EM Snow
REMOTE · SNOW.EXTREME-MEDIA.CO.UK · SCANNED SEP 28
Ski resort conditions, forecasts, avalanche danger, sun, routes and snow history for 5,000+ resorts.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability66
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1395 tokens (~66/item across 21 items; 21 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 21 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 22 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the EM Snow MCP server?
EM Snow is a hosted endpoint at https://snow.extreme-media.co.uk/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · snow.extreme-media.co.uk
claude mcp add --transport http uk-co-extreme-media-snow-em-snow 'https://snow.extreme-media.co.uk/mcp'
{
"mcpServers": {
"uk-co-extreme-media-snow-em-snow": {
"url": "https://snow.extreme-media.co.uk/mcp"
}
}
} {
"servers": {
"uk-co-extreme-media-snow-em-snow": {
"type": "http",
"url": "https://snow.extreme-media.co.uk/mcp"
}
}
} [mcp_servers.uk-co-extreme-media-snow-em-snow] url = "https://snow.extreme-media.co.uk/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"uk-co-extreme-media-snow-em-snow": {
"type": "remote",
"url": "https://snow.extreme-media.co.uk/mcp",
"enabled": true
}
}
} openclaw mcp add uk-co-extreme-media-snow-em-snow --url 'https://snow.extreme-media.co.uk/mcp' --transport streamable-http
mcp_servers:
uk-co-extreme-media-snow-em-snow:
url: "https://snow.extreme-media.co.uk/mcp" {
"McpServers": {
"uk-co-extreme-media-snow-em-snow": {
"Transport": "http",
"Url": "https://snow.extreme-media.co.uk/mcp"
}
}
} assistant mcp add uk-co-extreme-media-snow-em-snow -t streamable-http -u 'https://snow.extreme-media.co.uk/mcp'
{
"mcpServers": {
"uk-co-extreme-media-snow-em-snow": {
"type": "http",
"url": "https://snow.extreme-media.co.uk/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 69
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 28 Sept 2026 · Probed https://snow.extreme-media.co.uk/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=extreme-media.co.uk | CN=WE1,O=Google Trust Services,C=US | 30 Aug 2026 | 28 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | 1d1d4dbc583f20d00ed1708b1a492b46 |
| SANs: extreme-media.co.uk, *.extreme-media.co.uk | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of snow.extreme-media.co.uk. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| uk. | present | 43876 | 8 | Verified |
| co.uk. | present | 11810 | 8 | Verified |
| extreme-media.co.uk. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'self';script-src 'self' 'unsafe-inline' https://unpkg.com https://esm.sh https://www.googletagmanager.com;script-src-attr 'unsafe-inline';style-src 'self' 'unsafe-inline' https://unpkg.com;font-src 'self' https://unpkg.com;worker-src 'self' blob:;media-src 'self' blob:;img-src 'self' data: blob: https://*.tile.openstreetmap.org https://unpkg.com https://*.basemaps.cartocdn.com https://*.onthesnow.com https://*.amazonaws.com https://upload.wikimedia.org https://commons.wikimedia.org https://*.rainviewer.com https://tiles.opensnowmap.org https://*.tile.opentopomap.org https://*.tile.thunderforest.com https://tile.waymarkedtrails.org https://gibs.earthdata.nasa.gov https://www.foto-webcam.eu https://*.windy.com https://server.arcgisonline.com https://wmts.geo.admin.ch https://mapsneu.wien.gv.at https://data.geopf.fr https://tiles.maps.eox.at https://ibasemaps-api.arcgis.com https://*.google-analytics.com https://*.googletagmanager.com;frame-src 'self' https://www.youtube.com https://www.youtube-noco |
| x-content-type-options | nosniff |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://snow.extreme-media.co.uk/mcp | Verified | 200 | |
| http (plaintext) | http://snow.extreme-media.co.uk/mcp | HTTPS enforced | 301 | https://snow.extreme-media.co.uk/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
add_snow_report Add snow report ~86
Only relay a report from a person who is at, or was just at, the resort. Never invent a report. The report goes live immediately and is labelled as relayed via an AI assistant.
| Name | Type | Req | Description |
|---|---|---|---|
| observed_today | boolean | – | – |
| rating | integer | – | – |
| resort | string | yes | – |
| tags | array | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
avalanche_danger Avalanche danger ~79
Summarise the regional avalanche bulletin covering a resort: EAWS in Europe, avalanche.org centres in the US and Avalanche Canada, with zone, issuing centre, issue and expiry times and a link to the official forecast. Expired products are never shown as current. Never substitutes for the official bulletin or local advice.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
best_time_to_go Best time to go ~39
Get historical snow odds from the local ERA5 archive and quiet-week guidance where the crowd scorer covers the resort.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
fly_this_mountain Fly this mountain ~133
Get a link that plays a simulated 3D tour of a resort in the EM Snow flyby (lifts up, named runs down, on the mapped piste network), or a tour of runs you name. Pick names match like route_on_mountain; ambiguous names return candidates with picker ids. Status is ready, limited (small mapped network, the tour may be short) or unavailable (too few named runs or no linking lifts; the resort page is returned instead).
| Name | Type | Req | Description |
|---|---|---|---|
| level | string | – | – |
| pick | array | – | – |
| resort | string | yes | – |
| runs | integer | – | – |
No output schema declared.
No examples provided.
get_conditions Get conditions ~42
Get current snow, reported lift and run counts, weather and season state. Lift and run counts are reported status, not guaranteed live.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
get_extended_outlook Get extended outlook ~93
Get a 16-day daily outlook (snowfall, temperatures, freezing level, maximum gusts and, for the first days, precipitation probability) from EM Snow's self-hosted GFS and ECMWF IFS models. Days 1 to 7 overlap get_forecast; days 8 to 16 are low-confidence trend guidance only.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
get_forecast Get forecast ~47
Get the available daily snow, temperature, freezing level and wind-hold risk forecast, up to 10 requested days.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
get_resort_media Get resort media ~75
Get images for a resort that vision-capable assistants can show: nearby webcams with provider credit, a Wikimedia Commons photo with its per-file licence, author and source page, the EM Snow sun and shade teaser where one exists, and the resort page link. No trail-map image is available.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
get_snow_reports Get snow reports ~46
Get recent visible community reports, including whether each came from the website or was relayed by an AI assistant.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
get_webcams Get webcams ~31
Get nearby webcam images and their source links, with the required provider credit.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
mountain_facts Mountain facts ~45
Read mapped OSM terrain inventory, lift fleet, vertical, longest run, carefully matched Wikidata facts, season dates and modelled snow reliability.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
nearby_resorts Nearby resorts ~34
Find nearby resorts from the local EM Snow resort index.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
plan_my_day Plan my day ~103
Build modelled suggested runs in time order from forecast weather, sun, snow and mapped terrain. Only plans days inside the reported winter season; summer lift or bike-park operation does not count as open for skiing. Easy, intermediate and advanced exclude expert, freeride and extreme terrain; only expert permits it. Suggestions are not a connected route or live piste status.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | – |
| level | string | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
route_on_mountain Route on mountain ~175
Route between named pistes, lifts, the resort base or latitude,longitude coordinates using mapped OSM pistes and lifts. Names match accent-insensitively and partially (exact, then prefix, then contained words); a piste or lift split into several connected OSM pieces counts as one. A lift used as from resolves to its top station, where you ski away; a lift used as to resolves to its bottom station, unless coordinates say otherwise. Ambiguous names return candidates. Coordinates more than 5 km from the resort are rejected. Easy, intermediate and advanced avoid terrain above that level; only expert permits expert, freeride and extreme terrain.
| Name | Type | Req | Description |
|---|---|---|---|
| avoid_closed | boolean | – | – |
| from | string | yes | – |
| level | string | – | – |
| resort | string | yes | – |
| to | string | yes | – |
No output schema declared.
No examples provided.
search_resorts Search resorts ~63
Find ski resorts worldwide by name, country or distance. Returns at most 20 matches and does not expose the bulk resort index.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | – |
| limit | integer | – | – |
| near | object | – | – |
| query | string | – | – |
No output schema declared.
No examples provided.
season_recap Season recap ~33
Summarise the most recent completed ski season from the local ERA5 archive first.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
snow_reliability Snow reliability ~34
Get an explainable snow-reliability score from long-run ERA5 snow depth.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
suggest_resort Suggest resort ~69
Suggest a missing resort for human review. This never adds it directly to the resort index.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | yes | – |
| lat | number | yes | – |
| lon | number | yes | – |
| name | string | yes | – |
| notes | string | – | – |
| website | string | – | – |
No output schema declared.
No examples provided.
sun_on_the_mountain Sun on the mountain ~48
Show modelled sun and shade windows for eight slope aspects, with local terrain-horizon shading where DEM coverage exists.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | – |
| resort | string | yes | – |
No output schema declared.
No examples provided.
watch_resort Watch resort ~43
Return a one-tap EM Snow URL where the person can watch a resort and optionally add dates. This tool does not collect email.
| Name | Type | Req | Description |
|---|---|---|---|
| resort | string | yes | – |
No output schema declared.
No examples provided.
where_is_it_snowing Where is it snowing ~41
Rank the freshest recently reported snow from the cached EM Snow home-page ranking.
| Name | Type | Req | Description |
|---|---|---|---|
| hemisphere | string | – | – |
| limit | integer | – | – |
No output schema declared.
No examples provided.
What is the EM Snow MCP server?
EM Snow is an MCP server listed in the public MCP registry as uk.co.extreme-media.snow/em-snow. Ski resort conditions, forecasts, avalanche danger, sun, routes and snow history for 5,000+ resorts. This page covers its hosted endpoint (https://snow.extreme-media.co.uk/mcp).
Is the EM Snow MCP server safe to use?
EM Snow scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the EM Snow MCP server expose?
EM Snow exposes 21 tools: search_resorts, get_conditions, get_forecast, plan_my_day, sun_on_the_mountain, and 16 more. Their descriptions and schemas cost roughly 1,359 tokens of context every time the server is loaded.
Does the EM Snow MCP server require authentication?
No. We connected to EM Snow without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the EM Snow MCP server still maintained?
EM Snow is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.