Kreya

Kreya is a desktop client that lets developers explore, test, and automate APIs across several protocols, including gRPC, REST, GraphQL, WebSocket and Server‑Sent Events. It provides a single workspace where API definitions can be imported from OpenAPI specs, GraphQL schemas and protobuf files, and supports streaming, unary and multi‑channel traffic with built‑in HTTP/1.1, HTTP/2 and HTTP/3 transports as well as Unix domain sockets and Windows named pipes.

The tool includes automated testing features such as snapshot comparison, JavaScript scripting, and data‑driven test execution, allowing users to detect regressions and run CI‑ready checks via a headless CLI that can generate JUnit reports. All request data, environments and authentication credentials are stored locally in git‑diffable files, enabling version control, review and collaboration without a SaaS backend.

Kreya’s privacy‑first design keeps all information on the user’s device, supporting a range of authentication methods (OAuth 2.0, OIDC, API keys, mTLS, AWS SigV4, Kerberos, NTLM, JWT) and reusable auth vaults. It is available for macOS, Windows and Linux and targets developers who need a unified, offline‑capable solution for API development and continuous integration.