SRS Lock-in Amplifier MCP Server

Let an AI agent read X/Y/R/θ, set the reference frequency, harmonic and phase, drive level, sensitivity and time constant, run auto phase/gain, and record bounded frequency sweeps on Stanford Research Systems DSP lock-in amplifiers, both the classic SR810/SR830 and the current SR860/SR865A. Its 15 documented tools cover auto, amplitude.

People who work with auto and amplitude 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 SRS Lock-in Amplifier

Claude Code

claude mcp add k-dense-ai-lab-instrument-mcps-servers-p -- uvx labmcp-srs-lockin

Claude Desktop / Cursor / VS Code - add to config

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

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-srs-lockin - 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 SRS Lock-in Amplifier can do

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

What you can build

An agent gets 15 documented tools spanning auto, amplitude, including auto_gain, auto_phase, auto_range, frequency_sweep.

Capability map

Tools grouped from the project's README - what SRS Lock-in Amplifier 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_settings · read_outputs

update

4 tools - e.g. Configure the signal input: A / A-B / current, AC or DC coupling, shield float/ground and (SR86x) the voltage input range. Use DC coupling below ~160 mHz. Omitt; Set the reference: source…

set_input · set_reference · set_sensitivity · set_time_constant

Auto

3 tools - e.g. Pick the sensitivity automatically for the present signal (SR830 AGAN / SR86x ASCL). On the SR830 AGAN does nothing when the time constant is longer than 1 s.; Run Auto Phase (APHS): shift the reference…

auto_gain · auto_phase · auto_range

Amplitude

2 tools - e.g. Set the SINE OUT amplitude (V rms), which drives the sample or excitation circuit. Refused above the max_amplitude_v safety limit. Tell the user the new drive l; Turn the sine output down to the…

set_amplitude · set_amplitude_minimum

Frequency

1 tool - e.g. Step the internal reference (and SINE OUT drive) from start_hz to stop_hz, waiting for the output filter to settle at each point, and record X/Y/R/θ vs frequenc

frequency_sweep

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

Limitations (from the README)

- The sine output is the hazard. It drives your sample (heating, electromigration, piezo stress). set_amplitude checks max_amplitude_v; set_amplitude_minimum is the closest thing to "output off": the SR810/SR830 cannot go below 4 mV rms, so disconnect the cable if the sample must see no drive. On the SR86x it sets 1 nV rms and a 0 V DC level (SOFF). The SR830 powers up and resets (RST) to 1.000 V rms. - Every set com

04 · Who maintains SRS Lock-in Amplifier

SRS Lock-in Amplifier 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/srs-lockin
category: other - actively maintained as of 2026-09-30.
registry: io.github.K-Dense-AI/labmcp-srs-lockin (active, first published 2026-09-26 · 4 versions)
packages: pypi:labmcp-srs-lockin

06 · SRS Lock-in Amplifier FAQ

Is SRS Lock-in Amplifier still maintained?

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

What can SRS Lock-in Amplifier do?

An agent gets 15 documented tools spanning auto, amplitude, including auto_gain, auto_phase, auto_range, frequency_sweep.

How do I install SRS Lock-in Amplifier?

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

Does SRS Lock-in Amplifier 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 SRS Lock-in Amplifier

Alternatives to SRS Lock-in Amplifier

Maintained other servers if SRS Lock-in Amplifier isn't the fit.

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