JUMP TOCmercury ApiGetting Started With Your APIAPI KeyList ManagementCreate Mailing ListpostCreate Suppression ListpostArchive ListpostActivate ListpostUpdate ListpostQuery ListpostContact ManagementAdd ContactpostAdd PhonepostUpdate ContactpostUpdate Contact StatuspostUploadpostQuery DetailspostGet Contact StatuspostAttribute ManagementAdd AttributepostEnable AttributepostDisable AttributepostQuery AllpostSegment ManagementGenerate SegmentpostQuery SegmentpostMessage ManagementAdd messagepostUpdate messagepostTest messagepostSend messagepostSchedule messagepostReports ManagementMessage DetailspostQuery Send DatapostQuery Delivered DatapostQuery Bounced DatapostQuery Opened DatapostQuery Clicked DatapostQuery Spam DatapostQuery Unsubscribe DatapostQuery List Data - OpenerspostQuery List Data - ClickerspostQuery List Data - BouncepostQuery List Data - SpampostQuery List Data - Sent Emails (Based on Date range)postQuery List Data - Delivered Emails (Based on Date range)postQuery List Data - Unsubscribe Emails (Based on Date range)postTrigger ManagementFire TriggerpostDynamic Template TriggerpostAttachment TriggerpostTRIGGER MANAGEMENT V2Fire Trigger V2postDynamic Template Trigger V2postAttachment Trigger V2postTrigger ReportTrigger ID & Date rangepostList ID & Unique IDpostDate & UniqueIDpostEvent NotificationsSMS ManagementTrigger SMSpostPrepaid Account ManagementEmail Credit CountpostWeb AnalyticsUploading Product Feed [XML Format only]postUpdate Product AvailabilitypostVerify - List CleanerAccount status checkpostSingle Email VerificationpostBulk Email VerificationpostAttachment Trigger V2Getting Started With Your APIPowered by Add Attributepost https://api.cmercury.com/api/Attribute/AddUse this API to add new attribute to a list.