SEARCH COVERAGE · REVIEWED SEP 10, 2026

Where PrintWhat looks.

One request can span printable libraries, paid marketplaces, engineering CAD catalogs and scientific scans. This registry shows what is covered, what each source is good at, and where access must remain on the original site.

39

sources covered

6

live public APIs

18

web-index sources

12

direct-search only

Search what can be searched

Documented APIs and contracted web-index results can return structured candidates inside PrintWhat.

Open restricted sources

When a source does not permit aggregation, PrintWhat sends the query to its own search experience.

Verify before use

The original listing remains authoritative for files, license, dimensions, price and availability.

print library

Printable model libraries

8 sources
Printables

printables.com

Web-index discovery

Useful for

Large print-focused library, makes and print settings.

Check before use

No documented public search API; do not depend on private GraphQL endpoints.

MakerWorld

makerworld.com

Web-index discovery

Useful for

Fast-growing print-focused catalog with printer profiles and makes.

Check before use

No documented public search API; never call reverse-engineered app endpoints.

Thingiverse

thingiverse.com

Direct search; integration needs approval

Useful for

Very broad legacy catalog and long-tail functional parts.

Check before use

Official API terms require strong source separation and restrict competitive aggregation; activate only after written review.

API or terms reference
Creality Cloud

crealitycloud.com

Web-index discovery

Useful for

Large consumer-printing community and printer-ready resources.

Check before use

No documented public search API identified.

Pinshape

pinshape.com

Web-index discovery

Useful for

Free and paid print-oriented models with community context.

Check before use

No documented public search API found; retain source licensing and safety notices.

YouMagine

youmagine.com

Web-index discovery

Useful for

Open-hardware and functional printable designs.

Check before use

Legacy API availability is unreliable; use indexed discovery and source links.

Makeronline

makeronline.com

Web-index discovery

Useful for

Anycubic-backed printable model community.

Check before use

No documented public search API identified.

Zortrax Library

library.zortrax.com

Web-index discovery

Useful for

Smaller printer-oriented collection with practical designs.

Check before use

Limited catalog and no documented public search API.

model marketplace

3D model marketplaces

10 sources
MyMiniFactory

myminifactory.com

Structured search when configured

Useful for

Curated printable models, strong miniatures and paid creator ecosystem.

Check before use

Official API requires an authenticated client or API key.

API or terms reference
Cults3D

cults3d.com

Direct search; integration needs approval

Useful for

Large free and paid printable-model marketplace.

Check before use

GraphQL API uses issued Basic Auth credentials; files remain on Cults. Confirm commercial aggregation permission before activation.

API or terms reference
Sketchfab

sketchfab.com

Live structured search

Useful for

Broad 3D asset catalog, strong preview experience and explicit licenses.

Check before use

Not every model is designed for printing; show creator, source and license attribution.

API or terms reference
CGTrader

cgtrader.com

Web-index discovery

Useful for

Large commercial 3D asset marketplace with some print-ready models.

Check before use

Many assets are visualization-first; verify geometry, format and license for printing.

Poly Haven

polyhaven.com

Live structured search

Useful for

Small, high-quality CC0 asset library with documented multilingual hybrid search.

Check before use

Models target rendering rather than fabrication; live API use requires clear Poly Haven credit and a unique User-Agent.

API or terms reference
FAB365

fab365.net

Web-index discovery

Useful for

Paid printable designs, including articulated and assembly-focused models.

Check before use

No documented public API identified.

TurboSquid

turbosquid.com

Web-index discovery

Useful for

Large professional 3D asset catalog.

Check before use

Most assets are not validated for fabrication; licensing varies.

Gambody

gambody.com

Web-index discovery

Useful for

High-detail premium miniatures and collectibles.

Check before use

Narrow use cases and paid licenses; no documented public search API.

3DExport

3dexport.com

Web-index discovery

Useful for

Paid 3D models across printable and visualization categories.

Check before use

Mixed print readiness and per-item licensing.

Free3D

free3d.com

Web-index discovery

Useful for

Broad free and paid generic 3D assets.

Check before use

Low print-readiness signal; verify mesh and usage rights.

engineering cad

Engineering CAD catalogs

7 sources
GrabCAD Community Library

grabcad.com

Direct source search only

Useful for

Strong engineering CAD coverage and native parametric formats.

Check before use

Terms prohibit automated collection without permission; content is generally private/non-commercial use unless creator permits otherwise.

TraceParts

traceparts.com

Direct search; integration needs approval

Useful for

Large manufacturer CAD catalog with standardized product metadata.

Check before use

Programmatic integrations are commercial/partner products; use direct search until approved.

3Dfindit

3dfindit.com

Direct search; integration needs approval

Useful for

Manufacturer components, geometric search and multiple CAD formats.

Check before use

Commercial integration should use CADENAS partnership/API terms.

3D ContentCentral

3dcontentcentral.com

Web-index discovery

Useful for

Supplier-certified and user-contributed engineering components.

Check before use

Account and supplier-specific terms may apply to downloads.

McMaster-Carr CAD

mcmaster.com

Direct source search only

Useful for

Reliable dimensional CAD for standard industrial components.

Check before use

Use for reference and purchasing; respect site and product-data terms.

STEP Parts

step.parts

Web-index discovery

Useful for

Canonical purchasable component CAD, useful when the need is an off-the-shelf part.

Check before use

Component catalog rather than a general printable-model community.

Onshape Public Documents

cad.onshape.com

Direct source search only

Useful for

Editable public parametric CAD documents.

Check before use

Login and document permissions apply; use native search rather than crawling.

cultural scans

Scientific and cultural scans

5 sources
Smithsonian 3D

3d.si.edu

Live structured search

Useful for

Authoritative cultural and scientific scans with strong open-access metadata.

Check before use

Many models are reference scans rather than fabrication-ready parts.

API or terms reference
Europeana 3D

europeana.eu

Structured search when configured

Useful for

Thousands of 3D cultural-heritage records from European institutions with explicit rights metadata.

Check before use

A 3D record may be view-only, hosted by another platform or unsuitable for fabrication; production use needs a Europeana Project API key.

API or terms reference
NASA 3D Resources

science.nasa.gov

Live structured search

Useful for

Official mission models, with a specific printable filter and GitHub mirror.

Check before use

Specialized aerospace catalog; follow NASA media usage guidance.

API or terms reference
NIH 3D

3d.nih.gov

Web-index discovery

Useful for

Biomedical and scientific 3D models.

Check before use

Medical models require heightened safety and intended-use warnings. Its published legacy API currently returns 404, so use official-site search until a supported replacement is documented.

MorphoSource

morphosource.org

Direct source search only

Useful for

Research-grade biological, archaeological and museum scans.

Check before use

Access, download and reuse restrictions vary by media record.

search aggregator

Specialist search engines

4 sources
Thangs

thangs.com

Direct source search only

Useful for

Large geometric-search catalog plus creator marketplace.

Check before use

Terms prohibit commercial scraping and bulk harvesting; use its own search page only unless partnered.

Yeggi

yeggi.com

Direct source search only

Useful for

Cross-site printable-model discovery.

Check before use

Aggregator results may be stale or duplicated; verify the final source page.

STL Finder

stlfinder.com

Direct source search only

Useful for

Additional long-tail STL discovery across model sites.

Check before use

Use only as a discovery route and validate every original source.

3DMDB

3dmdb.com

Direct source search only

Useful for

Broad generic 3D-model metasearch.

Check before use

Low print-readiness signal; validate source, license and geometry.

open repository

Open repositories

5 sources
Wikimedia Commons STL

commons.wikimedia.org

Live structured search

Useful for

Openly licensed STL files with machine-readable attribution metadata.

Check before use

Small and heterogeneous catalog; licenses remain file-specific.

API or terms reference
GitHub

github.com

Structured search when configured

Useful for

Open-source hardware projects with versioned CAD and documentation.

Check before use

Authenticated code search only sees indexed public files; repository licenses may not cover every asset.

API or terms reference
3D Warehouse

3dwarehouse.sketchup.com

Web-index discovery

Useful for

Large architecture, furniture and product-reference catalog.

Check before use

Models are generally not designed for printing; check rights and watertightness.

Blend Swap

blendswap.com

Web-index discovery

Useful for

Blender-native community models with license metadata.

Check before use

Source geometry usually needs printability inspection and conversion.

Internet Archive

archive.org

Live structured search

Useful for

Long-tail archived digital collections and project bundles.

Check before use

Metadata and rights quality varies considerably; archived copies may be stale.

API or terms reference

METHOD

Coverage is not the same as copying a catalog.

PrintWhat does not claim that every source is queried through a private API, and it does not re-host model files. A result may come from a documented API, an authorized web index, or a direct search link. Sources and access methods are reviewed as their public terms and interfaces change.

What the search can—and cannot—confirm

  • ✓ Candidate title, source, creator, license metadata and formats when exposed.
  • ✓ Direct source or download route when the provider supplies one.
  • × Exact fit, printability, safety or commercial-use rights without checking the original item.
  • × Permanent availability; creators and platforms can change or remove files.

SEARCH ALL SOURCES

Describe the thing—not just a filename.

Try the product, function, part number, dimensions or problem. If no usable model exists, send the evidence for modification or custom design.

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