Thanks for sharing

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.

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 URL: https://news.ycombinator.com/item?id=47206930

Points: 7

# Comments: 9

  I kept seeing the same question asked over and over in startup communities:
  "What tech stack should I use for my SaaS?" The answers were always
  scattered, opinionated, and never accounted for budget or team size.

  So I built appstackbuilder.com — you tell it your monthly budget, app type,
  team size, and skill level, and it recommends a full stack (auth, database,
  hosting, payments, analytics, etc.) with actual pricing for each tool.

  A few things that make it different from generic advice:

  - It accounts for team size when calculating costs (e.g. Clerk charges per
    user, Linear charges per seat — most stack guides ignore this)
  - You can toggle "no-code only" if you're a non-technical founder
  - It shows you 2–3 alternatives per category, not just one option
  - You can export the full stack as a PDF or share a link
  - It's completely free, no account required

  Under the hood: Next.js, Supabase, and Gemini for the recommendations.
  The tool database has ~80+ tools across categories with real pricing data
  I manually verified.

  What I'm still figuring out:
  - How to keep pricing data fresh as tools change plans frequently
  - Whether to add a "stack score" based on community usage data
  - If the no-code recommendations are actually good (I'm a developer,
    so I'd love feedback from non-technical founders specifically)

  Would love brutal feedback, especially if the recommendations feel off
  for your use case.

Comments URL: https://news.ycombinator.com/item?id=47110469

Points: 6

# Comments: 4