TidesAtlas
REMOTE · TIDESATLAS.COM
Worldwide tide times and heights, marine weather, sea temperature, sun and moon for 13,000+ ports.
Available components
Last scanned (2 hours ago)
Scores higher than 55% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Maps and Location
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 Security77
- 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability73
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 917 tokens (~91/item across 10 items; 10 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management7
- Stability observed for 2 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
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.
- 5 Nov 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.
- 4 Nov 26 +7
- Authorization: unverified → partial ▲ security
- Tool “get_tides” rewrote its description, which is the text the model reads security
- Stability: unverified → 0.03 ▲ functional
- 3 Nov 26 62
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 5 Nov 2026 · Probed https://tidesatlas.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=tidesatlas.com | CN=YE2,O=Let's Encrypt,C=US | 24 Sept 2026 | 23 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 62415549bb35da5d12083bde9f9bd4cf06a |
| SANs: tidesatlas.com, www.tidesatlas.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of tidesatlas.com. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| tidesatlas.com. | present | 3704 | 8 | Verified |
| tidesatlas.com. | Verified address RRset verified with the apex keys |
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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://tidesatlas.com/mcp | Verified | 200 | |
| http (plaintext) | http://tidesatlas.com/mcp | HTTPS enforced | 301 | https://tidesatlas.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. 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 →
get_astronomy ~99
Get sun and moon data: sunrise, sunset, dawn, dusk, day length, moon phase, illumination, moonrise, moonset.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | Start date YYYY-MM-DD (default: today). |
| days | integer | – | Number of days, 1-7 (default: 1). |
| lat | number | – | Latitude. |
| lon | number | – | Longitude. |
| port | string | – | Station slug. |
No output schema declared.
No examples provided.
get_conditions ~94
Get unified weather + marine + astronomy data in one call. More efficient than calling each separately.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | Forecast days, 1-7 (default: 3). |
| include | string | – | Comma-separated list: weather,marine,astronomy (default: all three). |
| lat | number | – | Latitude. |
| lon | number | – | Longitude. |
| port | string | – | Station slug. |
No output schema declared.
No examples provided.
get_history ~101
Get historical tide predictions and weather data for past dates. Tides up to 365 days, weather up to 90 days.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Start date in the past, YYYY-MM-DD (required). |
| days | integer | – | Number of days, 1-365 (default: 7). |
| include | string | – | Comma-separated: tides,weather (default: tides). |
| port | string | yes | Station slug (required). |
No output schema declared.
No examples provided.
get_marine ~76
Get ocean and wave forecast (wave height, swell, sea state on Douglas scale). Returns hourly and daily data.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | Forecast days, 1-7 (default: 3). |
| lat | number | – | Latitude. |
| lon | number | – | Longitude. |
| port | string | – | Station slug. |
No output schema declared.
No examples provided.
get_observations ~91
Get real-time sea level observations from REFMAR/SHOM tide gauges (French stations only). Returns 10-minute interval readings.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | Start date YYYY-MM-DD (default: today). |
| days | integer | – | Number of days, 1-7 (default: 1). |
| port | string | yes | Station slug (must be a French REFMAR station). |
No output schema declared.
No examples provided.
get_radar ~56
Get rain radar tile URLs for a location. Returns past frames and short-term nowcast frames for map overlays.
| Name | Type | Req | Description |
|---|---|---|---|
| lat | number | – | Latitude. |
| lon | number | – | Longitude. |
| port | string | – | Station slug. |
No output schema declared.
No examples provided.
get_tides ~207
Get tide predictions (high/low water times and heights) for a port or coordinates. Returns extremes with datetime, height in meters, and type (high/low). Supports 13,000+ stations in 180 countries.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | Start date in YYYY-MM-DD format (default: today). |
| datum | string | – | Vertical datum: LAT, MSL, MLLW, MHW, MLW, MHHW, MTL, HAT (default: native datum of station). |
| days | integer | – | Number of days, 1-14 (default: 1). |
| lat | number | – | Latitude (-90 to 90). Alternative to port — finds the nearest station. |
| lon | number | – | Longitude (-180 to 180). Must be used with lat. |
| port | string | – | Station slug, e.g. "aberdeen" or "san-francisco". Use search_ports to find slugs. |
No output schema declared.
No examples provided.
get_weather ~78
Get weather forecast (temperature, wind, precipitation, UV, conditions) for a port or coordinates. Returns hourly and daily data.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | Forecast days, 1-7 (default: 3). |
| lat | number | – | Latitude. |
| lon | number | – | Longitude. |
| port | string | – | Station slug. |
No output schema declared.
No examples provided.
list_countries ~27
List all 188 countries that have tide stations, with their station counts and ISO codes.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_ports ~88
Search for tide stations by name or country. Returns port name, slug, coordinates, timezone, country.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Filter by country slug, e.g. "united-kingdom" or "france". |
| limit | integer | – | Max results, 1-500 (default: 50). |
| search | string | – | Search by station name (partial match). |
No output schema declared.
No examples provided.
How do I install the TidesAtlas MCP server?
TidesAtlas is a hosted endpoint at https://tidesatlas.com/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 · tidesatlas.com
claude mcp add --transport http com-tidesatlas-tides 'https://tidesatlas.com/mcp'
What is the TidesAtlas MCP server?
TidesAtlas is an MCP server listed in the public MCP registry as com.tidesatlas/tides. Worldwide tide times and heights, marine weather, sea temperature, sun and moon for 13,000+ ports. This page covers its hosted endpoint (https://tidesatlas.com/mcp).
Is the TidesAtlas MCP server safe to use?
TidesAtlas 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 TidesAtlas MCP server expose?
TidesAtlas exposes 10 tools: get_tides, search_ports, list_countries, get_weather, get_marine, and 5 more. Their descriptions and schemas cost roughly 917 tokens of context every time the server is loaded.
Does the TidesAtlas MCP server require authentication?
No. We connected to TidesAtlas without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the TidesAtlas MCP server still maintained?
TidesAtlas is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.