NDBC 44027
Neptun covers NDBC 44027 (United States) through the NOAA NDBC network. One GET request returns its readings as JSON — in the same shape as every other network Neptun serves, so you write the parsing once.
Source: NOAA NDBC · Position: 44.2840, -67.3010
Request
curl -H "Authorization: Bearer mapi_YOUR_KEY" \
"https://neptun.marine-api.com/v1/levels?lat=44.2840&lon=-67.3010&radius=5"