> ## 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.

# Authors API — Overview

> Overview of Hexagraph's global registry of academic researchers, citation metrics, and affiliation histories.

The `/authors` endpoints expose Hexagraph's disambiguated index of academic researchers. Author profiles combine publication counts, citation totals, ORCID identifiers, and institutional affiliation histories. Authors are identified by the `HX_A` prefix system.

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## Filter and Sort Fields

The API supports filtering, sorting, and grouping operations on these fields:

| Field            | Sort | Filter |
| ---------------- | :--: | :----: |
| `id`             |   ✓  |    ✓   |
| `name`           |   ✓  |        |
| `outputs_count`  |   ✓  |    ✓   |
| `cited_by_count` |   ✓  |    ✓   |

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## Available REST Endpoints

* **[Get a single author](/api-reference/authors/get-single-author)**: `GET /authors/{id}` — Fetch detailed profile for a specific researcher.
* **[List authors](/api-reference/authors/list-authors)**: `GET /authors` — Query, filter, paginate, and sort author profiles.