get https://api.apollo.io/api/v1/contacts/
Use the View a Contact endpoint to retrieve details for an existing contact in your team's Apollo database. In Apollo terminology, a contact is a person that your team has explicitly added to your database. A contact will have their data enriched in some way, such as accessing an email address or a phone number.
This endpoint requires a master API key. If you attempt to call the endpoint without a master key, you will receive a 403 response. Refer to Create API Keys to learn how to create a master API key.