Dev tools · alternatives · 2026
24 alternatives to Kalisto
Grpc client with built-in scripting environment
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Kalisto launched in 2023; newer entries below may have overtaken it.
- 1
🔥 GUI client for gRPC/gRPC-Web. Contribute to getezy/ezy development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 2
Fern▲260We built the world’s first generated, idiomatic gRPC and REST SDK. If you have public gRPC and REST endpoints, Fern is the SDK provider for you.
2025 · buildwithfern.com · its alternatives →
- 3
Proto Client▲57Read proto files and send gRPC requests though an easy GUI
2022 · apps.apple.com · its alternatives →
- 4
gRPC over WebRTC▲102gRPC over WebRTC. Contribute to jsmouret/grpc-over-webrtc development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 5
A realtime server for the modern web
2016 · deepstream.io · its alternatives →
- 6
Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 7
A universal CLI client for MCP. mcpc supports persistent sessions, stdio/HTTP, OAuth 2.1, tasks, JSON output for code mode, proxy for AI sandboxes, x402, and more. - apify/mcpc
Jan 2026 · github.com · its alternatives →
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- 9
This project template lets you bootstrap your next gRPC app with zero trust overlay networking. Make your gRPC server invisible to bad actors, and only allow verified clients to connect to it.
2022 · github.com · its alternatives →
- 10
grpc microservices with mutual TLS and token authentication in Go - 3n21c0/hello-auth-grpc
2017 · github.com · its alternatives →
- 11
Your preferred gRPC endpoint testing tool. Making sure your outbound 🗣️ ‘yodelay’ returns the ‘IiiOoo’ 📣 that you expect - oslabs-beta/Yodelay
2020 · github.com · its alternatives →
- 12FA
Today we're announcing frpc-go, an RPC framework that's designed from the ground up to be lightweight, extensible, and extremely performant. In an apples-to-apples comparison fRPC outperforms gRPC by more than 4x, doing more than 2 million RPCs/second on a single node. Check out our docs site at https://frpc.io!
2022 · loopholelabs.io · its alternatives →
- 13
I created cmd-stream-go, a high-performance client-server library based on the Command Pattern, where Commands are first-class citizens. Why build around Commands? As serializable objects, they can be sent over the network and persisted. They also provide a clean way to model distributed transactions through composition, and naturally support features like Undo and Redo. These qualities make them a great fit for implementing consistency patterns like Saga in distributed systems. On the performance side, sending a Command involves minimal overhead — only its type and data need to be…
2025 · github.com · its alternatives →
- 14
A Google Protocol Buffers (Protobuf) payload decoder/analyzer - sandermvanvliet/ProtobufDecoder
2021 · github.com · its alternatives →
- 15
Up to 8x faster gRPC. Rust safety. Still Python.
May 2026 · grpyc.com · its alternatives →
- 16
A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints. - sunny-chung/hello-http
2023 · github.com · its alternatives →
- 17
Ultra Low-latency Solana streams for traders, bots, etc
Oct 2025 · bitquery.io · its alternatives →
- 18SU
2021 · blog.gendocu.com · its alternatives →
- 19
Herts▲2Unified gRPC/HTTP realtime streaming framework for Java
2023 · framework.hertsstack.org · its alternatives →
- 20
Hello HN, Pietro here! I've been really excited to see the recent buzz around MCP and all the cool things people are building with it. Though, the fact that you can use it only through desktop apps really seemed wrong and prevented me for trying most examples, so I wrote a simple client, then I wrapped into some class, and I ended up creating a python package that abstracts some of the async uglyness. You need: * one of those MCPconfig JSONs * 6 lines of code and you can have an agent use the MCP tools from python. The structure is simple: an MCP client creates and manages the connection and…
2025 · github.com · its alternatives →
- 21WR
Hi HN, I previously wore SWE/SRE hats on GCP. Later, I was on the other side, managing thousands of machines. The friction points of onboarding and operating cloud systems are personal problems to me. I’ve found it hard to keep track of all the random cloud resources floating around, especially as my team’s assets proliferated. Occasionally, there is a resource affecting an outage but no one remembers where it is. I am constantly frustrated by existing tooling. APIs can work, after you’ve navigated the byzantine documentation, but I often find myself doing ad-hoc tasks which are best…
2022 · listvms.com · its alternatives →
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- 23
Hey HN, Gal, Nir and Doron here. Over the past 2 years, we've helped teams debug everything from prompt issues to production outages. We kept running into the same problem: Jumping between our IDEs and our observability dashboards. So, we built an open-source MCP server that connects any OpenTelemetry backend (Grafana, Jaeger, Datadog, Dynatrace, Traceloop) to our dev environment using an MCP. While there are many MCP servers built for specific providers (like Datadog’s - https://docs.datadoghq.com/bits_ai/mcp_server), they’re closed source (so we can’t easily extend…
Nov 2025 · github.com · its alternatives →
- 24
Simple, reliable, interoperable. A better gRPC.
2022 · connectrpc.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →