Mapstraction : A javascript library to hide differences between mapping APIs.
pump.io : Social server with an ActivityStreams API. It's a stream server that does most of what people really want from a social network.
Kong : Secure, Manage & Extend your APIs and Microservices
The open-source management layer for APIs, delivering high performance and reliability.
RESTful I...
Cockpit : Simple Content Platform to manage any structured content.
A self-hosted headless and api-driven CMS.
Webhook Tester : Webhook Tester allows you to easily test webhooks and other types of HTTP requests.
Bluepine is a DSL for defining API Schema/Endpoint with the capabilities to generate Open API (v3) spec, validate API request and serialize object for API response based on single schema definition.