FintX vs gRPC CLI

FintX is a native desktop gRPC test bench for functional and performance testing, available on Linux, macOS and Windows. Functional tests compare actual responses with expected responses and show a visual diff. Load testing supports incremental, constant and burst scenarios. FintX can mock external gRPC services, including unary and streaming methods, with responses customized through C# scripting. It generates test data from protobuf definitions using Faker.js/Bogus. To create a gRPC client, users can supply a.proto file or the HTTP location of a gRPC Reflection Server; generated C# client code is compiled into an assembly and saved locally for reuse. Data is stored as text files on the local machine. The free Community plan includes unlimited gRPC clients, request auto-save, import and export, method tabs, a JSON editor and projects. Professional is $100 per seat and adds functional tests, validation rules, visual diffs, test collections, summarized reports and performance testing. Enterprise is $995 for unlimited users. The linked privacy policy contains placeholder text rather than substantive privacy details.

gRPC CLI is a free, open-source command-line tool in the gRPC repository for inspecting services and calling remote methods. It can send unary RPCs, attach metadata to requests, display metadata received from a server, and handle common server authentication. With server reflection, it can list services and methods; when reflection is unavailable, local proto files can supply service definitions and request or response types. Requests can be read in proto text or wire form. Responses can be displayed as text or written to a file in wire form. Streaming RPC support is described as a desired capability, not part of the documented core functionality. The tool runs on Linux, macOS, and Windows, but must be built from repository source. The documented process uses CMake and the `make grpc_cli` build target. Its documentation describes the tool as not yet up to par in user-friendliness and says grpcurl is better maintained in its current state. The gRPC repository identifies its license as Apache-2.0.