Kreya

In plain words

Kreya is a development tool for testing and interacting with APIs, supporting both gRPC and REST protocols. It is designed for developers who need an alternative to Postman with a clean interface that handles advanced use cases. The tool includes features like innovative authentication approaches and API importers, initially built to overcome limitations in existing gRPC tools.

written from the facts on this page · September 2026

From the sources

The BEST alternative to Postman and Insomnia! Kreya is a GUI client for REST and gRPC APIs. All data is stored locally and Kreya is designed for collaboration via git and other tools. Designed to be easy to use while also supporting advanced use cases.

Explore, test, and automate gRPC, REST, GraphQL, WebSocket, and SSE APIs in a privacy-first desktop client with Git-friendly local files.

Kreya is the privacy-first desktop client that lets your team explore, test, and automate API workflows from one place without SaaS lock-in or messy tooling sprawl. Kreya unifies exploration, scripted testing, and CI automation in a privacy-first workspace so teams can ship faster without losing confidence. One workspace for every protocol, transport, and definition. Debug gRPC, REST, GraphQL, Server-Sent Events, and WebSocket APIs from a single workspace. Watch OpenAPI specs, GraphQL schemas and protobufs and continuously import your API definitions. Inspect streaming, unary, and multi-channel traffic with built-in HTTP/1.1, HTTP/2 and HTTP/3 support. Connect over HTTP, local Unix domain…from kreya.app

In the maker’s words, at launch

Hi HN! For over a year we've been working on Kreya. At first, it only supported gRPC, because the alternative tools (eg. BloomRPC) were very limited in their functionality. Since then, we have added many features, trying hard to keep the UI clean while still supporting advanced use cases. Yesterday, we released Kreya…

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