OVAPI - Free Browser Based API Client

OVAPI is a browser‑based client that lets users construct and send a variety of request types, including HTTP, GraphQL, gRPC, WebSocket, and SOAP. The interface runs entirely in the web browser, so no local installation is needed, and it provides tools for organizing requests into collections and defining reusable environment variables.

The platform is built for collaborative use: multiple teammates can work on the same set of requests and environments in real time, sharing changes instantly without requiring separate accounts or licenses. Because it is offered as a free service, there is no imposed limit on the number of collaborators who can access a given workspace.

Designed for developers and teams that need a lightweight, shareable way to test and debug APIs, OVAPI focuses on accessibility and teamwork rather than advanced automation or enterprise‑grade features. It remains in an experimental maturity stage.