The Content API uses API Keys to authenticate requests. All API requests must be made over https.
Follow these steps to obtain an API key:
API Key Security
Please safeguard your access key. To include it with each request, set it as the value of the "key" query parameter. If you need to make API calls from client code, be aware this may expose your key to other scripts and browser extensions on the client.
Tripadvisor reserves the right to revoke an access key at any time and issue a new one if a key has leaked or is being misused.