3scale

RapidAPI is the worlds largest API marketplace with over 10,000 APIs available. Developers can find, connect, and manage all of their API connections through a single platform. As an API Provider, you can market, manage, and monetize your API on the world’s largest API marketplace, instantly exposing it to 1 million developers.

Kong is a scalable, open source API Layer (also known as an API Gateway, or API Middleware). Kong controls layer 4 and 7 traffic and is extended through Plugins, which provide extra functionality and services beyond the core platform.

ProgrammableWeb is more than a directory and community, it's programmable. Our "API for APIs" gives you a simple and structured way to access the powerful registry and repository capabilities of PW. Use your favorite language to search and retrieve APIs, mashups, and other data from our catalog. We've got samples in PHP, Java, .NET and JavaScript to get you started.

It provides an easy way for API/service providers to use a web UI to define service contracts for their APIs, apply these contracts across multiple APIs, and control role-based user access and API versioning.

Sign In and discover new APIs from our open data commons of RESTful APIs. Mashery's API management offerings include strategic consulting & developer support to help you build your business.

CloudRail is an API Integration Solution which allows you to integrate SaaS services via a unified API. Moreover it keeps your integrations up-to-date, even if a provider changes their API. Categories are eg Social, Cloud Storage, Payment..

It is an open source API management platform which helps to build and manage REST APIs. It provides all tools to quickly build an API from different data sources yet it is possible to create complete customized responses.

APISpark lets you create, host, manage and use web APIs in a flash. Using the Restlet Framework at its core, APISpark radically simplifies the web API experience, the time-­to-­market and the overall cost to get started and to scale.

It is a cloud-native API Gateway and Ingress Controller built on Envoy Proxy to facilitate and secure application traffic at the edge.

One platform that lets you optimize, monetize and accelerate your digital transformation initiative. It allows businesses to become platform enablers, grow profitable partnerships and build new channels to market.

It helps you handle OAuth flows, store API keys, and refresh access tokens. Remove integration bottlenecks from your sales pipeline. Increase the activation rate per integration and directly impact product retention.

It is for individuals, startups, SMEs, and large enterprises who want to save valuable time and energy when building and maintaining software products. It offers a suite of APIs including verification, web conversion, data conversion, and UK postcode APIs. These essential core building blocks make it easy to enrich the user experience, perform address checks and email validation, and scrap web content and data quickly and easily.