Fusio!

Apigee is a free tools platform for developers and API providers to debug, test, protect and get analytics on APIs.

WSO2 provides the only 100% open source enterprise platform that helps to build, integrate, analyse and manage your APIs, applications, and Web services on-premises, in the cloud and on mobile devices.

Bluemix is an open-standards, cloud-based platform for building, managing, and running apps of all types, such as web, mobile, big data, and smart devices. Capabilities include Java, mobile back-end development, and application monitoring, as well as features from ecosystem partners and open source—all provided as-a-service in the cloud.

APIBond is a service that acts as a proxy where you can configure an existing API. One problem with the existing APIs in the market is the lack of customization. Eg. Twitter API calls returns the same response to everyone. Developers, API evangelists and business people can use APIbond.com to transform and validate any API response without any coding required. It also acts as a management tool where you can secure, scale and analyze any API call.

Tyk Cloud is a full-featured API management platform based around the open source Tyk API gateway, that means you get all the features of the open source version without any of the integration and implementation headaches.

3scale provides an out of the box cloud API management platform and infrastructure for developers, and companies to securely open, control, manage, operate and monetize their API to third parties (e.g. developers, business partners, etc.).

Build APIs RapidlyQuickly define a new API and start building your endpoints in seconds. With our cloud offering you will immediately have a publicly available host serving up your API responses. Start by mocking your endpoints or jump right into connecting to other sources!

Mashery, the Leader in API Management, is the place for API-based business creation. Our guiding principles are trust, collaboration, and presence, in service of rapid, value-based business creation.