Globus SDK Configuration

The behaviors of the SDK can be controlled either through environment variables, or by passing parameters to clients and other objects.


SDK v1.x and v2.x supported the use of /etc/globus.cfg and ~/.globus.cfg to set certain values. This feature was removed in v3.0 in favor of new environment variables for setting these values.

Environment Variables

Each of these environment variables will be read automatically by the SDK.

Environment variables have lower precedence than explicit values set in the interpreter. If GLOBUS_SDK_VERIFY_SSL="false" is set and a client is created with verify_ssl=True, the resulting client will have SSL verification turned on.


Used to disable SSL verification, typically to handle SSL-intercepting firewalls. By default, all connections to servers are verified. Set GLOBUS_SDK_VERIFY_SSL="false" to disable verification.


Adjust the timeout when HTTP requests are made. By default, requests have a 60 second read timeout – for slower responses, try setting GLOBUS_SDK_HTTP_TIMEOUT=120


The name of the environment to use. Set GLOBUS_SDK_ENVIRONMENT="preview" to use the Globus Preview environment.


Override the URL used for a given service. The suffix of this environment variable must match the service name string used by the SDK in all caps (SEARCH, TRANSFER, etc). For example, set GLOBUS_SDK_SERVICE_URL_TRANSFER="" to direct the SDK to use a custom URL when contacting the Globus Transfer service.