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API Name Category Date
Facebook
Social 08.16.2006
Twilio
Telephony 01.09.2009
Google App Engine
Tools 12.05.2008
Google Analytics
Analytics 04.21.2009
PayPal
Payments 09.04.2005
SendGrid
Email 08.11.2009
MailChimp
Email 12.21.2007
Google Gmail OAuth
Email 03.31.2010
GitHub
Tools 02.23.2009
Yahoo Mail
Email 03.28.2007
Klout
Analytics 04.14.2009
Shopify
eCommerce 01.05.2010
Eventbrite
Events 08.02.2008
RapLeaf
Email 08.13.2006
Stripe
Payments 10.12.2011
Amazon SES
Email 01.25.2011
TwitterCounter
Social 01.17.2009
Google Apps Email Migration
Email 11.18.2007
Instagram Real-time
Photos 02.24.2011
Topsy
Social 08.31.2010
SEOmoz
Search 07.20.2009
Kynetx
Real Time 12.13.2010
Zendesk
Support 04.20.2009
ConstantContact
Email 12.22.2008
Semantria
Tools 02.06.2012
Google Affiliate Network
Advertising 12.16.2011
Context.IO
Email 03.18.2011
awe.sm
Social 01.10.2011
New Relic
Analytics 12.16.2010
Mailgun
Email 11.04.2010
Viralheat
Social 11.13.2009
Google Email Settings
Email 10.16.2008
IMified
Chat 07.08.2007
Interfax
Fax 12.06.2005
SERPs SEO & Rankings
SEO 11.28.2012
LaunchBit
Advertising 09.14.2012
Mandrill
Email 04.25.2012
Infogroup Infoconnect
Database 03.22.2012
LiveConnect
Calendars 03.21.2012
PeekYou Social Analytics
Social 11.22.2011
Baidu
Advertising 11.08.2011
Atlassian Bitbucket
Tools 11.03.2011
Ambassador
Social 10.19.2011
FanBridge
Advertising 09.09.2011
Extractiv
Semantics 01.27.2011
Scalr
Hosting 11.30.2010
Data24-7
Email 10.01.2010
Postmark
Email 08.10.2010
Mixpanel
Analytics 01.07.2010
AddThis Analytics
Social 12.04.2009
18amail
Email 12.01.2009
Printfection
eCommerce 09.27.2009
IIG Alerts
Messaging 10.15.2008
Sendible
Messaging 08.20.2008
OpenX
Advertising 07.18.2008
Campaign Monitor
Email 07.18.2008
Assembla
Project Management 02.10.2008
Cownt Us
Analytics 12.09.2007
WhatCounts
Email 03.10.2007
Google Provisioning
Enterprise 02.23.2007
InboxApp
Email 07.09.2014
Soshio
Analytics 07.07.2014
Cara
Demographics 07.07.2014
Noldus FaceReader
Recognition 07.06.2014
ThinksUp
Analytics 07.05.2014
EmoVu
Predictions 07.03.2014
Yo Developers
Notifications 06.27.2014
Gmail
Email 06.26.2014
Instrumental
Monitoring 06.26.2014
Retain.cc
Customer Relationship Management 06.14.2014
Rate Checker
Hotels 06.10.2014
SocialAdr
SEO 06.08.2014
FeedPress
Feeds 06.07.2014
Experian Data Quality Email Validation
Email 06.03.2014
Tru Optik Tru
Analytics 06.02.2014
Lettr
Email 05.30.2014
ClickSend SMS
Marketing 05.21.2014
RiteTag
Social 05.16.2014
AccuZIP Toolkit
Mail 05.15.2014
ConvertAPI Email2Pdf
Conversions 05.08.2014
Soccermetrics Connect
Sports 05.06.2014
Internet Archive Wayback CDX Server
Analytics 04.26.2014
BYU Exchange
Email 04.24.2014
AlchemyAPI Taxonomy
Tools 04.22.2014
MailTracker
Email 04.14.2014
BuzzSumo
Media 04.12.2014
Lleida ENUM
Telephony 04.03.2014
Standard Analytics IO
Science 04.03.2014
VerticalResponse REST
Email 03.25.2014
Cilenis
Tools 03.24.2014
Qualaroo Reporting
Enterprise 03.24.2014
ESA Semantic Relatedness
Tools 03.21.2014
Brandwatch
Social 03.20.2014
Campayn
Email 03.19.2014
Email YoYo Verification
Email 03.09.2014
AdStage Platform
Advertising 03.05.2014
Zync
Messaging 03.01.2014
MireZone SMS
Messaging 03.01.2014
RelateIQ
Project Management 02.28.2014
360 Campaigner
B2B 02.27.2014