ltspice-mcp
MCP tools for LTspice/ngspice circuit simulation and LTspice .asc schematic editing. Structured results include per-device operating points (gm/gds/vth) by device name, without…
Plugin bundle · by cognitohazard
About
ltspice-mcp is a plugin bundle for AI coding tools published by cognitohazard. Marketplaces we read that list it: 2 (Community GitHub marketplaces, PyPI (MCP servers)). The last change we recorded was on 2026-11-01. As of our marketplace pass on 2026-11-03.
MCP tools for LTspice/ngspice circuit simulation and LTspice .asc schematic editing. Structured results include per-device operating points (gm/gds/vth) by device name, without parsing raw files. Requires uv and a simulator (LTspice or ngspice) on the host; the server is fetched from PyPI via uvx on first use.
What it asks for
- Runs on your machine
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
PyPI ltspice-mcp (ltspice-mcp on PyPI)
- PyPI downloads/week: 336 (2026-11-01)
- PyPI downloads/month: 1 151 (2026-11-01)
- Latest version on PyPI: 0.7.0, published 2026-10-22
PyPI facts come from pypi.org, PyPI downloads from pypistats.org. Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero.
Works with
- Claude Code
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a Claude Code plugin
Built from what Community GitHub marketplaces declares.
/plugin marketplace add cognitohazard/ltspice-mcp
/plugin install ltspice-mcp@ltspice-mcpWhere it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| PyPI (MCP servers) (Open on PyPI) | Listed | 0.7.0 | Downloads/month (PyPI): 1 151 Downloads/week (PyPI): 336 Forks (GitHub): 8 Stars (GitHub): 68 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
Also listed in one community marketplace
| Marketplace | Repository | Stars (GitHub) |
|---|---|---|
| ltspice-mcp | cognitohazard/ltspice-mcp | 68 |
How its figures have moved
- 2026-10-298
- 2026-11-028
- 2026-10-1658
- 2026-10-1759
- 2026-10-2060
- 2026-10-2162
- 2026-10-2265
- 2026-10-2366
- 2026-10-2967
- 2026-10-3168
- 2026-11-0268
Each dot is a day we read a different number; flat stretches are days the number did not move. Figures of different marketplaces are never added up.
What the bundle contains
As published on Community GitHub marketplaces.
MCP servers: 1
spice
Skills: 1
spice-guide
What changed
- PyPI (MCP servers): released version 0.7.0 (was 0.6.1)
- Became a product we track
- Community GitHub marketplaces: appeared
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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
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