grpcmd vs Kreya

grpcmd is a free command-line tool for working with gRPC services on Linux, macOS, and Windows. It can use reflection to find available services and methods, describe a method’s request and response messages, and make calls. Requests and responses can stream, with headers, data, and trailers included in output. Users who do not want to rely on reflection can instead provide.proto files and import search paths. The tool can also start a gRPC server implementing grpcmd.GrpcmdService with reflection, and its documentation covers shell completion for Bash, Zsh, fish, and PowerShell. A related tool, grpcmd-script, lets users define endpoint tests in JavaScript and assert response headers, data messages, and trailers; it is distributed as a binary and does not require Node.js. The separate grpcmd-gui desktop app supports reflection-based method lookup, request headers, response headers and trailers, JSON request templates, streaming, and themes. GUI downloads are available for macOS, Windows, and Linux, including amd64 and arm64 builds. grpcmd is listed at free; grpcmd-script is listed at $9 a year with early-bird pricing.

Kreya is a desktop API client for exploring, testing, and automating API workflows on Linux, macOS, and Windows. It works with gRPC, REST, GraphQL, WebSockets, and Server-Sent Events, and can watch or import OpenAPI specifications, GraphQL schemas, and protobufs. Testing options include scripted checks and snapshot tests; its headless CLI can run in CI/CD and generate JUnit reports. Projects are kept in structured JSON intended to support Git diffs, reviews, and versioning. Kreya can import Postman and Insomnia collections, plus HAR, cURL, gRPCurl, and grpc web curl data. A reusable authentication vault covers OAuth 2.0, OIDC, Basic, API keys, mTLS, AWS SigV4, Kerberos, NTLM, and JWT Profile. The maker says app data stays on the device, while its privacy policy says the app and CLI collect anonymized telemetry. There is a free plan; Pro is $5 a month. Secret manager integration is marked as coming soon.