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Show HN: Glass box governance for multi-agent AI coding workflows

https://github.com/Vinix24/vnx-orchestration
1•vincentvandeth•1m ago•0 comments

Show HN: Plagiarismremover.ai – A Free AI Plagiarism Remover

https://plagiarismremover.ai/
2•PlagiarismRem•4m ago•0 comments

What I learned building a Multi-Agent System

https://davide.im/posts/multi-agent-system/
2•vector3•5m ago•0 comments

Show HN: Lensboy – Lightweight camera calibration with spline distortion models

https://github.com/Robertleoj/lensboy
1•robertleoj•8m ago•0 comments

Goodbye P < 0.05. P-value is simply one among many to gauge scientific evidence

https://www.sciencedirect.com/science/article/abs/pii/S1878788626000159
1•XzetaU8•8m ago•0 comments

Show HN: Nano Banana 2 Playground – text-to-image and image-to-image demo

https://nanobanana-2.xyz
1•iamouyang•10m ago•0 comments

Show HN: I built a headless bot to automate SaaS directory launches (and AI SEO)

https://signalscan.eu
1•Ben_Tycho•10m ago•0 comments

WatchGuardian: Enabling User-Defined Just-in-Time Intervention on Smartwatch

https://dl.acm.org/doi/10.1145/3788689
1•brandonb•18m ago•0 comments

California Becomes Latest State to Weigh Balcony Solar Legislation

https://www.bloomberg.com/news/newsletters/2026-01-30/california-becomes-latest-state-to-weigh-ba...
1•bilsbie•19m ago•0 comments

Show HN: Audio Toolkit for Agents

https://github.com/shiehn/sas-audio-processor
1•stevehiehn•19m ago•0 comments

Archiving my tweets in my own blog

https://solmaz.io/x/2027708131254387017/
1•hosolmaz•19m ago•0 comments

Show HN: Chromectl – CLI to give an AI agent its own Chrome session

https://github.com/BartlomiejLewandowski/chromectl
1•bartek_gdn•21m ago•0 comments

Cursor built this 5 min 3 round Wordle

https://apps.apple.com/us/app/fastdle/id6739634096
1•triviatroy•22m ago•1 comments

Show HN: SkillMesh (role-based tool routing for Claude/Codex)

https://github.com/varunreddy/SkillMesh
2•VarunReddy023•22m ago•0 comments

Living with Hyperphantasia

https://www.theguardian.com/science/2026/feb/28/living-with-hyperphantasia
1•bookofjoe•23m ago•0 comments

Ask HN: What can humans do that intelligent machines will not be able to do?

1•cs702•24m ago•0 comments

Show HN: Delta – A disk space analyzer that tracks where your disk space went

https://github.com/chuunibian/delta
1•zerfallen•24m ago•1 comments

Think of BigConfig Package as 'Helm for Everything'

https://www.bigconfig.it/use-cases/package/
1•amiorin•26m ago•0 comments

The Epstein Files and the Epstein Class

http://colabopad.blogspot.com/2026/03/the-epstein-files-and-epstein-class.html
4•Edmond•28m ago•0 comments

Background Agents

https://background-agents.com/
2•thebuilderjr•28m ago•0 comments

Show HN: Videolyti – Free video downloader with built-in AI transcription

https://videolyti.com/en
1•coder_decoder•29m ago•0 comments

NIST to introduce restrictions on non-US citizens

https://physicstoday.aip.org/news/nist-to-introduce-restrictions-on-non-us-citizens
2•bikenaga•30m ago•0 comments

Ask HN: Vibecoding feels like playing golf, wdyt?

2•julienreszka•31m ago•0 comments

Is Nvidia's post-Rubin roadmap shifting toward inference-first architectures?

https://www.buysellram.com/blog/nvidia-next-gen-feynman-beyond-training-toward-inference-sovereig...
1•jamesbsr•32m ago•1 comments

My Favorite 39C3 Talks

https://asindu.xyz/my-favorite-39c3-talks/
2•max_•34m ago•0 comments

Bolt.gives Introduces Free, Agentic AI Coding Platform

https://github.com/embire2/bolt.gives
2•embire2•35m ago•0 comments

Bad Thing Insurance – Coverage for alien abduction, rogue black holes, and AGI

https://badthing.xyz/
2•rooster666•36m ago•1 comments

Fast-Servers: An Interesting Pattern?

https://geocar.sdf1.org/fast-servers.html
2•signa11•36m ago•0 comments

Reverse engineering "Hello World" in QuickBasic 3.0

https://marnetto.net/2026/03/01/brun-hello-world
2•alberto-m•37m ago•2 comments

Driftwood – friendly AppImage manager for Linux

https://apps.lashman.live/driftwood/
1•bovermyer•39m ago•0 comments
Open in hackernews

Show HN: MCP Playground – free MCP test servers, inspector, and 10K+ server list

https://mcpplaygroundonline.com
7•rupatiwari25•1h ago
MCP Playground is a Postman-style tool for MCP — inspect servers, execute tools live, test your client, all from the browser.

Four things in one place:

1. Free hosted MCP servers — four public test servers anyone can point their client at: Echo (connectivity), Auth (Bearer token flow), Error (error handling), Complex (multi-tool schemas).No sign-up, just use the URL.

2. Server inspector — paste any remote MCP server URL, see all its tools/resources/prompts, execute them live, inspect the full JSON-RPC log. HTTP, SSE, and WebSocket all supported.

3. Registry — 10,000+ servers indexed by category. Each links to the repo and can be tested in the inspector directly.

4. Recipes + guides — 45 articles and step-by-step workflows for real use cases: GitHub PR reviewer, standup bot, database query assistant, Meta ads automation, and more.

Everything free, no install, no sign-up.

Happy to answer questions on the implementation.

Comments

mt18•1h ago
Any plan to support ws transport ? A few newer mcp servers are moving away from SSE
rupatiwari25•1h ago
yes, it’s in the pipeline.
mt18•1h ago
I liked the recipe part though especially the Meta Ads one, you can keep it open for others to contribute as well—it could help increase engagement.
rupatiwari25•1h ago
Noted. Thanks
nikhiltiwari25•1h ago
How is this different from MCP Inspector?
rupatiwari25•1h ago
Inspector is the right tool for local STDIO servers — use it. We're complementary, not competing.

MCP Playground fills a different gap: no install (browser tab, nothing to run), built for remote HTTP/SSE endpoints rather than local processes, and includes hosted test servers so you can verify your client implementation without needing a server at all. Plus a registry if you're trying to discover what's out there.

Inspector ideal for: STDIO, local debugging, open source, deeper protocol introspection. MCP Playground for: zero setup, remote servers, client testing, browsing mcp registry/server list.

guerython•1h ago
Love the hosted SSE/HTTP mirrors and registry. We built something similar to catch handshake drift in our remote MCP clients, and being able to replay the JSON-RPC log in-browser saved us from chasing environment-specific timeouts because we could rerun the exact frame sequence from the failure. One idea: add a little health badge per server showing last-seen transport (HTTP/SSE/WS) plus a running error count so integrators know which endpoint matches their stack before they flip the switch.
rupatiwari25•1h ago
Really appreciate this — handshake drift is a real issue in MCP setups. Also love the health badge idea (showing last transport + error count would be super helpful).

Thanks for sharing