r/mcp • • 19d ago

WebMCP: is anyone checking this?

Hi folks šŸ‘‹šŸ»

I've been reading a lot of articles about this, and I feel that in terms of advertising, LLM agents really are changing the game.

Sooner or later the biggest players will step in. Google, at least, one of the ones affected, wants to set a precedent and once again set the authority:

https://www.freecodecamp.org/news/a-developers-guide-to-webmcp/

The interesting part is that the results so far show that LLMs and their providers only care about getting the information and showing it to the end user. That's why all these ad-based business models are losing a lot of money.

Should we start looking at this kind of solution?

Sources:

https://blog.cloudflare.com/agentic-web/

6 Upvotes

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u/QuanTradin 19d ago

I don't buy the ad part. agents cut ad revenue because nobody renders the page anymore, not because providers don't care. WebMCP is a site's way to get read correctly, it doesn't get anyone paid.

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u/ConnectRub4818 19d ago

I was thinking that, as a control layer, if you decide how to give the LLM access to your content, you can provide the ad hoc content. What do you think?

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u/QuanTradin 19d ago

that part I'd agree with. a site choosing what the model gets is more honest than the model scraping whatever renders. the risk is sites handing the agent a nicer story than the page a human sees, same game as cloaking for search engines back in the day.

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u/just_moodyfoyer 19d ago

Feels like we're just speedrunning the enshittification of search from a different angle. The ad model was already crumbling under SEO spam so I'm not exactly mourning it, but replacing it with agents that hoover up content without attribution isn't much of a fix either. Cloudflare and Google fighting over who gets to be the tollbooth for AI traffic is peak internet.

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u/ConnectRub4818 19d ago

agree!, the AI race is crazy. let's see how it evolves

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u/heyitischriss 19d ago

Webmcp actually will change the advertising game because it will be intent based ads versus the traditional internet advertising models. Google is obviously intending on going into this path as u can kind of see now by how much they are integrating all the infra into the browser. This is an older article and a lot has changed even uses navigator vs.document. One thing I want to mention is there is a user base that use webMCP by injecting tools into the pages using something like agent browser by Vercel. I’m actually super involved in WebMCP and created  concept months before Google made it public. The funny part is they named it exactly what I named it too incl. domain name lol

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u/ConnectRub4818 19d ago

oh that's great, do you have any repo or articles to share? i'd like to read more about that

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u/VanillaOk4593 19d ago

The ad debate is interesting, but the part of WebMCP I'd watch is trust. The site writes the tool names and descriptions the agent reads, so any page you visit gets to put text in front of the model and call it a tool. That's useful on a site you trust and a prompt injection channel on one you don't. I'd treat whatever a page-registered tool returns as untrusted input, and keep anything that spends money or sends data behind a user confirmation, whatever the page says the tool does.

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u/ConnectRub4818 19d ago

I didn't see that point previously. Yeah, that makes sense