Web API
Use the Wolfram Data Drop RESTful API to add an entry to a databin:
https://datadrop.wolframcloud.com/api/v1.0/Add?bin=id&key1=value1&...
(You do not need to be logged in as long as the databin is publicly writable.)
(Raw input values automatically converted using data semantics)
Data can be given either through GET requests in the query string, or in the body of a POST request. (Value strings can be URL-encoded if necessary, e.g. using URLEncode.)
Data not organized in key-value pairs can be specified using data=....
(Use “timestamp” = value etc. to override certain default metadata.)