Keithley SourceMeter SMU MCP Server

Let an AI agent source voltage or current with a compliance limit, measure V and I, and run bounded IV sweeps (linear, log, dual) on Keithley (Tektronix) SourceMeter SMUs. Every sweep ends with the output switched off, even when something goes wrong. The server speaks all three Keithley remote dialects: 2400-series SCPI, 2450-family SCPI, and 2600B TSP. Its 12 documented tools cover source, output.

People who work with source and output and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

One of 32 MCP servers published from k-dense-ai/lab-instrument-mcps. Stars and repository activity are shared across all of them. See all 32 →

VERIFIED ACTIVE

LAST COMMIT 2026-09-26 · VERIFIED 2026-09-30

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Keithley SourceMeter SMU

Claude Code

claude mcp add k-dense-ai-lab-instrument-mcps-servers-p -- uvx labmcp-keithley-smu

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "k-dense-ai-lab-instrument-mcps-servers-p": {
      "command": "uvx",
      "args": [
        "labmcp-keithley-smu"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-09-25 - young repo, little track record yet

license Apache-2.0 - declared in the repository

pypi package labmcp-keithley-smu - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.K-Dense-AI is GitHub-verified and matches the repo owner

03 · What Keithley SourceMeter SMU can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

An agent gets 12 documented tools spanning source, output, including configure_source, get_command_log, get_connection_info, get_device_info.

Capability map

Tools grouped from the project's README - what Keithley SourceMeter SMU lets an agent do.

read & search

4 tools - e.g. Return the most recent raw commands sent to / replies received from the instrument (newest last). Useful for debugging and for recording what was done.; Report which instrument is connected (identity…

get_command_log · get_connection_info · get_device_info · get_status

Output

2 tools - e.g. Switch the SMU output OFF immediately (and abort any IV sweep in progress). Always available, including in read-only mode.; Switch the SMU output ON: the configured voltage or current is applied to the…

output_off · output_on

update

2 tools - e.g. Select 4-wire (remote sense, Kelvin) or 2-wire measurement. 4-wire removes lead resistance for low-resistance DUTs but needs the SENSE leads connected. Refused ; Change the level of the configured source.…

set_4wire · set_source_level

Configure

1 tool - e.g. Set up the source (function, level, compliance, range, measurement speed) while the output is OFF. Measures V and I with auto-ranging. Refused if the output is

configure_source

Measure

1 tool - e.g. Take one source-measure reading (voltage, current, V/I, power, compliance flag) of the energised DUT. Does not change any setting; refused if the output is off.

measure

Reconnect

1 tool - e.g. Close and re-open the connection to the instrument (e.g. after it was power cycled or a cable was re-plugged).

reconnect

run & execute

1 tool - e.g. Run a stepped IV sweep: configure the source, switch the output ON, step through the levels measuring V and I at each, then ALWAYS switch the output OFF (also o

run_iv_sweep

Limitations (from the README)

- Simple, verifiable commands. Sweeps are stepped loops: set the level, wait delay_s, take one reading, check compliance. Built-in instrument sweeps and trigger models are not used, so every point shows up in get_command_log. The output is switched off in a try/finally at the end of every sweep. Calling output_off while a sweep runs (even while it is still configuring) sets an abort flag and switches the output off a

04 · Who maintains Keithley SourceMeter SMU

Keithley SourceMeter SMU is maintained by k-dense-ai. We track 32 MCP servers from k-dense-ai - 32 actively maintained, 9 combined GitHub stars, oldest repo from Sep 2026. Full record: all servers from k-dense-ai.

05 · Facts

repository: github.com/k-dense-ai/lab-instrument-mcps
website: https://github.com/K-Dense-AI/lab-instrument-mcps/tree/main/servers/physics/keithley-smu
category: other - actively maintained as of 2026-09-30.
registry: io.github.K-Dense-AI/labmcp-keithley-smu (active, first published 2026-09-26 · 3 versions)
packages: pypi:labmcp-keithley-smu

06 · Keithley SourceMeter SMU FAQ

Is Keithley SourceMeter SMU still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-26. We re-verify nightly.

What can Keithley SourceMeter SMU do?

An agent gets 12 documented tools spanning source, output, including configure_source, get_command_log, get_connection_info, get_device_info.

How do I install Keithley SourceMeter SMU?

Run `uvx labmcp-keithley-smu`. You can also paste the ready-made client config above.

Does Keithley SourceMeter SMU run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Keithley SourceMeter SMU

Alternatives to Keithley SourceMeter SMU

Maintained other servers if Keithley SourceMeter SMU isn't the fit.

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