An AI agent is an assistant that doesn't just answer questions: it also opens pages, compares options and fills in forms for the person. Until now, to use a website it had to "look" at it the way someone with a mouse would: read buttons, guess which field is which and hope not to get it wrong. WebMCP is a proposed standard, backed by Google and Microsoft, that lets a site tell the agent directly what it can do there.
WebMCP, in plain terms
It's a way for your website to publish "tools" an agent can use: for example, list services, find a case study by industry or prepare a quote request. Each tool has a name, a description and the data it needs. The agent no longer guesses: it asks the page what it offers and uses it properly.
It's like the difference between a tourist ordering at a restaurant by pointing at other tables' dishes and one who is handed the menu in their own language. There are two ways to implement it:
- Declarative: you add a few attributes to an existing form (the tool name, its description and what each field means). The agent fills it in and the person reviews and sends it.
- In code: the site registers JavaScript functions, such as one that returns the list of services with their links.
Where it stands
As of October 2026, WebMCP is in trial (origin trial) in Chrome, and its documentation warns it may change. Safari and Firefox are part of the discussion but haven't implemented it. In other words, almost no visitors use it yet. What is changing is the direction: browsers are getting ready for agents to run errands on the web, and sites that clearly explain what they offer will be easier for them to use.
What we did on origamicreative.cl
We tested it on our own site first. It now exposes four tools, in Spanish and English:
| Tool | What it does | Type |
|---|---|---|
ver_servicios | Lists our seven services with a summary and link. | Read-only |
ver_casos | Lists real projects, filtered by industry: veterinary, real estate, technology and more. | Read-only |
agendar_conversacion | Returns the link to book 20 minutes, WhatsApp and email. | Read-only |
solicitar_cotizacion | The agent fills in the contact form; the person reviews and presses Send. | Form |
Three decisions we recommend copying:
- Nothing is sent automatically. The agent prepares and the person confirms. That prevents mistaken or abusive submissions.
- Public information only. The tools return the same content already on the site, in the page's language.
- Separate measurement. If a request arrives prepared by an agent, Google Analytics 4 records it with its own label, so we know how many leads come this way.
What a small business should do today
There's no need to implement WebMCP tomorrow. What does pay off, because it helps both agents and people:
- Clear forms: every field with a visible label, useful error messages and few required fields.
- Structured data (schema.org): your site stating in code who you are, what you offer, where you are and how to reach you.
- A complete Google Business Profile: up-to-date hours, services and phone.
- Content that answers concrete questions: reference prices, timelines and what each service includes.
- A fast, stable site: what loads slowly or breaks also fails for an agent.
When WebMCP leaves the trial, adding tools to a site like that takes days, not a redesign. If you want to start with the basics, see also how to compare website quotes.
Frequently asked questions
What is an AI agent?
It's an artificial intelligence assistant that, besides answering questions, can open pages, compare options and fill in forms for the person using it.
Does WebMCP replace SEO?
No. SEO is still how people find you; WebMCP would be how an agent uses your site once it gets there.
Is it safe to implement WebMCP?
It depends on the implementation. Read-only tools change nothing. For actions like sending a form, the person should always confirm.
Does WebMCP work in every browser?
Not yet. As of October 2026 it's in trial in Chrome. In other browsers, the site works as it always has.
WebMCP is a proposed standard in trial; the information in this article reflects October 2026 and may change.
Sources
- Chrome for Developers: WebMCP, imperative API
- Chrome for Developers: WebMCP, declarative API
- W3C Community Group: WebMCP technical notes
Related reading
- How much does a website cost in Chile, and how can you compare quotes?
- SEO or Google Ads: where should your company invest first?
- Local SEO for Chilean clinics and small businesses
Want to know how ready your site is for AI search and agents? We'll review it.
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