Usage Guidelines for IPGP Web Services


The web services hosted at the IPGP Data Center ( are open free of charge and must be used with the following limitations:

  • Users should limit usage to no more than 2 concurrent connections to any combination of FDSN web services.
  • Users should limit their clients to no more than 5 connections per second, regardless of the return capability of the service interfaces.

We reserve the right to deny connections when the above limits have been exceeded or if usage exceeds a service's resources.

You are also requested to cite the data you access, following the guidelines in citations and acknowledgments.