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VisualTorch MCP server

by willyfh·io.github.willyfh/visualtorch·v1.4.1
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Render PyTorch architecture diagrams and animated GIF reveals from trusted model source.

A85/100grade A
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Safety scan
A85/100

full report

Adoption
Established

332 stars227 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

VisualTorch tools (4)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • animate_model

    Render a trusted PyTorch model source as an animated VisualTorch GIF.

  • visualize_model

    Render a trusted PyTorch model source as a static VisualTorch PNG.

  • visualtorch_capabilities

    Return structured styles, options, palettes, output contracts, and safety constraints.

  • visualtorch_reference

    Return canonical upstream VisualTorch documentation links for all or one style.

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

1 medium
  • Code scan24 source files scanned20/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • mediumeval / new Function usedexec.eval
    visualtorch-1.4.1/visualtorch_mcp/worker.py: … raise TypeError(message) model = eval(model_expression, namespace) # noqa: S3…
Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the VisualTorch repository's README, as published. We do not edit it. Read it on GitHub

VisualTorch aims to help visualize Torch-based neural network architectures. It currently supports generating flow-style, graph-style, and LeNet-style architectures for PyTorch Sequential and Custom models. Its original visual styles were inspired by visualkeras, pytorchviz, pytorch-summary, and torchview; since then, it has grown its own unified tracing backend and architecture-handling logic well beyond its origins.

Note: 1.0+ is a major release with breaking API changes, but with significantly better features and algorithms - upgrading is recommended. For the old API, use 0.2.5 or older.

Limitation: VisualTorch traces a real forward pass to build the diagram, which has an inherent limitation shared by any tracing-based approach (not a bug, and not fixable without full symbolic execution): models with data-dependent control flow (e.g. a branch only taken if a tensor value crosses some threshold) only show whichever branch the traced dummy input happened to take. Separately, a layer that returns multiple meaningful output tensors (e.g. a custom multi-task head, or nn.LSTM's (output, (hn, cn))) still has its node's size based on only its first tensor; with show_dimension=True, every output tensor's shape is shown in the label, not just the first. Downstream connections are correct either way. Contributions are welcome!

Animated Reveal

Every style can also render as an animated GIF, revealing the model one layer/column at a time, via visualtorch.animate(model, input_shape, style=...) - see it in action for flow, graph, and lenet styles.

Documentation

Online documentation is available at visualtorch.readthedocs.io.

The docs include usage examples, API references, and other useful information.

Installation

See the Installation page.

MCP integration

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

claude mcp add visualtorch -- uvx visualtorch
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VisualTorch: common questions

Is VisualTorch MCP server safe?
Yes, by our scan: it is graded A (85/100). Read the VisualTorch safety report
How do I install VisualTorch?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does VisualTorch need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is VisualTorch maintained?
The last commit was in the last day (2026-09-24). The latest release is v1.4.1.
What can I use instead of VisualTorch?
Servers from other publishers that do the same job: Agent-Native Plan MCP server, three.ws Avatars MCP server and UI Beats MCP server. Compare all VisualTorch alternatives.

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