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mercury24aug

mercury24aug on Hacker News

Re:MCP safety is a big concern, so we created BDSMCP, a proposal to ma... on Wednesday April 01, 2026 @08:56PM (#47608721)
MCP is a relatively new protocol, and we are still ironing out some of the kinks. So we created BDSMCP, a proposal for how to make MCP safer for everyone.
Re:MCP Apps just dropped (OpenAI and Anthropic collab) and I think thi... on Sunday November 23, 2025 @03:35PM (#46027098)
Giving LLM the ability to generate UI is a cool concept, but our models are not there yet. MCP Apps can be extremely powerful, for example, you can play Doom inside ChatGPT: https://x.com/rauchg/status/1978235161398673553?s=20

I don't think we can generate anywhere close to this kind of UI just yet.

We built https://usefractal.dev/ to make it easier for people to build ChatGPT Apps (they are technically MCP Apps) so I have seen the use cases. Most of these use cases LLM cannot generate the UI on the fly.

Re:MCP Apps just dropped (OpenAI and Anthropic collab) and I think thi... on Sunday November 23, 2025 @03:30PM (#46027047)
This is a very strict definition of MCP. An agent (with LLM call inside) can be an MCP. Event a UI component can be an MCP.
Re:MCP Apps just dropped (OpenAI and Anthropic collab) and I think thi... on Sunday November 23, 2025 @03:28PM (#46027039)
AI fills in a form, and you want to adjust the form before clicking submit. How often do you have to adjust AI's answer vs accepting it as is
Re:MCP Apps just dropped (OpenAI and Anthropic collab) and I think thi... on Saturday November 22, 2025 @10:27PM (#46020503)
Looks like OpenAI, Anthropic, and the MCP-UI team actually worked together on a common standard for MCP Apps: https://blog.modelcontextprotocol.io/posts/2025-11-21-mcp-ap...

Honestly, I think the biggest friction for MCP adoption has been how un-userfriendly it is. It’s great for devs, but not the average users. Users don't always want to chat, sometimes they just want to click a button or adjust a slider. This feels like the answer to that problem.

Full disclosure, I'm partial here because of our work at https://usefractal.dev. We were early adopters when MCP first came out, but we always felt like something was missing. We kept wishing for a UI layer on top, and everyone says it's gonna take forever for the industry to adopt, maybe months, maybe years.

I cannot believe the adoption comes so quickly. I think this is gonna be huge. What do you guys think?

Re:Show HN: OpenAI hasn't released their Apps SDK so we did on Friday October 10, 2025 @06:31PM (#45544581)
Thank you so much! I'm glad you like it
Re:Apps SDK on Friday October 10, 2025 @03:52PM (#45543042)
It's funny how OpenAI announced Apps SDK without the SDK. Anyway, we was so excited to get my hands dirty that we built our own SDK: https://github.com/fractal-mcp/sdk
Re:My startup failed, and this is what it feels like on Monday June 23, 2014 @11:40PM (#7936077)
This account was created 4hr ago just to write negative comments on this thread.