NOAA Coastal Tide Research
LiveInspect a coastal station. Keep datum and time with its predicted tides.
Inspect an exact NOAA CO-OPS coastal station and research predicted high/low tide events over an explicit bounded date window. Heights retain source decimal strings, units and MLLW datum; event times are explicitly GMT.
Connect / 2 tools
Server URL
https://toolcargo.com/mcp/noaa-tidesClaude Code
claude mcp add --transport http --scope user toolcargo-noaa-tides https://toolcargo.com/mcp/noaa-tides \
--header "Authorization: Bearer YOUR_API_KEY"Create a key in your dashboard. Other clients: setup guides.
What it helps you do
- Exact coastal station metadata
- Bounded predicted high/low tides
- Explicit datum, units and GMT times
Built for: Research agents comparing coastal tide-table windows and station context.
Example requests
Research tide-table windows at San Francisco
“Inspect NOAA station 9414290, then retrieve predicted high/low tides for 2026-10-03 through 2026-10-04 in metric units. Preserve MLLW datum, GMT times and decimal heights; cite NOAA/NOS/CO-OPS. Explain these are predictions rather than observed water levels or safe navigation guidance.”
Source-linked predicted tide events with station identity, datum and unit context.
Tools
| Tool | What it does | Access |
|---|---|---|
noaa_tide_stationInspect an exact coastal station | Inspect one exact seven-digit NOAA CO-OPS station ID: source identity, location, tidal/Great Lakes flags and timezone context. The source forecast flag is not tide-prediction availability. No linked resource fetch. One shared-plan call. | Read-only |
noaa_tide_predictionsRead predicted high and low tides | Read up to seven inclusive explicit calendar days of high/low tide predictions at one exact NOAA station. Fixed MLLW datum and GMT times, metric or English heights preserved as decimal strings. Up to ten events per explicit local page, offset 0–100. Not observations, storm surge or navigation guidance. One shared-plan call. | Read-only |
Requirements
- • Activate Site Audit free and use ToolCargo OAuth or a scoped API key. NOAA’s public data has no provider fee or API credential requirement; ToolCargo shared-plan limits still apply.
Limitations
- • Exact seven-digit coastal station IDs only; no geocoding, global tide coverage, station discovery or tidal-current records. Metadata flags do not independently prove prediction availability. Great Lakes stations do not provide tide predictions.
- • Predictions use fixed Mean Lower Low Water (MLLW), GMT and high/low interval. Metric heights are metres; English heights are feet. MLLW is not a universal elevation reference. Source timezone abbreviations are not converted into inferred IANA zones.
- • Explicit date windows of one to seven inclusive days; at most ten events per local page, offset 0–100. Each page refetches a changing bounded window, not a pinned snapshot. Empty or missing values remain unknown rather than zero.
- • Prediction responses do not echo station, datum, units or timezone; provenance follows exact reconstructed request parameters. Source generation/update time and revision are unavailable. Metadata and predictions are separate source requests.
- • Independent provider lease, at most one upstream fetch per operation, completion spacing of at least 1.1 seconds, respected source cooldowns, 35-second operation budget, 15-second response timeout and 2 MiB response cap. No automatic retries, redirects, cached/stale results, observations, alerts, storm-surge forecasts or navigation guarantees.
- • Source: NOAA/NOS/CO-OPS. NOAA requests attribution for redistributed material; exceptions to public-domain reuse may be annotated at source. ToolCargo selects and projects metadata without NOAA affiliation or endorsement.
Supported clients
“Tested” means we connected that client to this endpoint and ran a tool call ourselves. Recorded client-specific tests currently cover Site Audit. Other connectors use the documented setup until tested in that client.
| Claude Code | API key header | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
| Claude (claude.ai) | OAuth sign-in | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
| Cursor | API key header | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
| VS Code (Copilot agent mode) | API key header | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
| ChatGPT (developer mode) | OAuth sign-in | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
| MCP Inspector | API key header | Documented, not yet tested | This endpoint has not yet been tested in this client. See the setup guide. |
Practical workflows
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Pricing
Included with Site Audit. Each successful station lookup or prediction page uses one shared-plan call. NOAA’s public data API adds no provider fee.
Free
$0Try hosted tools with a shared monthly allowance.
50 shared calls/month
Pro
$12/moProposed larger shared allowance; see checkout status on the pricing page.
2,000 shared calls/month
Proposed test price. See the pricing page for checkout status.