Firecrawl Alexandria

NIH 3D

NIH 3D (3d.nih.gov, NIAID), the NIH's open library of bioscience and medical 3D models: anatomy from medical imaging, proteins and molecules, cells, viruses, lab devices and prosthetics. Search published entries by text, category, licence, collection (Heart Library, Human Reference Atlas, 3D Pollen Library, ...), submitter and human data, sorted by relevance, id or publish date, with facet counts by category, licence and keyword; read one entry with its per-model licence, author display name, DOI, provenance (PDB, EMDB, UniProt, PubChem ids), file list with formats, sizes, polygon and vertex counts, watertight flags and public download links, thumbnail and view/download counts; list the curated collections. Keyless; file bytes are linked, never fetched.

Try in Agent

Find 3D printable heart anatomy models on NIH 3D with their licence and polygon count.

Try NIH 3D now.

Choose an example or ask your own question.

What do you want to do with NIH 3D?

NIH 3D

TRY ASKING

Codefollows the fields above

const result = await firecrawl.scrape({
  alexandria: {
    provider: "threed-nih-gov",
    capability: "models-3d/get_entry",
    options: {
      id: "3DPX-021281",
    },
  },
});

2Response example

This is a sample shape. Press Run to see live data from NIH 3D.

{
  "author": "athlete arrhythmia",
  "category": "Anatomy",
  "collections": [],
  "created": "2026-10-09T00:08:39.476Z",
  "description": "The ventricles of a male athlete's heart. This heart has undergone extreme remodeling, with an LVIDD at 72mm, maximal wall thickness 16mm, RVIDD 57mm. Despite the enlargement the heart is confirmed healthy and disease free.",
  "doi": null,
  "doi_url": null,
  "download_count": 119,
  "files": [
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/files/input/2204246",
      "file_type": "InputMesh",
      "format": "STL",
      "label": "Tissue model of the ventricles of a male athlete's heart. This model is at scale. The heart is unusually large, representing an extreme example of athletic remodeling.",
      "name": "aa_heart2.stl",
      "origin": "input",
      "polygon_count": 29446,
      "size_bytes": 1472734,
      "vertex_count": 14687,
      "watertight": true
    },
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217326",
      "file_type": "OutputMesh",
      "format": "3MF",
      "label": null,
      "name": "aa_heart2-repaired-nih3d.3mf",
      "origin": "generated",
      "polygon_count": 59858,
      "size_bytes": 761329,
      "vertex_count": 29915,
      "watertight": true
    },
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217327",
      "file_type": "OutputMesh",
      "format": "WRL",
      "label": null,
      "name": "aa_heart2-repaired-nih3d.wrl",
      "origin": "generated",
      "polygon_count": 59858,
      "size_bytes": 12368384,
      "vertex_count": 179522,
      "watertight": true
    },
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217328",
      "file_type": "OutputMesh",
      "format": "GLB",
      "label": null,
      "name": "aa_heart2-repaired-nih3d.glb",
      "origin": "generated",
      "polygon_count": 59858,
      "size_bytes": 5027968,
      "vertex_count": 179522,
      "watertight": true
    },
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217330",
      "file_type": "OutputMesh",
      "format": "BLEND",
      "label": null,
      "name": "aa_heart2-repaired-nih3d.blend",
      "origin": "generated",
      "polygon_count": 59858,
      "size_bytes": 3239441,
      "vertex_count": 179522,
      "watertight": null
    },
    {
      "download_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217332",
      "file_type": "OutputMesh",
      "format": "STL",
      "label": null,
      "name": "aa_heart2-repaired-nih3d.stl",
      "origin": "generated",
      "polygon_count": 59858,
      "size_bytes": 2992984,
      "vertex_count": 29915,
      "watertight": true
    }
  ],
  "formats": [
    "3MF",
    "BLEND",
    "GLB",
    "STL",
    "WRL"
  ],
  "id": "3DPX-021281",
  "keywords": [
    "heart",
    "athlete",
    "athlete's heart",
    "Cardiomegaly",
    "enlarged heart"
  ],
  "license": {
    "attribution_required": true,
    "commercial_use": true,
    "name": "CC-BY",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "max_polygon_count": 59858,
  "mesh_repaired": true,
  "observed_at_ms": 1793750400000,
  "print_ready": false,
  "provenance": {
    "accession_code": null,
    "emdb_ids": [],
    "experimental_method": null,
    "external_database": null,
    "pdb_ids": [],
    "pubchem_ids": [],
    "pubmed_id": null,
    "remix_of": [],
    "source": null,
    "uniprot_ids": []
  },
  "published": "2026-10-09T00:41:57.457Z",
  "submission_status": "Published",
  "tags": [
    "Teaching or Training purposes",
    "Cardiovascular (EACTS-STS 2010)",
    "Magnetic Resonance Imaging (MRI)"
  ],
  "taxonomy": "Homo-sapiens",
  "thumbnail_url": "https://3d.nih.gov/api/submissions/44561/runs/8edd373b-ec4f-49aa-b723-cf7a520a3408/output-files/2217329",
  "title": "Athlete's heart",
  "url": "https://3d.nih.gov/entries/3DPX-021281",
  "version": "2",
  "view_count": 1179
}

Browse the library

Get started

Give your agent NIH 3D.

One API key for the live web and every provider in Alexandria.

Use NIH 3D Explore Alexandria

Are you an AI agent? See setup options

NIH 3D

Try NIH 3D now.

Related providers