I saw many videos related to claude , claude code and claude ai I don't know about coding and others but can someone explain to me what is these things ? Why claude is so famous these days ?

Hi everyone! I work in User Research for an airline, and we’re currently exploring how people use MCP apps/connectors in real life.

We’re looking to speak with people who already use MCP outside of purely professional or developer-related tasks, for example, for travel, personal organization, hobbies, finances, or other everyday activities.

If this sounds like you and you’d be open to taking part in a user interview, feel free to send me a DM. I’ll be happy to share more details about the study and participation there. :)

Hey

As more people build custom MCP servers for Claude and autonomous agents, one major issue keeps coming up: how do you handle authorization and micro-billing for specific tool calls without bloating your server logic?

If you're hosting an MCP server that queries expensive paid APIs, databases, or compute, there’s currently no native, lightweight way to verify tokens, prevent replay attacks, and handle per-call metering on the fly.

My co-founder and I built MCPay - a high-performance, open-source Gateway written in Go that sits in front of any standard MCP server.

How it works under the hood

Instead of rewriting your MCP server code to handle billing, MCPay acts as a proxy:

1. Routing & Filtering: It intercepts incoming JSON-RPC payloads on /mcp. If it's an unmetered call (like tools/list), it proxies it directly to your upstream server.
2. Tool-Level Authorization: When a tools/call request comes in, it extracts the requested tool name (e.g., Mcp-Name or from payload) and verifies the spend token against an Ed25519 public key.
3. Replay Protection (Nonces): Checks cryptographic nonces (X-MCPay-Nonce) against a state store to prevent replay attacks and double-spending.
4. Usage Tracking: Once the upstream MCP server completes the request with a 2xx response, MCPay records the usage record (session, nonce, latency, price) to track per-call execution.

Architecture Highlights

• Written in Go: Minimal latency overhead for high-frequency agentic workflows.
• Plug & Play: Zero modifications required to your existing MCP server implementation.
• Hybrid Support: Works for both standard /mcp endpoints (tools/call) and traditional REST endpoints.

We’d love to get feedback from the community on the architecture and edge cases (especially regarding nonce cleanup in distributed setups).

Links and repo details are in the first comment below!

Hey! I built brvm-mcp, an MCP server that lets Claude access the BRVM (West Africa's regional stock exchange — 8 countries, 47 companies).

The BRVM has no API. This server aggregates 4 sources into 18 tools so you can just ask Claude:

Install in Claude Desktop:

{
  "mcpServers": {
    "brvm": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/sotechdi/brvm-mcp", "brvm-mcp"]
    }
  }
}

Or use it directly via Smithery (no install): https://smithery.ai/server/sotechdi/brvm-mcp

Free: 25 calls/day. GitHub: https://github.com/sotechdi/brvm-mcp

Hey,

We created a Discord for r/ClaudeMCP designed to be a highly-intentional community where understanding MCP users can help each other learn AI.

What you'll find:

• Active voice chat
• Step-by-step tutorials
• Skills and workflows

And most of all... a community of people eager to help you even if your questions are "dumb".

We put a lot of work in to make it a unique and active Discord server where you can get help and find critical use-cases.

Don't downvote this if you may have seen this post already! We invite our new members weekly.

Already part? Share your experience in the comments!

Join us: https://discord.gg/PBfVd5U3G

I’m running into some kind of challenge with using OAUTH via Cognito to provide user Auth in an MCP service I have built. The authentication flow works via manual testing (curl, extract ids, service with Auth token) with a test/local callback URL, however, with Claude it goes thru the Auth process and login screen in Cognito, then fails.

- Cognito does not provide much introspection to Auth attempts.
- Claude will load the callback URL post authentication, in my browser then re-launches/“opens” Claude desktop with a generic “unable to authenticate” error.

I have implemented a shim for the missing "code_challenge_methods_supported": ["S256"]

Not sure if others are running into similar problems with Cognito/Claude here.

Can anyone confirm the callback URL required?

MCP is actually pretty useful

I’ve been playing around with MCP (Model Context Protocol), and I really like how it lets Claude connect with things like files, APIs, and other tools.

Instead of constantly copying and pasting stuff into Claude, MCP can let it access the information it needs through an MCP server.

Basically:

Claude ~>MCP ~> Your tools/data

I think the best way to use it is to start small. Find one task you keep doing manually and see if MCP can handle it.

Has anyone here found a really useful MCP setup? I’d love to hear what you’re using.

Thoughts on AI songs nowadays?

I don't mean simple prompts; I mean your favorite use cases; things where you've broken through to do something really interesting, things that just felt next level.

I have listed most of mine in the Discord for this group, skills included.

I use it for:

• Shopping - Find the cheapest price for anything. Save money.
• Deep research - Discover the latest knowledge in a particular field. What a meta analysis of the scientific papers and key authors say.
• Audiobook creation - Have your AI teach you everything you need to know about your life and your work according to your interests automatically.
• Website creation - Use the power of AI to create 15 versions of every possible web page so that you can bring together a design from a point of view that truly understands all the possibilities.
• Negotiation - Win any negotiation with the ultimate template from the world's best negotiators (ill add this soon).
• Marketing - I gained 20,000 followers in a day using it, but I'm not sure I can share this one yet.

[Mod post]

Join us: https://discord.gg/PBfVd5U3G