API Documentation

Authentication

The tides and bathymetry APIs are open and do not require authentication. The AIS API is free to read without a token; its aisstream.io-compatible stream, publishing, and higher limits use access tokens described in its own reference.

Rate Limits

The tides and bathymetry APIs apply the following limits; the AIS API has its own, listed on its reference page:

• 100 requests per minute per IP address
• 10,000 requests per day per IP address

If you need higher limits for a production application, please contact us.

Error Handling

Errors are returned with appropriate HTTP status codes and a JSON body:

{
  "message": "Invalid parameters",
  "errors": [
    {
      "path": "/latitude",
      "message": "must be between -90 and 90",
      "errorCode": "INVALID_NUMBER"
    }
  ]
}