Directory / api.geoprimitives.dev
Give it a latitude, a longitude and a radius in metres and it answers with every charted underwater rock, obstruction and wreck inside that circle, nearest first, each with its charted depth, its water level effect, its name where the chart names it, and the geodesic distance from your position. Parameters go in the query string: this is a GET, there is no body. NOT FOR NAVIGATION, stated first because it is a condition of using the source. Derived from NOAA Electronic Navigational Charts and redistributed; not an official NOAA ENC, and it does not meet federal chart carriage regulations under 33 CFR 164 or SOLAS chapter V. Every response repeats this under `disclaimer`. NOAA and NOAA ENC are registered trademarks of NOAA, which does not endorse this service. COVERAGE is the same 65 cells as GET /v1/marine/depth: bands 3 to 5 over Sitka Sound; Kasaan Bay and Clarence Strait; Metlakatla, Ketchikan and Revillagigedo Channel; Juneau, Gastineau Channel and Lynn Canal; and Cordova with eastern Prince William Sound. Not statewide and not the whole coast. The check reads the coordinate, so it happens after payment; a position off the charts is refused with outside_coverage, which does not
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://api.geoprimitives.dev/v1/marine/hazards' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://api.geoprimitives.dev/v1/marine/hazards'
Endpoint: https://api.geoprimitives.dev/v1/marine/hazards. Operated by api.geoprimitives.dev, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
Give it a latitude and longitude and it answers with the ground elevation there in metres above NAVD88, read from the USGS 3D Elevation Program seamless DEM. Pa…
Validate GeoJSON against RFC 7946 and get back a structured list of problems, not a bare boolean. Checks structure, coordinate range, ring closure, ring winding…
Give it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing th…
Give it a longitude and latitude and it answers with the IANA timezone identifier (America/New_York), the UTC offset in force there right now, whether daylight …
Give it a longitude and latitude inside the United States and it answers with the Census FIPS codes for that point: the 2-digit state code, the 5-digit county G…