Physbound MCP Server

Physical Layer Linter - an MCP server that validates RF and physics calculations against hard physical limits, catching AI hallucinations in engineering workflows. Its 6 documented tools cluster into radar, link, shannon, noise. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-09-14 · ★ 2 · #93 OF 168 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-09-18

MIT · Python servers · how we verify → /methodology

01 · Install Physbound

Claude Code

claude mcp add jonesrobm-physbound -- uvx physbound

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "jonesrobm-physbound": {
      "command": "uvx",
      "args": [
        "physbound"
      ]
    }
  }
}

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

license MIT - declared in the repository

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

registry namespace io.github.JonesRobM is GitHub-verified and matches the repo owner

03 · What Physbound can do

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

What you can build

An agent gets 6 documented tools across radar, link, shannon, including rf_link_budget, shannon_hartley, noise_floor, radar_range.

Capability map

Tools grouped from the project's README - what Physbound lets an agent do.

Radar

2 tools - e.g. Computes the monostatic radar range equation R_max = [P_t G^2 lambda^2 sigma / ((4pi)^3 S_min L)]^(1/4) and validates detection-range claims.; Computes pulse-Doppler ambiguity limits for a given carrier…

radar_range · radar_ambiguity

Link

1 tool - e.g. Computes a complete RF link budget using the Friis transmission equation and validates antenna gains against physical limits.

rf_link_budget

Shannon

1 tool - e.g. Computes Shannon-Hartley channel capacity C = B log2(1 + SNR) and validates throughput claims.

shannon_hartley

Noise

1 tool - e.g. Computes thermal noise power N = k_B T B, cascades noise figures through multi-stage receivers with the Friis noise formula, and calculates receiver sensitivity

noise_floor

Antenna

1 tool - e.g. Analyses a single antenna from its diameter or physical area: gain limits, beamwidth, and far-field distance, with optional validation of a claimed gain.

antenna_gain

Latest releases

v0.3.0 · 2026-08-31

Added · antenna_gain tool (engines/antenna.py, models/antenna.py) - standalone aperture gain calculator: D_0 = (pi D / lambda)^2, G = eta D_0, effective aperture A_e = eta A_phys, half-power beamwidth (70 lambda/D…

04 · Who maintains Physbound

physbound is maintained by jonesrobm. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/jonesrobm/physbound
category: developer tools - ranked #93 of 168 actively-maintained developer tools servers as of 2026-09-18.
release cadence: 1 release in the last 90 days (latest 2026-08-31)
registry: io.github.JonesRobM/physbound (active, first published 2026-02-08 · 3 versions)
packages: pypi:physbound

06 · Physbound FAQ

Is Physbound still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-14 and it shipped 1 release in the last 90 days. We re-verify nightly.

What can Physbound do?

An agent gets 6 documented tools across radar, link, shannon, including rf_link_budget, shannon_hartley, noise_floor, radar_range.

How do I install Physbound?

Run `uvx physbound`. You can also paste the ready-made client config above.

Does Physbound 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 Physbound

Alternatives to Physbound

Maintained developer tools servers if Physbound isn't the fit.

Pairs well with

Servers that cover what Physbound doesn't - only shown when the pairing reason fits the companion.

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