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grpcmd

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Spec score 8.2 #3 of 24 in gRPC Tools

What it is

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.

Spec sheet

Product
grpcmd is a command-line tool for working with gRPC.Read 4 Oct 2026 · grpc.md
Desktop app
The maker describes grpcmd-gui as an open-source, local-first, privacy-focused desktop app for gRPC API development and testing.Read 4 Oct 2026 · grpc.md
GUI features
grpcmd-gui supports fetching methods from reflection, sending request headers, viewing response headers and trailers, JSON request templates, streaming, and themes.Read 4 Oct 2026 · grpc.md
GUI platforms
grpcmd-gui downloads are offered for macOS, Windows, and Linux, including amd64 and arm64 builds.Read 4 Oct 2026 · grpc.md
JavaScript dependency
grpcmd-script is distributed as a binary and does not require the Node.js runtime.Read 4 Oct 2026 · grpc.md
JavaScript test tool
grpcmd-script lets users define gRPC endpoint tests in JavaScript and assert response headers, data messages, and trailers.Read 4 Oct 2026 · grpc.md
Method details
It describes a gRPC method and outputs descriptions of its request and response messages.Read 4 Oct 2026 · grpc.md
Operating systems
Binary downloads are available for macOS, Linux, and Windows.Read 4 Oct 2026 · github.com
Proto files
Users can provide .proto files and import search paths instead of using reflection.Read 4 Oct 2026 · grpc.md
Reflection
It can list available gRPC services and methods using reflection.Read 4 Oct 2026 · grpc.md
Requests
It calls gRPC methods and supports streaming requests and responses, with headers, data, and trailers in output.Read 4 Oct 2026 · grpc.md
Server
It can start a gRPC server implementing grpcmd.GrpcmdService with reflection.Read 4 Oct 2026 · grpc.md
Shell completion
The documentation lists completion setup for Bash, Zsh, fish, and PowerShell.Read 4 Oct 2026 · grpc.md
Test assertions
grpcmd-script supports importing the chai assertion library.Read 4 Oct 2026 · grpc.md

Plans and prices

grpcmd Free $0 USD / year Send requests · Start a server · Supports reflection · List and describe methods · JavaScript scripting Read 4 Oct 2026 · grpc.md
grpcmd-script $9 a year $24 $9 USD / year (Early Bird Pricing) JavaScript requests and tests · Software updates · Single binary · No Node.js Read 4 Oct 2026 · grpc.md

Every grpcmd plan and price →

Strong points and limits

Strong points

  • Runs on Linux, macOS, and Windows.
  • Supports reflection and supplied.proto files.
  • Streaming calls show headers, data, and trailers.
  • Shell completion instructions cover four shells.
  • grpcmd is listed at free.

Limits

  • grpcmd-script costs $9 a year.
  • The JavaScript test tool is a separate product.
  • The GUI is a separate desktop app.

Who it suits

grpcmd suits developers who work with gRPC from a command line and need reflection, streaming calls, or an option to use .proto files. Its related script and desktop tools address endpoint testing and GUI-based development.

Verdict

grpcmd covers service discovery, method details, calls, and server startup in a cross-platform command-line tool. The related script and GUI tools add testing and desktop workflows, but have separate product details and pricing.

Where Specifiction places it

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