Aviation Weather MCP Server

@cyanheads/aviation-weather-mcp-server Fetch METARs, TAFs, PIREPs, and domestic SIGMETs from the NWS Aviation Weather Center via MCP. STDIO or Streamable HTTP. Its README documents 5 tools, including aviation_find_stations, aviation_get_metar, aviation_get_taf.

People who work with aviation, cyanheads and metar and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-10 · ★ 2 · #17 OF 66 MAINTAINED MAPS & LOCATION · VERIFIED 2026-09-18

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

01 · Install Aviation Weather MCP Server

before you install - you'll need

Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL before connecting.

Claude Code

claude mcp add cyanheads-aviation-weather-mcp-server --transport http https://aviation-weather.caseyjhand.com/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "cyanheads-aviation-weather-mcp-server": {
      "url": "https://aviation-weather.caseyjhand.com/mcp"
    }
  }
}

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

https://aviation-weather.caseyjhand.com/mcp

transport: streamable-http

endpoint alive - responded to MCP initialize · probed 2026-09-17

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 · remote - your agent's requests go to aviation-weather.caseyjhand.com

endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect

license Apache-2.0 - declared in the repository

npm package @cyanheads/aviation-weather-mcp-server - published under the repo owner's npm scope (@cyanheads)

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

03 · What Aviation Weather MCP Server can do

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

What you can build

An agent gets 5 documented tools, including aviation_find_stations, aviation_get_metar, aviation_get_taf, aviation_get_pireps, aviation_get_advisories.

The 5 tools it gives your agent

Extracted from the project's README - what aviation-weather-mcp-server lets an agent do.

aviation_find_stations
- Resolve airports and weather stations by identifier, bounding box, or US state. Returns ICAO/IATA/FAA IDs, coordinates, elevation, and available data types.
aviation_get_metar
- Get current weather observations (METARs) for one or more airports. Returns decoded wind, visibility, ceiling, present weather, temp/dewpoint, altimeter, cloud
aviation_get_taf
- Get Terminal Aerodrome Forecasts for one or more airports. Returns each forecast period with valid times, surface wind, low-level wind shear, visibility, decode
aviation_get_pireps
- Get recent Pilot Reports near an airport or within a bounding box. Returns decoded turbulence, icing, and cloud reports with altitude, aircraft type, intensity,
aviation_get_advisories
- Get active domestic SIGMETs for a region. Returns hazard type (CONVECTIVE, TURBULENCE, ICING, IFR), severity, altitude range, valid period, polygon coordinates,

Latest releases

v0.4.6 · 2026-09-10

preflight brief route context · aviation_preflight_brief gains optional departure_time, cruise_altitude, and route_waypoints args that narrow the TAF, PIREP, and advisories steps (#22) · Station calls now chunk to each…

v0.4.5 · 2026-09-10

response-size limit and station identifier handling · limit on aviation_get_pireps bounds response size after the recency sort, disclosed via limited/matched apart from the upstream cap (#34) · limit on…

v0.4.4 · 2026-09-10

upstream hazard filter and empty-result disclosure · aviation_get_advisories: hazard filter now matches AWC's own conv/turb/ice/ifr parameter instead of a client-side substring test against an undocumented vocabulary…

04 · Who maintains Aviation Weather MCP Server

aviation-weather-mcp-server is maintained by cyanheads. We track 125 MCP servers from cyanheads - 119 actively maintained, 1,816 combined GitHub stars, oldest repo from Dec 2024. Full record: all servers from cyanheads.

  1. obsidian-mcp-server Read, write, search, and surgically edit Obsidian notes, tags, and frontmatter via MCP. ★ 681
  2. mcp-ts-core Agent-native TypeScript framework for MCP servers. ★ 151
  3. pubmed-mcp-server Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms. ★ 148
  4. git-mcp-server Comprehensive Git MCP server enabling native git tools including clone, commit, worktree, & more. ★ 240
  5. clinicaltrialsgov-mcp-server Search ClinicalTrials.gov - find studies, retrieve results, match patients to eligible trials. ★ 94
  6. ntfy-mcp-server Send, manage, and replay ntfy push notifications via MCP. ★ 22

05 · Facts

category
maps & location - ranked #17 of 66 actively-maintained maps & location servers as of 2026-09-18.
release cadence
10+ releases in the last 90 days (latest 2026-09-10)
registry
io.github.cyanheads/aviation-weather-mcp-server (active, first published 2026-06-05 · 18 versions)
packages
npm:@cyanheads/aviation-weather-mcp-server · npm:@cyanheads/aviation-weather-mcp-server

06 · Aviation Weather MCP Server FAQ

Is Aviation Weather MCP Server still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-10 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

What can Aviation Weather MCP Server do?

An agent gets 5 documented tools, including aviation_find_stations, aviation_get_metar, aviation_get_taf, aviation_get_pireps, aviation_get_advisories.

How do I install Aviation Weather MCP Server?

Run `npx -y @cyanheads/aviation-weather-mcp-server`. The README documents 2 environment variables (MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL) to set first. Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL before connecting. You can also paste the ready-made client config above.

Does Aviation Weather MCP Server require authentication?

No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-09-17; you can connect without credentials.

07 · Alternatives to Aviation Weather MCP Server