Our API directory now includes 199 email APIs. The newest is the Uptime Robot API. The most popular, in terms of mashups, is the SendGrid API. We list 10 SendGrid mashups. Below you’ll find some more stats from the directory, including the entire list of email APIs.
In terms of the technical details, REST and XML lead the way. There are 115 email REST APIs and 55 email SOAP APIs. Our directory lists 138 email XML APIs and 80 email JSON APIs.
The most common tags within real estate are 78 marketing email APIs, 21 SMS email APIs and 16 social email APIs.
On the mashup side, we list 46 email mashups. We named SkaFlash as mashup of the day in February.
For reference, here is a list of all 199 email APIs.
18amail API: Email marketing service
ActiveCampaign API: Email marketing service
AddressTwo API: Small business CRM service
Adknowledge API: Online advertising and marketing service
AdStack API: Advertising optimization service
Amazon SES API: Email sending service
AOL Open Mail API: Email services
APInbox API: Incoming emails to web service
AppShore API: Small business CRM service
ArchiDev Validator API: Email and URL validation tool
AWeber Email Marketing API: Email Marketing Service
Benchmarkemail API: Email Marketing API
BlinkCampaign API: Social Media and Email Marketing platform
Block Disposable Email API: Detect spam email service
BrandMyMail API: Email and social media integration platform
BriteVerify API: Realtime email data verification
Bronto API: Email marketing service
CakeEngine API: Email Marketing Service
CakeMail API: Email marketing service
Cambridge Lookup/Ibis Web Service API: Online Contact Retrieval Service
Campaign Monitor API: Email List and Campaign management service
CampaignCog API: Email marketing campaign service
Carrier Pigeon API: E-mail marketing service
CDYNE Email Verification API: Email verification service
CleverReach API: Email marketing and delivery service
Click2mail API: web-based email service
Clickatell SMTP API: SMS messaging services via SMTP
Coinapult API: Send bitcoins via SMS or e-mail
ConstantContact API: Email marketing service
Contactology API: Best Email Marketing API
Context.IO API: Email inbox as data source service
Createsend API: E-mail newsletter service
Critsend API: Email sending and receiving service
cvent API: Event communication and online survey service
Data24-7 API: SMS messaging / carrier / email / cnam lookup service
Data8 Email Validation API: Email validation service
DEA Filter API: Spam and email filter
DeliveryWatch API: European email delivery tracking service
Dialect Premailer API: HTML email preparation service
Direct Mail Manager API: Direct mail marketing service
Disposable E-Mail Address API: Trash mail service
DokDok API: Email Attachment Management Service
Easy Antispam API: Email spam services
eCoComa Email API: E-mail receiving and validation services
eCoComa Marketing API: Online marketing service
Elastic Email API: Cloud email delivery service
Email Address Validator API: Email address validation service
Email Checker API: Email address validation service
Email Data Source API: Email marketing campaign management
Email Yak API: Web based email API
Email2HTTP API: Email delivery services
EmailBrain API: Email marketing campaign management service
EmailDirect API: Email marketing campaign management service
Emailloop API: Email marketing service
EmailManager API: Email marketing and CRM synchronization system
EmailValidate API: Email address validation service
Emailvision Campaign Commander API: Email marketing service
eMarketeer API: Marketing campaign tracking service
Emma API: Email marketing service
ExactTarget API: Email delivery services
Fax Desk API: Online faxing service
FeedBlitz API: Blogs by email service
Fiesta API: Group email and mailing list service
Fliptop API: Social media profile service
Fractal API: HTML email validation and fixing service
FraudLabs MailBox Validator API: Email address validation service
FuseMail API: Email hosting service
Futuremail API: Email Scheduling and Queuing Service
GetResponse API: Email marketing service
Google Apps Email Migration API: Migrate existing email systems to Google Apps
Google Apps Profiles Data API: Update and retrieve Google Apps profiles
Google Email Settings API: Allows administration of Google Apps email accounts
Google Gmail OAuth API: EMail service
Google Provisioning API: User provisioning for Google Apps
GraphicMail API: Email newsletter service
GraphicMail API: Online email marketing service
Guerrilla Mail API: Temporary Email Service
iContact API: Email marketing service
IIG Alerts API: Voice, SMS and Email messaging
IMG to CSS API: Image files to CSS converter
Inbox25 API: Email marketing campaign management service
InboxFever API: Email enhancement service
Industry Mailout MyMailout API: Email marketing and delivery service
Informz API: Email marketing service
Innoport FAX API: Fax services
IntelliContact API: Email marketing service
Interfax API: Fax services
Jango SMTP Event API: Transactional email service
JangoMail API: Bulk email service
LeadsMob API: Mobile SMS and email marketing service
leadsNyou Email Marketing API: Email Marketing Service
ListiMonkey API: Twitter list email delivery application
Little Green Plane API: U.K. mail marketing campaign management service
LiveConnect API: Microsoft services connection platform
LuxSci API: Email hosting/archiving & filesharing service
Lyris HQ Email API: Email marketing service
Mad Mimi Mailer API: Mass email marketing tool
Mail Monitor API: Email marketing campaign management
Mail.Ru API: Social Mail Application Service
mail2 API: Email marketing service
Mailbuild API: Email forms and templates service
MailChimp API: Email List and Campaign management service
MailerLite API: Email marketing service
Mailgun API: Integrate email mailboxes into apps
Mailigen API: E-mail marketing service
Mailing Report API: Email Analysis Service
Mailjet API: Cloud hosted email platform
Mailtrust API: Email hosting service
Mailup API: Broadcast email service
mailVU API: Video platform to record or distribute content
Mandrill API: Email and email template service
Message Faces API: Display sender portraits in email inbox
MessageGears API: Cloud email delivery service
MESSAGEmanager API: SMS and email message monitoring service
messagepub API: Multichannel messaging service
Mirkolofio Mailinator API: Email service
Monoloop API: Social profile and communication service
Montastic API: Website and server monitoring service
Movable Ink API: Live email content service
Murrion Software Track Email Opens API: Email marketing campaign tracking service
MXSave API: Email backup and recovery service
MyNewsletterBuilder API: Email marketing and delivery service
Net Atlantic API: Email marketing service; list and campaign management; bulk email sender; mass email services
Ongage API: Email marketing platform
Orange Email API: Email service
PGiConnect API: Email, messaging, and conferencing services
PlanningAlerts API: Alerts service for UK local planning alerts
Popfax API: Internet fax service
PostageApp API: Email management service
Postcode Anywhere Email Validation API: Email validation service
Posterous API: Content sharing service
Postmark API: Email management service
Postmark Spamcheck API: Email spam filtering service
PowerInbox API: Email application platform
Publicaster API: Email marketing management
Push Channels API: Real-time push service
Rackspace Email API: Email hosting service
Rainmaker API: Get Social Data for Email Contacts
RapLeaf Utilities API: Data normalization and deduction tool
Rapportive API: Contact information add-on for email
Red Condor Provisioning API: Message Assurance Gateway Administration and Configuration Tool
RestFul Web Services Email Validation API: E-mail address validation service
Rocket Dispatch API: Mass messaging service
Royal Mail E*Pro API: Online docketing service
RPost API: Registered email services
Sailthru API: Customized communication service
Sapo Mail API: Email management service
SendGrid API: Cloud based email service
SendGrid Customer Subuser API: Email user management service
SendGrid Event API: Email analytics service
SendGrid Newsletter API: Newsletter management service
SendGrid Parse API: Email parsing and posting service
SendGrid Reseller API: Customer management service
SendGrid SMTP API: Custom email handling service
Sendible API: Social Media Management Service
Sendinc REST API: Email encryption services
Sendinc SMTP API: Email encryption services
SendLabs API: Email marketing service
Sendloop API: Email marketing service
ServerCyde API: Web application building service
ServiceObjects DOTS Email Validation API: Email validation service
Shareaholic API: Social link-sharing service
Shortmail API: Length limited email service
Signal API: Interactive mobile and email marketing platform
Silentale API: Consolidate contacts and messages in a personal archive
Silverpop API: Marketing automation service
SmarterTools SmarterMail API: Enterprise email managment service
SmartSource API: Email delivery services
SocketLabs Email On Demand API: Hosted on demand email service
SoundBite API: Unified messaging service for voice, text, and email
SpamOn API: Disposable email address service
StesCodes Address Book Importer API: Mail Address Book Grabber
StesCodes Contact Grabber API: Address book data extraction service
StoreMail API: E-mail marketing service
StreamSend API: Email marketing service
StrikeIron Email Verification API: Email verification service
SubscriberMail API: Email marketing service
SupportBee API: Customer service and support service
SupportBreeze API: Support email tracking service
Taskforce API: Service that converts emails to tasks
TEC Mailing API: Bulk email data validation service
TekGuard Product Info API: E-mail security product information service
Topica API: Email marketing service
Toutapp API: Email template and campaign service
Trumpia API: Web-based marketing service
UCRUX API: Email Marketing Software Service
Undisposable API: Collaborative protection against disposable email
Unified eMail API: Email management service
Uptime Robot API: Website monitoring service
VerticalResponse API: Email service provider
ViaPost API: Send physical mail from the Internet
WBP Systems Heap CRM API: CRM software
Webmail.us API: Email hosting service
WhatCounts API: Email management services
WriteThat.Name API: Contact updating service
XWebEmailValidation API: Email address validation service
Yahoo Mail API: Web based email system
Yahoo Mail Applications API: Platform for email extensions
YesMail API: Email marketing campaign service
