Is the UK Data: Space weather and aurora MCP server safe?

No scan can promise that. What its definitions show: 8 tools, 8 of which can change, send or delete something, and 0 findings from fixed checks. Allow the reads, ask before each change, and deny the deletes; the permissions block on this page does that.

Can the UK Data: Space weather and aurora MCP server delete data?

No tool is classed as destructive: going by their definitions, none of them deletes, cancels or revokes anything.

Can the UK Data: Space weather and aurora MCP server do things that cannot be undone?

No tool is classed as irreversible: none of them sends, pays, publishes or merges, going by their definitions.

What tools does the UK Data: Space weather and aurora MCP server have?

8 tools: 8 write. kp_index_now, kp_forecast_3day, aurora_chance_at_location, space_weather_scales, space_weather_alerts, solar_flares_recent, solar_wind_speed and solar_flux_10cm.

Does the UK Data: Space weather and aurora MCP server need sign-in or OAuth?

Its remote endpoint listed its tools to an anonymous client, without sign-in.

Does the UK Data: Space weather and aurora MCP server send data to outside services?

None of its tools sends, posts or publishes, or takes a recipient, channel or URL.

Has the UK Data: Space weather and aurora MCP server changed its tools?

Not since anlyon.dev started tracking it. Last scanned Nov 7, 2026.

UK Data: Space weather and aurora MCP server

uk.co.reliness/space-weatherreliness.co.ukstreamable-httpv1.5.0Scanned 8 days ago

NOAA space weather: Kp index now and 3 days ahead, aurora chance anywhere, UK aurora outlook

8 tools: 8 change things.

Reads private data · 0
Reads text others write · 8
Can send data out · 0
No findings

Tools listed without sign-in. Remote posture

With Anlyon

8 tools here change things. Govern them.

Anlyon lists the tools and adopts none.
Each tool you adopt gets approvals and receipts.
Your agent never holds the key.

Govern this server →

A tool your agent calls directly is not routed through Anlyon and is not governed by it. anlyon.dev only lists and labels, and these labels are the same either way.

What the UK Data: Space weather and aurora MCP server can do

The UK Data: Space weather and aurora MCP server is published by reliness.co.uk, a domain the MCP Registry verified. It has 8 tools. It can create or change data (8 tools: kp_index_now, kp_forecast_3day, aurora_chance_at_location, space_weather_scales and 4 more), but cannot delete data. None of its tools only reads.

8 tools bring in text other people can write (kp_index_now, kp_forecast_3day, aurora_chance_at_location and 5 more).

None of the fixed checks matched anything in its tool definitions. That is not a safety guarantee.

Its remote endpoint lists its tools without sign-in.

Last scanned Nov 7, 2026, version 1.5.0.

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

8 tools

Changes things 8Creates or changes something that can be changed back.Claude Code: ask

aurora_chance_at_locationCan I see the northern (or southern) lights from here right now?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Can I see the northern (or southern) lights from here right now? Returns the probability of aurora overhead at a latitude and longitude from the NOAA SWPC OVATION model, a 30-90 minute forecast, plus the best chance within 5 degrees poleward (aurora there can show on the horizon). Works worldwide. It does not account for daylight, cloud or moonlight, and is not a multi-day forecast. (cost: 1 credit)
Annotations the server declares
- title: aurora chance at location
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
kp_forecast_3dayWill there be a geomagnetic storm in the next few days?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Will there be a geomagnetic storm in the next few days? Returns the NOAA SWPC predicted Kp for each 3-hour block over the next 3 days, the daily maximum, the peak block and any G-scale storm expected. For planning aurora trips and checking storm watches. Forecasts are uncertain by hours and 1-2 Kp; observed values are in kp_index_now. (cost: 1 credit)
Annotations the server declares
- title: kp forecast 3day
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
kp_index_nowWhat is the Kp index right now?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
What is the Kp index right now? Returns the current planetary Kp (0-9), its storm level (G1-G5 if any) and the 3-hourly values for the last 24 hours (or up to 7 days), from NOAA SWPC. Useful for aurora chasers, radio amateurs and anyone asking whether a geomagnetic storm is under way. It reports observed activity only; use kp_forecast_3day for the coming days. (cost: 1 credit)
Annotations the server declares
- title: kp index now
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
solar_flares_recentWas there a big solar flare today?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Was there a big solar flare today? Lists X-ray flares detected by the GOES satellites in the last 1-7 days, newest first, with class (A, B, C, M, X), begin, peak and end times, peak flux and the NOAA radio blackout level implied, plus the largest flare in the period. From NOAA SWPC. It covers flares only, not CMEs or whether a flare will affect Earth. (cost: 1 credit)
Annotations the server declares
- title: solar flares recent
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
solar_flux_10cmWhat is the solar flux index today?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
What is the solar flux index today? Returns the latest daily 10.7 cm solar radio flux (F10.7, in solar flux units), the standard solar activity measure radio amateurs use for HF band conditions, from NOAA SWPC, with a rough HF conditions guide. It is a single daily value; actual propagation also depends on Kp, time of day and season. (cost: 1 credit)
Annotations the server declares
- title: solar flux 10cm
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
solar_wind_speedHow fast is the solar wind right now?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
How fast is the solar wind right now? Returns the latest solar wind speed in km/s measured upstream of Earth, from NOAA SWPC, with a plain-language level (slow, moderate, fast, very fast). Aurora chasers use it to judge whether a CME or high-speed stream has arrived. Each answer gives the age of the reading and flags it as stale when it is over 30 minutes old, as the NOAA summary feed sometimes lags by hours. It does not include the magnetic field direction (Bz), which also matters for aurora. (cost: 1 credit)
Annotations the server declares
- title: solar wind speed
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
space_weather_alertsIs there a solar storm warning?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Is there a solar storm warning? Returns the latest official NOAA SWPC alerts, watches and warnings (geomagnetic storm watches, K-index warnings, flare and proton alerts) with type, headline, issue time and the verbatim message text. Useful for newsrooms and enthusiasts who need the official wording. The feed covers roughly the last few days only. (cost: 1 credit)
Annotations the server declares
- title: space weather alerts
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
space_weather_scalesHow bad is space weather right now?Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
How bad is space weather right now? Returns the current NOAA space weather scales for radio blackouts (R), solar radiation storms (S) and geomagnetic storms (G), the maximum of the past 24 hours, and NOAA SWPC probabilities for the next 3 days. Useful for HF radio users, pilots, drone and GPS users, satellite and grid operators and journalists. It gives levels and probabilities, not impact assessments for a specific system. (cost: 1 credit)
Annotations the server declares
- title: space weather scales
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write8: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; aurora_chance_at_location
kp_forecast_3day
kp_index_now
solar_flares_recent
solar_flux_10cm
solar_wind_speed
space_weather_alerts
space_weather_scales
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Nov 14, 2026, 12:24 UTC, unchanged since Nov 7, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 8
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: not observed
RFC 9728 protected resource metadata: not observed
Authorization servers: not observed
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 8 tools that change things (8 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://ukdata.reliness.co.uk/mcp/space-weather: tools/list returned 8 tools to an anonymous client, including kp_index_now (write), kp_forecast_3day (write), aurora_chance_at_location (write), space_weather_scales (write), space_weather_alerts (write) and 3 more
What this check looks for

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.5.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http space-weather https://ukdata.reliness.co.uk/mcp/space-weather

claude mcp add --transport http space-weather https://ukdata.reliness.co.uk/mcp/space-weather

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__space-weather__kp_index_now",
      "mcp__space-weather__kp_forecast_3day",
      "mcp__space-weather__aurora_chance_at_location",
      "mcp__space-weather__space_weather_scales",
      "mcp__space-weather__space_weather_alerts",
      "mcp__space-weather__solar_flares_recent",
      "mcp__space-weather__solar_wind_speed",
      "mcp__space-weather__solar_flux_10cm"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as space-weather. Review it before you use it.

Capability tags behind 8 rules

mcp__space-weather__kp_index_now untrusted-input
mcp__space-weather__kp_forecast_3day untrusted-input
mcp__space-weather__aurora_chance_at_location untrusted-input
mcp__space-weather__space_weather_scales untrusted-input
mcp__space-weather__space_weather_alerts untrusted-input
mcp__space-weather__solar_flares_recent untrusted-input
mcp__space-weather__solar_wind_speed untrusted-input
mcp__space-weather__solar_flux_10cm untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/uk.co.reliness/space-weather/verify?hash=c1185e7870f7e1ac44f166e6e5ed4fbe503e9f4a4cefd328ebfd6832e3ae1b2e" | jq -e '.changed == false'

Pinned hash c1185e7870f7, from Nov 7, 2026, 00:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/uk.co.reliness/space-weather/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/uk.co.reliness/space-weather.svg)](https://anlyon.dev/servers/uk.co.reliness/space-weather)

Source: MCP Registry. Synced Nov 7, 2026, 00:18 UTC.