Vesselfinder Rate Limits

VesselFinder uses a credit-based quota model rather than per-second rate limiting on the AIS API. Each call deducts credits proportional to the requested datasets and the position source (terrestrial vs. satellite). The Container Tracking API enforces a per-container subscription quota and queues asynchronous requests with a recommended minimum poll interval of 60 seconds. Public, exact RPS/RPM limits are not published by VesselFinder; the limits below capture the documented quota model and the asynchronous polling guidance.