OEC Time Zone

The simple OEC Time Zone API accepts a time zone as an input and returns the corresponding local time. The zone can be abbreviated (i.e. PST, EST) or spelled out in full (i.e. Eastern Standard Time). Subscribers to the API are able to return 5 calls/minute with limit of 100 calls/week. Increased API limits require administrator approval.

SentlyPlus

SentlyPlus API allows developers to use Client Credentials Grant flow of the OAuth2 specification as the authentication method. Consumers will be given access upon entering their key or secret code which would have been entered and assigned as a set of credentials by the developers.