC](https://open-rpc.org/) specification.

## Configuration

#### Set up your project structure

Add your OpenRPC specification file (e.g., `openrpc.yaml`) to your `/fern` directory and create a `generators.yml` that references it:

**`generators.yml`**

```yaml generators.yml
api:
  specs:
    - openrpc: ./openrpc.yml
```

#### Add the OpenRPC Reference to your navigation

Add `- api: API Reference` to your navigation in `docs.yml`:

**`docs.yml`**

```yml docs.yml
navigation:
  - api: API Reference
```

#### Customize the layout

For a full list of configuration options and layout customizations, see [Customize API Reference layout](/learn/docs/api-references/customize-api-reference-layout).

### Include more than one OpenRPC Reference

To include multiple OpenRPC definitions in your documentation, use the `api-name` property. The `api-name` corresponds to the folder name containing your OpenRPC definition.

**`docs.yml`**

```yaml title="docs.yml"
navigation:
  - api: Wallet API
    api-name: wallet-api
  - api: NFT API
    api-name: nft-api
```

### Configuration properties

**`api.specs[].openrpc`** — required

Path to your OpenRPC specification file. You can include multiple OpenRPC specs if your project exposes more than one JSON-RPC API.

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> Use Fern Docs to generate OpenRPC Reference documentation from an OpenRPC specification.