Send email from your app. The world’s most powerful email delivery solution is now yours in a developer-friendly, quick to set up cloud service.

With Pipedrive CRM designed for salespeople, by salespeople, you’re able to do more to grow your business. Easily build integrations with our API and reach over 90k companies in the Pipedrive Marketplace. Pipedrive is a sales CRM with an intuitive RESTful API. You can use our API to create public or private apps using OAuth and integrations via API token. Public apps and integrations work directly with Pipedrive and are available in the Pipedrive's Marketplace.

Email marketing, ads, landing pages, and CRM tools to grow your business on your terms. Now use MailChimp API to integrate all functionalities of MailChimp into your custom applications.

Optimizely is the world's leading experimentation platform, empowering marketing and product teams to test, learn and deploy winning digital experiences, every time. Improve your product quality and velocity with feature management. Drive measurable impact with product experimentation. Optimize the experience across any platform including websites, backend code, mobile and conversational apps. Target your messaging, personalize your campaigns, and ultimately drive substantial growth for your business. Powerful, easy to use solutions, to test what messages, imagery, and offers help increase conversion, retention, and lifetime value.

Provides programmatic access to various advertising technologies. You should consider using the Bing Ads API if your business model resembles: 1) You are a direct advertiser managing your own ad spend and you want to integrate our PPC marketing with your internal inventory management or conversion tracking systems. 2) You are a tools vendor developing advertising management solutions for advertisers or agencies. 3) You are an advertising agency and manage ad campaigns for many clients. 4) You are an aggregator and want to build Bing Ads API applications to manage the campaigns of your advertising clients.

Manage ads and campaigns using the Facebook API. Marketing APIs are a collection of Graph API endpoints that can be used to help you advertise on Facebook. To get started with advertising on Facebook, we recommend you learn about Facebook's Ad Campaign Structure, to understand the objects you are working with and how they relate to each other. The Marketing API is an HTTP-based API that you can use to programmatically query data, create and manage ads, and perform a wide variety of other tasks.

Email Service. Set up your email integration in no time, and start A/B testing, scheduling, and tracking your sends via our send email api. Whether you need to send 10 emails or 10 million, our email delivery infrastructure scales with you.