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SHEARLINE MCP server

by lostnumber07·io.github.lostnumber07/shearline·v1.1.0
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Analyst-grade US severe weather: warnings, SPC outlooks, RAP environment, MRMS, GLM lightning

A89/100grade A
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Safety scan
A89/100

full report

Adoption
Growing

1 stars29 downloads/wk

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

SHEARLINE tools (10)

write = sends, deletes, buys or posts

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

  • get_active_warnings

    Active NWS severe-weather warning polygons near a CONUS point.

  • get_environment_trend

    RAP forecast-environment trend at a CONUS point (the anticipatory view).

  • get_historical_storm_reports

    Local Storm Reports near a CONUS point on a specific PAST date.

  • get_lightning

    GOES GLM total-lightning activity near a CONUS point in the recent window.

  • get_mrms_severe

    MRMS radar-derived severe weather products near a CONUS point.

  • get_point_environment

    RAP-analysis severe-weather environment at a CONUS point.

  • get_radar_snapshot

    Latest NEXRAD Level 2 volume metadata from the nearest WSR-88D radar.

  • get_spc_outlook

    SPC convective outlook at a CONUS point for day 1, 2, or 3.

  • get_storm_reports

    Local Storm Reports (spotter/official reports) near a CONUS point.

  • get_threat_brief

    Composite severe-weather threat brief for a CONUS point.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan22 source files scanned25/25
  • –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 13 days ago15/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 89/100. 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 SHEARLINE repository's README, as published. We do not edit it. Read it on GitHub

<!-- mcp-name: io.github.lostnumber07/shearline -->

SHEARLINE

The severe-weather analyst your agent doesn't have. SHEARLINE is a free, MIT-licensed MCP server that gives AI agents analyst-grade US severe-weather tools: live warning polygons with Impact-Based Warning tags, SPC convective outlooks, RAP-derived point environments and forecast trends (CAPE/shear/SRH/STP computed with MetPy), MRMS radar-derived hail and rotation products, GOES lightning, ground-truth storm reports (real-time and historical), and a composite threat brief that synthesizes all of it. A dozen weather MCPs already wrap the basic forecast API; SHEARLINE deliberately skips everything they do and ships only what requires radar meteorology to expose correctly.

Informational only. Not a substitute for official NWS warnings. Every tool repeats this, because it matters: when weather threatens, follow official warnings from weather.gov and local authorities.

Tools

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 shearline -- uvx shearline
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SHEARLINE: common questions

Is SHEARLINE MCP server safe?
Yes, by our scan: it is graded A (89/100). Read the SHEARLINE safety report
How do I install SHEARLINE?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does SHEARLINE need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is SHEARLINE maintained?
The last commit was 13 days ago (2026-09-14). The latest release is v1.1.0.
What can I use instead of SHEARLINE?
Servers from other publishers that do the same job: Weather Data MCP Server, Smarter Weather MCP server and Meteoswiss MCP server. Compare all SHEARLINE alternatives.

Alternatives to SHEARLINE

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