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Hi @salman.jaffer, @Jayden.Zhang, @patrick.ma.
See the section on Security, in the API User Guide.
Why OpenCalais API break on this message unless substring " Let's hear from in fact." is removed?
Has anyone used calais tagging in R?
Curl vs openCalais demo inconsistency/bug?
inconsistent result from Open Calais Demo and free-tier API
Extracting relationships alongwith Entities using Opencalais