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

# Outputs API — Overview

> Overview of Hexagraph's index of scholarly works including journal articles, preprints, books, and datasets.

The `/outputs` endpoints expose Hexagraph's index of scholarly works — including journal articles, preprints, book chapters, and datasets. Each output record carries citation counts, open-access status, source journal details, and a structured author list. Works are identified by the `HX_W` prefix system.

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## Filter and Sort Fields

The API supports filtering and sorting operations on these fields:

| Field            | Sort | Filter |
| ---------------- | :--: | :----: |
| `name`           |   ✓  |        |
| `year`           |   ✓  |    ✓   |
| `type`           |   ✓  |    ✓   |
| `is_oa`          |      |    ✓   |
| `cited_by_count` |   ✓  |    ✓   |

***

## Available REST Endpoints

* **[Get a single output](/api-reference/outputs/get-single-output)**: `GET /outputs/{id}` — Fetch detailed record for a specific scholarly work.
* **[List outputs](/api-reference/outputs/list-outputs)**: `GET /outputs` — Query, filter, paginate, and sort scholarly outputs.