Canal Nav
REMOTE · MCP.CANALNAV.COM · SCANNED AUG 3
Plan canal routes on Great Britain's waterways: lock-aware timing, live closures, boat-fit checks.
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 →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability64
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1731 tokens (~288/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · mcp.canalnav.com
claude mcp add --transport http com-canalnav-canal-nav https://mcp.canalnav.com/mcp
[mcp_servers.com-canalnav-canal-nav] url = "https://mcp.canalnav.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-canalnav-canal-nav": {
"type": "remote",
"url": "https://mcp.canalnav.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-canalnav-canal-nav --url https://mcp.canalnav.com/mcp --transport streamable-http
mcp_servers:
com-canalnav-canal-nav:
url: "https://mcp.canalnav.com/mcp" {
"mcpServers": {
"com-canalnav-canal-nav": {
"type": "http",
"url": "https://mcp.canalnav.com/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.
- 2 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 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
- 31 Jul 26 60
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 3 Aug 2026 · Probed https://mcp.canalnav.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=canalnav.com | CN=WE1,O=Google Trust Services,C=US | 29 Jun 2026 | 27 Sept 2026 | ECDSA 256 | ECDSA-SHA256 | 94d2c660138d370b0e36cd06fdaac95e |
| SANs: canalnav.com, *.canalnav.com | ||||||
| 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 |
DNSSEC insecure
Validation of mcp.canalnav.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| canalnav.com. | 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 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.canalnav.com/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.canalnav.com/mcp | HTTPS enforced | 301 | https://mcp.canalnav.com/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.
find_place Find a place on the waterways ~111
Look up a place name on the British inland waterway network and return matching locations with coordinates (marinas, moorings, water points and other waterside facilities). Use it to disambiguate a place before calling plan_route or plan_round_trip, or to get coordinates for a known spot. Results are waterway locations only; it is not a general geocoder.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Place or facility name to search for, e.g. "Braunston" or "Aston Marina". |
No output schema declared.
No examples provided.
get_closures Get closures and stoppages ~214
Live closure, stoppage and restriction notices for the inland waterways of Great Britain, covering every GB navigation authority: Canal & River Trust, Environment Agency, Scottish Canals, Broads Authority, Bridgewater, Middle Level, River Wey, Basingstoke and more, not just CRT. Search near a place (name or "lat,lon", with an optional radius) or by waterway name (e.g. "Oxford Canal"). Returns active and upcoming notices with dates, the responsible authority, whether each one blocks navigation, and links for detail. Data refreshes from the authorities' published notices, so reopen dates reflect the latest updates.
| Name | Type | Req | Description |
|---|---|---|---|
| place | string | — | A place name or "lat,lon" coordinates to search around. Give this or waterway. |
| radius_km | number | — | Search radius around the place in km. Default 25. |
| waterway | string | — | A waterway name to match notices against (e.g. "Grand Union Canal"). Give this or place. |
No output schema declared.
No examples provided.
plan_round_trip Plan a round trip ~372
Plan return-to-start cruises from a point on the inland waterways of Great Britain, sized to fit a number of days. Returns several options: circular loops where the canal network offers one (canal "rings"), plus out-and-back and fewest-locks alternatives, each with distance, lock count, day-by-day plan and suggested overnight moorings. Timing is lock-aware and closures from every GB navigation authority are flagged on each option. Give boat dimensions to get fit warnings, and routes touching tidal water carry a tidal safety warning. The start can be a place name or "lat,lon" coordinates.
| Name | Type | Req | Description |
|---|---|---|---|
| boat_air_draught | number|string | — | Boat air draught (height above the waterline, for bridges and tunnels). Metres or feet/inches. |
| boat_beam | number|string | — | Boat beam (width). Metres by default (e.g. 2.08), or feet/inches (e.g. "6'10\""). |
| boat_draught | number|string | — | Boat draught (depth below the waterline). Metres or feet/inches. |
| boat_length | number|string | — | Boat length. Metres by default (e.g. 17.4), or a feet/inches string (e.g. "57ft"). |
| cruising_hours_per_day | number | — | Cruising hours per day. Default 6. |
| date | string | — | Start date (YYYY-MM-DD) for closure checking. Defaults to today. |
| days | integer | yes | Number of days the round trip should fit in. |
| lock_minutes | number | — | Minutes to work through one lock. Default 15. |
| start | string | yes | Start (and finish) point: a place name on the waterways or "lat,lon" coordinates. |
No output schema declared.
No examples provided.
plan_route Plan a canal route ~478
Plan a boat journey between two points on the inland waterways of Great Britain (canals and navigable rivers). The route follows the water itself, not roads. It counts every lock and estimates cruising time from realistic boat speed plus time per lock. Live closures and stoppages from every GB navigation authority (Canal & River Trust, Environment Agency, Scottish Canals, Broads Authority and others) are routed around automatically, and when a dated closure blocks the natural line the result compares waiting for it to reopen against taking the detour. Give boat dimensions to get per-waterway fit warnings (too long, too wide, too deep, too tall for a waterway on the route). Routes that cross tidal water carry a tidal safety warning. Places can be names (resolved on the waterway network) or "lat,lon" coordinates. If a name matches several distinct locations the tool returns the candidates instead of guessing; call again with the chosen one.
| Name | Type | Req | Description |
|---|---|---|---|
| boat_air_draught | number|string | — | Boat air draught (height above the waterline, for bridges and tunnels). Metres or feet/inches. |
| boat_beam | number|string | — | Boat beam (width). Metres by default (e.g. 2.08), or feet/inches (e.g. "6'10\""). |
| boat_draught | number|string | — | Boat draught (depth below the waterline). Metres or feet/inches. |
| boat_length | number|string | — | Boat length. Metres by default (e.g. 17.4), or a feet/inches string (e.g. "57ft"). |
| cruising_hours_per_day | number | — | Cruising hours per day, used to split the journey into days with suggested overnight moorings. Default 6. |
| date | string | — | Departure date (YYYY-MM-DD) for closure checking. Defaults to today. |
| from | string | yes | Start point: a place name on the waterways (e.g. "Braunston Marina") or "lat,lon" coordinates. |
| lock_minutes | number | — | Minutes to work through one lock. Default 15. Experienced crews may use 10, single-handers 20 or more. |
| to | string | yes | Destination: a place name or "lat,lon" coordinates. |
No output schema declared.
No examples provided.
search_directory Search the waterways business directory ~145
Search Canal Nav's directory of waterside businesses on the British inland waterways: marinas, chandleries, boat hire, boatyards, pump-out and services, fuel, moorings, surveyors, brokerage, and canalside food and pubs. Filter by free text, category, or proximity to a place. Listings marked unclaimed can be claimed for free by the business owner at https://canalnav.com/.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | — | Directory category to filter by. |
| near | string | — | A place name or "lat,lon" to search around (approx. 15 km). |
| query | string | — | Free-text search over business names and descriptions. |
No output schema declared.
No examples provided.
will_my_boat_fit Will my boat fit a waterway ~269
Check boat dimensions against the published maximum craft dimensions for a named British waterway (length, beam, draught and air draught, from Canal & River Trust published figures covering the full CRT network). Returns a per-dimension verdict quoting the limit. Draught and headroom vary with water level and silting, so treat the answer as advisory. For a whole journey, use plan_route with boat dimensions instead: it checks every waterway along the route.
| Name | Type | Req | Description |
|---|---|---|---|
| boat_air_draught | number|string | — | Boat air draught (height above the waterline, for bridges and tunnels). Metres or feet/inches. |
| boat_beam | number|string | — | Boat beam (width). Metres by default (e.g. 2.08), or feet/inches (e.g. "6'10\""). |
| boat_draught | number|string | — | Boat draught (depth below the waterline). Metres or feet/inches. |
| boat_length | number|string | — | Boat length. Metres by default (e.g. 17.4), or a feet/inches string (e.g. "57ft"). |
| waterway | string | yes | Waterway name, e.g. "Ashby Canal" or "Llangollen Canal". |
No output schema declared.
No examples provided.