# Perigee Tides

> Live NOAA tide charts, high/low tide predictions, currents, water levels, marine weather, and astronomy (sun & moon) for 3,000+ coastal stations across the US — Eastport to Pago Pago. Free to explore, with an open REST API and a hosted MCP server for AI agents.

Perigee (https://perigeetides.com) serves data from NOAA CO-OPS (tides, currents, water levels, station metadata), the National Weather Service (wind and marine forecasts), and local astronomical computation (moon phase, sun times, twilights). Observations update every six minutes. Astronomy works for any point on Earth.

## Pages

- [Home](https://perigeetides.com/): Find the tide gauge nearest you and see what the water is doing right now.
- [Explore](https://perigeetides.com/explore): Interactive map of every NOAA station, with search and type filters.
- [Tides by state](https://perigeetides.com/tides): Directory of every station grouped by state. URL pattern: https://perigeetides.com/tides/{state-name} (example: https://perigeetides.com/tides/florida).
- [Station pages](https://perigeetides.com/tides/connecticut/bridgeport-8467150): Today's high and low tide times, a 7-day tide table, live tide chart, conditions, wind forecast, datums, sky data, and a tide FAQ for one station. URL pattern: https://perigeetides.com/tides/{state-name}/{place-slug}-{noaa_station_id}. Legacy https://perigeetides.com/stations/{id} URLs redirect here.
- [Annual tide tables](https://perigeetides.com/tides/connecticut/bridgeport-8467150/2026): Full-year monthly high/low tide calendar per station, with king tide dates and the minus tide calendar. URL pattern: {station-url}/{year}.
- [King tide calendars](https://perigeetides.com/king-tides): Dates, peak times, and heights of the year's highest tides, by state. URL pattern: https://perigeetides.com/king-tides/{state-name}/{year}.
- [Fishing pages](https://perigeetides.com/fishing/connecticut/bridgeport-8467150): Best fishing times per station — bite windows around each tide change for 7 days with moon phase. URL pattern: https://perigeetides.com/fishing/{state-name}/{place-slug}-{id}.
- [Astronomy per station](https://perigeetides.com/astronomy/connecticut/bridgeport-8467150): Sunrise, sunset, golden hour, moonrise/set, and moon phase with a 14-day calendar. URL pattern: https://perigeetides.com/astronomy/{state-name}/{place-slug}-{id}.
- [Astronomy](https://perigeetides.com/astronomy): Moon phase, sunrise/sunset, and a 30-day moon calendar for any location.
- [Guides](https://perigeetides.com/guides): Explainers on how tide predictions work, reading tide charts, spring/neap/king tides, minus tides and tidepooling, why tides differ every day, and tidal datums.
- [About](https://perigeetides.com/about): Who runs Perigee, where the data comes from, and how predictions are computed.
- [Developers](https://perigeetides.com/developers): REST API and MCP server documentation with copy-paste examples.
- [Pricing](https://perigeetides.com/pricing): Free to browse; API tiers are anonymous (30 req/min), free key, and Pro.

## REST API

Base URL: https://perigeetides.com/api/v1 — JSON, no key required at 30 req/min (free key raises limits).

- [GET /api/v1/stations](https://perigeetides.com/api/v1/stations): Station directory. Params: q (name search), state, type, limit.
- [GET /api/v1/stations/nearest](https://perigeetides.com/api/v1/stations/nearest?lat=41.17&lon=-73.18): Nearest stations to a lat/lon.
- GET /api/v1/stations/{id}: Station overview with datums, products, and flood levels.
- GET /api/v1/stations/{id}/predictions: Tide predictions (interval=hilo or 6-minute curve).
- GET /api/v1/stations/{id}/water-levels: Observed six-minute water levels.
- GET /api/v1/stations/{id}/conditions: Latest wind, water level, and temperature readings.
- GET /api/v1/stations/{id}/forecast: NWS wind + coastal waters forecast for the station.
- [GET /api/v1/astronomy](https://perigeetides.com/api/v1/astronomy?lat=41.17&lon=-73.18): Moon phase and sun times for any point on Earth.

## MCP server

Hosted Model Context Protocol server exposing NOAA tides, currents, water levels, station search, and astronomy as tools (noaa_get_tide_predictions, noaa_find_nearest_stations, astro_get_moon_phase, and ~20 more).

- Endpoint (API key or anonymous): https://perigeetides.com/mcp
- Endpoint (OAuth, for clients like claude.ai): https://perigeetides.com/pro/mcp
- [Setup instructions](https://perigeetides.com/developers): One-click installs for Claude, Cursor, and VS Code.

## Contact

- Maintainer: Cardin Labs (ryandcardin@gmail.com)