We need to run some clean up on the search index that backs the API endpoints, which requires shutting down the /search JSON/XML API
This means that if you have apps that hit URLs like http://marketplace.envato.com/api/edge/search:... you will see HTTP 503 response codes for your requests.
This is required to properly repair the search index after the search outage from last night. Regular site search will be temporarily flipped to use the new elasticsearch backend for this period, and should be unaffected.
Will post again when everything is back up.
Thank you for the heads up!!