Currently New Relic supports two versions of the REST API. Version 1 is deprecated and has been replaced with the newer v2. No termination date has been announced. However, no further development or modifications are being made to v1.
Important
Start new projects by referring to Getting started with API v2 and the New Relic REST API v2 examples. Also, begin migrating your v1 scripts to their v2 equivalent.
To use the REST API v1 in any way, your API key is required. Then, from the command line, you can use:
curl -gH "x-api-key:REPLACE_WITH_YOUR_API_KEY" 'ENDPOINT_URL'OR
wget -qO- --header "x-api-key:REPLACE_WITH_YOUR_API_KEY" 'ENDPOINT_URL'