Evans
Evans: A capable open-source CLI for inspecting, invoking, and scripting gRPC APIs. Ranked #6 of 24 in gRPC Tools by our editors (8.2/10); pricing: Free plan; best for CLI users who need interactive and scripted RPC calls.
At a glance
- Editor score8.2 / 10
- PricingFree plan
- Best forCLI users who need interactive and scripted RPC calls
- Free planYes
- Paid fromFree
- gRPC-Web supportYes
- Facts checked20 Sep 2026
Where it wins
- Interactive REPL and stateless CLI modes support varied workflows
- Covers reflection, streaming RPCs, JSON, TLS, and gRPC-Web
- Runs on Windows, macOS, Linux, and Docker
Where it doesn't
- No verified mock-server or API testing capabilities
- No verified CI or load-testing features
- Self-hosted tooling requires local setup and maintenance
Our verdict on Evans
Evans is an open-source command-line gRPC client for developers who need to inspect, invoke, and automate gRPC APIs. Its interactive REPL includes command completion, while the stateless CLI mode supports scripted requests. Developers can work with local Protocol Buffers 3 files or connect to services that expose server reflection, making Evans suitable for both exploratory calls and repeatable command-line workflows.
The feature set covers the main gRPC interaction patterns: unary, client-streaming, server-streaming, and bidirectional RPCs. Service and method inspection helps users understand an available API, while JSON input and output can make request and response handling more convenient in shell-based workflows. TLS connections and gRPC-Web support extend its fit across different service configurations, and Docker distribution provides another way to include the client in a development environment.
Evans is distributed as open-source software under the MIT License, with binaries for Windows, macOS, and Linux, plus Homebrew and Docker distribution. The published product details position it as a focused client rather than a broader API quality platform: mock servers, test tooling, continuous integration features, and load testing are not part of its verified capabilities. Choose Evans for interactive inspection, direct RPC calls, and scripted command-line automation. Teams seeking dedicated mocking, test execution, CI workflows, or load testing should consider a tool built around those functions instead.
Your product? Our editors can test Evans in depth and publish a review, labelled as paid · from $149/mo →
Evans pricing
Evans fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment model | Self_hosted |
| gRPC-Web support | Yes |
| Server reflection | Yes |
| Mock server | Not verified |
| Protobuf editor | Not verified |
| Load testing | Not verified |
| CI integration | Not verified |
| Deployment | Self-hosted |
| Platforms | Windows, macOS, Linux |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Evans
- BanduraA free, cross-platform gRPC tester with strong offline, CLI, and CI coverage.9.4
- KreyaA broad desktop API client for gRPC, REST, GraphQL, WebSocket, and SSE workflows.9.2
- FintXA focused gRPC desktop test bench for invocation, functional checks, mocks, and load testing.8.9
Evans vs the competition
- Evans vs Bandura
- Evans vs Kreya
- Evans vs FintX
- Evans vs BloomRPC Extended
- Evans vs grpcui
- Evans vs grpcurl
Compare Evans with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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