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Utility Endpoints

Hexagraph exposes a small set of utility endpoints for asset delivery and entity resolution. These endpoints operate at the root level and are independent of resource type.

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Get favicon

Returns the Hexagraph favicon used by browsers, documentation sites, and client applications. 
curl "https://hexagraph-core.onrender.com/favicon.ico"

https://hexagraph-core.onrender.com/favicon.ico

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Response

Returns a binary ICO image file. Response headers include:
  • Content-Type — image/x-icon
  • Content-Length — file size in bytes
  • Cache-Control — caching policy
  • Last-Modified — last update timestamp

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Resolve entity

Resolve any OpenAlex entity directly by its identifier. The system automatically detects the prefix and routes the request to the correct internal resource. Supported prefixes:
  • OA:A → Authors
  • OA:W → Outputs
  • OA:S → Sources
  • OA:I → Institutions
  • OA:P → Publishers
  • OA:F → Funders

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Example request

curl "https://hexagraph-core.onrender.com/OA:A5103423779"

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Response (Author example)

{
  "id": "https://openalex.org/A5103423779",
  "orcid": null,
  "display_name": "Mikirou Yoshinuma",
  "raw_author_names": [
    "EMOTO, Masahiko",
    "Mikirou YOSHINUMA",
    "Mikirou Yoshinuma",
    "YOSHINUMA, Mikirou",
    "Yoshinuma, Mikirou"
  ],
  "full_name": "YOSHINUMA, Mikirou",
  "works_count": 1898731,
  "cited_by_count": 185,
  "summary_stats": {
    "2yr_mean_citedness": 0.000005793465076729178,
    "h_index": 8,
    "i10_index": 7
  },
  "ids": {
    "openalex": "https://openalex.org/A5103423779",
    "orcid": null
  },
  "affiliations": [
    {
      "institution": {
        "id": "https://openalex.org/I199525922",
        "ror": "https://ror.org/055n47h92",
        "display_name": "National Institutes of Natural Sciences",
        "country_code": "JP",
        "type": "facility",
        "lineage": [
          "https://openalex.org/I1319490839",
          "https://openalex.org/I199525922"
        ]
      },
      "years": [2025, 2024, 2022, 2021, 2019]
    }
  ],
  "last_known_institutions": [
    {
      "id": "https://openalex.org/I4210108322",
      "ror": "https://ror.org/01t3wyv61",
      "display_name": "National Institute for Fusion Science",
      "country_code": "JP",
      "type": "facility",
      "lineage": [
        "https://openalex.org/I1319490839",
        "https://openalex.org/I199525922",
        "https://openalex.org/I4210108322"
      ]
    }
  ],
  "topics": [
    {
      "id": "https://openalex.org/T10346",
      "display_name": "Magnetic confinement fusion research",
      "count": 33,
      "subfield": {
        "id": "https://openalex.org/subfields/3106",
        "display_name": "Nuclear and High Energy Physics"
      },
      "field": {
        "id": "https://openalex.org/fields/31",
        "display_name": "Physics and Astronomy"
      },
      "domain": {
        "id": "https://openalex.org/domains/3",
        "display_name": "Physical Sciences"
      }
    }
  ],
  "topic_share": [
    {
      "id": "https://openalex.org/T10346",
      "display_name": "Magnetic confinement fusion research",
      "value": 0.0001419,
      "subfield": {
        "id": "https://openalex.org/subfields/3106",
        "display_name": "Nuclear and High Energy Physics"
      },
      "field": {
        "id": "https://openalex.org/fields/31",
        "display_name": "Physics and Astronomy"
      },
      "domain": {
        "id": "https://openalex.org/domains/3",
        "display_name": "Physical Sciences"
      }
    }
  ],
  "x_concepts": [
    {
      "id": "121332964",
      "wikidata": "https://www.wikidata.org/wiki/Q413",
      "display_name": "Physics",
      "score": 0.8388863801956177
    }
  ],
  "counts_by_year": [
    {
      "year": 1998,
      "works_count": 1,
      "oa_works_count": 0,
      "cited_by_count": 0
    }
  ],
  "display_name_alternatives": [
    "EMOTO, Masahiko",
    "Mikirou YOSHINUMA",
    "YOSHINUMA, Mikirou"
  ],
  "block_key": "m yoshinuma",
  "works_api_url": "https://api.openalex.org/works?filter=author.id:A5103423779",
  "updated_date": "2026-06-13T12:17:50",
  "created_date": "2025-10-10T00:00:00"
}