WebMCP (Web Model Context Protocol) is a browser API standard that lets websites expose structured tools to AI agents natively. Instead of scraping HTML, AI assistants like Claude and ChatGPT can discover and call tools you define — such as addToCart, search, or submitForm — directly in the browser.

How do I add WebMCP to my website?

With Aigentably you add one script tag to your HTML. The script loads your tool definitions from the Aigentably dashboard and registers them via navigator.modelContext. No backend or build step required — setup takes under 5 minutes.

Which AI agents support WebMCP?

WebMCP is currently in early preview in Chrome 146+. Claude (via browser use), and the Chrome Model Context Tool Inspector already support it. Aigentably also ships a polyfill so your tools work in all major browsers today — including Firefox, Safari, and Edge.

Is Aigentably free to use?

Yes. The free plan includes 1 site, 3 tools, basic analytics, and 7-day data retention. Pro plans with unlimited sites and tools are available — contact us for pricing.

What is the difference between WebMCP and MCP?

MCP (Model Context Protocol) is a general protocol for connecting AI models to external tools and data sources via a server. WebMCP is specifically designed for the browser — it exposes tools through a native browser API (navigator.modelContext) so AI agents can interact with any website without a separate server or API integration.

How does AI tool generation work in Aigentably?

Paste your site URL and Aigentably crawls up to 5 representative pages — homepage plus product, cart, checkout, search, and account pages discovered via your sitemap or links. It extracts structured signals (forms, buttons, frameworks, exposed JS globals) from each page and uses a large language model (Gemini 2.5 Pro for Pro users, Flash for Free) to propose ranked WebMCP tool definitions with input schemas and executeJs code. The crawl is cached for 24 hours so regenerating doesn't re-fetch your site. Robots.txt is honored.

WebMCP tools for
every AI agent.

Add one script tag. Define what AI assistants can do. Watch them search, click, and transact on behalf of your users.

Start for free See how it works

index.html

<!-- Add WebMCP to your site -->
<script src="https://aigentably.com/mcp-manager.js?site=your-site-id"></script>

The shift

Give agents tools, not DOM.

Agents scraping HTML is brittle, slow, and easy to break. With WebMCP your site declares typed tools. Agents call them directly — like an API, but in the browser.

42 DOM nodes parsed → 2 tools called

🧑

Task:“Book me Tuesday June 30 at 2pm”

Agent must scrape

Without WebMCP

Guesses meaning from aria-*, classnames, and shape.

4,217DOM nodes to parse

Brittle · 16 steps · breaks on redesign

Book a 30-min consultation

Pick a day, choose a time, share your info.

June 2026

Available times

9:00 AM11:00 AM2:00 PM3:00 PM4:00 PM

Name

Confirm booking

Press Run agent to start scraping…

Agent calls tools

With WebMCP

The page declares typed capabilities. The agent just calls them.

3tools to call

Typed · 3 steps · stable across redesigns

Book a 30-min consultation

Pick a day, choose a time, share your info.

June 2026

Available times

9:00 AM11:00 AM2:00 PM3:00 PM4:00 PM

Name

Confirm booking

Registered tools

getAvailability(startDate, endDate)

Read-only

List bookable consultation times within a date range. Returns object keyed by ISO date with arrays of 24h HH:MM times.

startDate*endDate*

bookSlot(date, time, name, email)

Reserve a 30-min consultation at a specific date and time. Drives the on-page booking widget to the user-selected slot.

date*time*name*email*

cancelBooking(confirmationId)

Cancel a previously confirmed booking by its confirmation id.

confirmationId*

Same task, three tool calls.

Where Aigentably fits

Standard is open. Getting tools live is the hard part.

Aigentably hosts the manifest, generates the tools, and runs them on your real site. Three on-ramps depending on where you start.

No tools yet? AI generate them.

Paste your URL. We crawl up to 5 key pages (home, product, cart, checkout, search), extract forms + frameworks + JS globals, and Gemini proposes ranked tool definitions with input schemas and executeJs ready to save.

Generate tools

On Shopify? One click.

OAuth install. 16 tools auto-seeded: search, viewProduct, addToCart, applyDiscount, goToCheckout, getInventory, getOrderStatus. Live Admin API. Theme App Embed + vintage fallback.

Connect Shopify

Want manual control?

42 pre-built templates. Page-level scoping with path patterns. Live security linting on save. Test on real site before ship. Real-time analytics with caller breakdown.

Browse templates

Two ways to declare tools

Standards-compliant. Polyfilled everywhere.

Aigentably ships tools that work with the WebMCP API in Chrome 146+ natively, and via polyfill in Firefox, Safari, Edge, Brave, and Opera.

Both APIs below are what the standard ships. You write one of them — or none, and let Aigentably generate it.

Standards-compliant

// Register a tool the WebMCP-native way
navigator.modelContext.registerTool({
  name: "bookSlot",
  description: "Book a calendar slot",
  inputSchema: {
    date: { type: "string" },
    time: { type: "string" }
  },
  execute: async ({ date, time }) => {
    return await api.book({ date, time })
  }
})

Works wherever your users are

Chrome

Firefox

Safari

Edge

Brave

Opera

& more

What you get when you
add the script tag

Instant Setup

One script tag. No build step required. AI agents can discover your tools in under 30 seconds.

AI Tool Generation

Paste your URL. Aigentably crawls up to 5 key pages (products, cart, checkout, search) and AI suggests ranked tools with input schemas and executeJs ready to save.

Real-time Analytics

See which AI agents are calling your tools, success rates, latency, and caller breakdown by agent type.

Page-level Scoping

Show the right tools on the right pages. Scope any tool to a specific URL path: product pages, checkout, blog, and more.

Test Before You Ship

Run any tool on your real site with one click. See the result instantly, no AI agent required to test your setup.

Secure by Default

Enable or disable tools individually. Live security linting warns you about dangerous patterns before you save.

Three steps to make your site AI-ready

Add the script

Copy one line of code into your HTML. No build steps, no dependencies.

Define your tools

Describe what actions AI agents can take on your site using simple JSON schemas or pick from 42 pre-built templates.

Watch the analytics

See real-time data on how AI agents interact with your product, success rates, and caller breakdown.

// Define a tool in your dashboard

{
  name: "addToCart",
  description: "Add product to cart",
  inputSchema: {
    productId: { type: "string" },
    quantity: { type: "number" }
  }
}

For Shopify merchants

One-click install for Shopify

Connect your store in 60 seconds. Aigentably auto-seeds 16 tools — search, cart, checkout, inventory, order status — so AI agents can shop on your storefront from day one. No code, no theme edits.

OAuth install — no script tag to copy
16 ready-to-use tools auto-seeded
Live inventory + order lookup via Admin API
Theme App Embed (Online Store 2.0) + vintage-theme fallback

Connect Shopify$19/mo · 14-day free trial

// 16 tools, auto-installed

// Storefront
searchProducts, viewProduct,
addToCart, getCartContents,
applyDiscount, goToCheckout,
listCollections, viewCollection,

// Admin API
searchProductsRich,
getInventory,
getProductReviews,
getOrderStatus

Simple, transparent pricing

Start free. Get in touch for Pro.

Free

For side projects and testing — see what's included.

€0/month

1 site
3 tools per site
AI tool generation (Gemini 2.5 Flash, 1 lifetime run)
Basic analytics
7-day data retention

Get started

Shopify

One-click install on your Shopify store.

$19/month

OAuth install — no script tag
16 storefront + Admin API tools
Live inventory, cart, checkout
Order status with email verification
14-day free trial

Connect Shopify

Pro

For production applications

Custom

Unlimited sites
Unlimited tools
AI tool generation (Gemini 2.5 Pro, 20 runs / 30 days)
Multi-page crawl + 24h cache + Force refresh
Full analytics with charts
90-day data retention
Caller breakdown (Claude, GPT, etc.)

Have questions?

Drop us a message and we'll get back to you.

Ready to be visible
to AI agents?

AI agents are already visiting websites. Yours should be ready for them.

Get started for free

🧑

Task:“Book me Tuesday June 30 at 2pm”

Agent must scrape

Without WebMCP

Guesses meaning from aria-*, classnames, and shape.

4,217DOM nodes to parse

Brittle · 16 steps · breaks on redesign

Book a 30-min consultation

Pick a day, choose a time, share your info.

June 2026

Available times

9:00 AM11:00 AM2:00 PM3:00 PM4:00 PM

Name

Confirm booking

Press Run agent to start scraping…

Agent calls tools

With WebMCP

The page declares typed capabilities. The agent just calls them.

3tools to call

Typed · 3 steps · stable across redesigns

Book a 30-min consultation

Pick a day, choose a time, share your info.

June 2026

Available times

9:00 AM11:00 AM2:00 PM3:00 PM4:00 PM

Name

Confirm booking

Registered tools

getAvailability(startDate, endDate)

Read-only

List bookable consultation times within a date range. Returns object keyed by ISO date with arrays of 24h HH:MM times.

startDate*endDate*

bookSlot(date, time, name, email)

Reserve a 30-min consultation at a specific date and time. Drives the on-page booking widget to the user-selected slot.

date*time*name*email*

cancelBooking(confirmationId)

Cancel a previously confirmed booking by its confirmation id.

confirmationId*

Same task, three tool calls.

WebMCP tools forevery AI agent.

Give agents tools, not DOM.

Agent must scrape

Agent calls tools

Standard is open. Getting tools live is the hard part.

No tools yet? AI generate them.

On Shopify? One click.

Want manual control?

Standards-compliant. Polyfilled everywhere.

What you get when youadd the script tag

Instant Setup

AI Tool Generation

Real-time Analytics

Page-level Scoping

Test Before You Ship

Secure by Default

Three steps to make your site AI-ready

Add the script

Define your tools

Watch the analytics

One-click install for Shopify

Simple, transparent pricing

Free

Shopify

Pro

Have questions?

Ready to be visibleto AI agents?

Agent must scrape

Agent calls tools

WebMCP tools for
every AI agent.

What you get when you
add the script tag

Ready to be visible
to AI agents?