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UK Data: Weather forecasts worldwide MCP server

uk.co.reliness/weather-forecastsreliness.co.ukstreamable-httpv1.5.0Scanned

Worldwide weather forecasts hour by hour and day by day: rain, UV, wind, sea state and temperature

8 tools: 8 change things.

Tools: 0 delete, 0 irreversible, 8 write, 0 read.
  • 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: Weather forecasts worldwide MCP server can do

The UK Data: Weather forecasts worldwide 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: rain_forecast_next_hours, uv_index_forecast, wind_forecast, cloud_cover_forecast and 4 more), but cannot delete data. None of its tools only reads.

8 tools bring in text other people can write (rain_forecast_next_hours, uv_index_forecast, wind_forecast 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 8Claude Code: ask
  • cloud_cover_forecastHourly cloud cover for the next 1-48 hours at any point, split into total, low, medium and high cloud plus fog, with the clearest hour picked out.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
    Hourly cloud cover for the next 1-48 hours at any point, split into total, low, medium and high cloud plus fog, with the clearest hour picked out. For stargazing, astrophotography, aurora or sunset photography, and estimating solar panel output. Source: MET Norway Locationforecast 2.0 (percent of sky covered, model forecast). Fog is only given for the first few days. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: cloud cover forecast
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • marine_forecastSea-state forecast for a sea point in northern European waters (Norwegian Sea, North Sea, Skagerrak, Barents Sea and nearby north-east Atlantic, including UK coastal waters): hourl…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
    Sea-state forecast for a sea point in northern European waters (Norwegian Sea, North Sea, Skagerrak, Barents Sea and nearby north-east Atlantic, including UK coastal waters): hourly significant wave height and direction, surface current speed and direction, and sea temperature. For sailing, kayaking, fishing trips and coastal swims. Source: MET Norway Oceanforecast 2.0 (nearest model sea point). Not a navigational or safety product; points on land or outside the model area return no rows. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: marine forecast
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • moon_phaseMoon phase for any place and date: phase name (new, crescent, quarter, gibbous, full), whether it is waxing, approximate illuminated fraction, days from the nearest full moon, the …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
    Moon phase for any place and date: phase name (new, crescent, quarter, gibbous, full), whether it is waxing, approximate illuminated fraction, days from the nearest full moon, the dates of the next full moon and next new moon, moonrise and moonset with bearings, and the moon's highest point. Answers "is it a full moon tonight" and "when is the next full moon" for stargazers, anglers, photographers and night walks. Source: MET Norway Sunrise 3.0 for rise, set and phase angle; full and new moon times are our own calculation (Meeus lunar-phase formulas, accurate to a few minutes) and illumination is approximate. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: moon phase
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • rain_forecast_next_hoursAnswers "will it rain?" for the next 1-12 hours at any point: whether rain (or snow, as liquid water) is forecast, the first wet hour, the total, and the amount hour by hour.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
    Answers "will it rain?" for the next 1-12 hours at any point: whether rain (or snow, as liquid water) is forecast, the first wet hour, the total, and the amount hour by hour. Useful before a walk, run, school run or outdoor job. Source: MET Norway Locationforecast 2.0 hourly precipitation (model forecast, not radar nowcast), times in UTC. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: rain forecast next hours
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • sea_temperatureSea surface temperature forecast at a coastal or offshore point in northern European waters (including UK coasts): the temperature now, the range over the next 24 hours, and hourly…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
    Sea surface temperature forecast at a coastal or offshore point in northern European waters (including UK coasts): the temperature now, the range over the next 24 hours, and hourly values. For open-water swimmers, surfers, divers and anglers. Source: MET Norway Oceanforecast 2.0 (model sea temperature at the nearest model sea point). Not a measured buoy reading; points on land or outside the model area return no rows. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: sea temperature
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • sunrise_sunsetSunrise, sunset, solar noon and day length for any place on Earth and any date, with the sun's compass bearing at rise and set, its height at noon, and civil twilight (first light …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
    Sunrise, sunset, solar noon and day length for any place on Earth and any date, with the sun's compass bearing at rise and set, its height at noon, and civil twilight (first light and last light) and golden-hour times. Handles polar day and polar night. For photographers, walkers, anglers, prayer and event timing. Source: MET Norway Sunrise 3.0 for sunrise, sunset and noon; twilight and golden hour are our own calculation (standard NOAA solar-position formulas) and labelled as derived. Times are in the UTC offset you give, default +00:00: pass +01:00 for UK summer time (BST), as daylight saving is not applied for you. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: sunrise sunset
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • uv_index_forecastHourly clear-sky UV index for one day at any point, with the day's peak UV, the time of the peak and the WHO exposure band (low, moderate, high, very high, extreme) with plain prot…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
    Hourly clear-sky UV index for one day at any point, with the day's peak UV, the time of the peak and the WHO exposure band (low, moderate, high, very high, extreme) with plain protection advice. For sun-safety, outdoor work and holiday planning. Source: MET Norway Locationforecast 2.0. Values assume a cloudless sky, so real UV is lower under cloud (cloud cover is included); UV is only given for the first few days of the forecast. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: uv index forecast
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • wind_forecastHourly wind forecast for the next 1-48 hours at any point: mean wind speed in mph, km/h, knots and m/s, the compass direction it blows from, and the Beaufort force with its name (f…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
    Hourly wind forecast for the next 1-48 hours at any point: mean wind speed in mph, km/h, knots and m/s, the compass direction it blows from, and the Beaufort force with its name (for example "fresh breeze"). For cycling, sailing, drone flying, kite flying or securing garden furniture. Source: MET Norway Locationforecast 2.0. Speeds are 10-minute mean winds at 10 m; gusts are included only where MET Norway provides them. Needs lat and lon: for a UK place name or postcode, get coordinates from geocode or postcode_lookup first. (cost: 1 credit)

    Annotations the server declares

    • title: wind forecast
    • 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.
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/weather-forecasts: tools/list returned 8 tools to an anonymous client, including rain_forecast_next_hours (write), uv_index_forecast (write), wind_forecast (write), cloud_cover_forecast (write), marine_forecast (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.

Install

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

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

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__weather-forecasts__rain_forecast_next_hours",
      "mcp__weather-forecasts__uv_index_forecast",
      "mcp__weather-forecasts__wind_forecast",
      "mcp__weather-forecasts__cloud_cover_forecast",
      "mcp__weather-forecasts__marine_forecast",
      "mcp__weather-forecasts__sea_temperature",
      "mcp__weather-forecasts__sunrise_sunset",
      "mcp__weather-forecasts__moon_phase"
    ],
    "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 weather-forecasts. Review it before you use it.

Capability tags behind 8 rules
  • mcp__weather-forecasts__rain_forecast_next_hours untrusted-input
  • mcp__weather-forecasts__uv_index_forecast untrusted-input
  • mcp__weather-forecasts__wind_forecast untrusted-input
  • mcp__weather-forecasts__cloud_cover_forecast untrusted-input
  • mcp__weather-forecasts__marine_forecast untrusted-input
  • mcp__weather-forecasts__sea_temperature untrusted-input
  • mcp__weather-forecasts__sunrise_sunset untrusted-input
  • mcp__weather-forecasts__moon_phase untrusted-input

Pin

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/weather-forecasts/verify?hash=53c0f83446b7e934ea6a83aebfb0c51474db40d86c6d2d101deec0578ca94cf1" | jq -e '.changed == false'

Pinned hash 53c0f83446b7, 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/weather-forecasts/changes.xml

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

Badge

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

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

UK Data: Weather forecasts worldwide MCP server: questions and answers

Answered from the scan above, not from the publisher's description.

Is the UK Data: Weather forecasts worldwide 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: Weather forecasts worldwide 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: Weather forecasts worldwide 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: Weather forecasts worldwide MCP server have?

8 tools: 8 write. rain_forecast_next_hours, uv_index_forecast, wind_forecast, cloud_cover_forecast, marine_forecast, sea_temperature, sunrise_sunset and moon_phase.

Does the UK Data: Weather forecasts worldwide MCP server need sign-in or OAuth?

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

Does the UK Data: Weather forecasts worldwide 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: Weather forecasts worldwide MCP server changed its tools?

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