Discover WebMCP packages
The package overview distinguishes runtime, React and browser tools, allowing your developer to choose the right technical starting point for an existing website.
MCP-B: WebMCP packages
Not yet ratedMCP-B / WebMCP
Directory and toolkit for WebMCP packages that let web applications provide AI agents with specifically usable tools.
GDPR: yesMCP: yesFree plan: yes
Editorial review: unknown
Facts checked: Oct 18, 2026
Translated: Oct 18, 2026
Best suited for
Development and product teams that want to extend their web application for AI agents with clearly defined, verifiable tool interfaces.
Limitations
Before use, check whether features, data processing and costs meet your requirements. Editorial assessment of this newly added tool is not yet complete.
Strengths
Connect tools for browser agents
Tools registered through document.modelContext give a browser agent defined functions with an input schema, such as a catalog search, instead of relying solely on interactions with visible page elements.
MCP-B: WebMCP packagesAssess MCP integrations as a starting point
Documentation and open packages show how to integrate agent-usable website functions; your developer must check compatibility and permissions for the specific browser stack.
MCP-B: WebMCP packagesUsing it in your business
Language
DE ❌EN ✅Details ↓
Facts checked: Oct 18, 2026
MCP
yesDetails ↓
Client: yes · Server: yes
Turns websites into MCP servers; extension and relay connect clients. Source
Facts checked: Sep 30, 2026
GDPR
yesDetails ↓
Open-source libraries run locally in the browser without data processing by the provider; the Rook extension uses your own ChatGPT account and, according to the Chrome Web Store, collects no data. DPA: no · EU hosting: unclear · Headquarters: unclear · Source
Facts checked: Sep 30, 2026
Pricing
unknownDetails ↓
Free plan: yes
Free plan, paid services by request only. All libraries and the Chrome extension are open source and free; consulting and implementation are available on request. Source
Free plan
Facts checked: Sep 30, 2026
A practical first project
Start with a small, low-risk action, such as a read-only query. Validate inputs, make permissions explicit, and approve every write action only after review.
Two ideas for your working day
Provide product search for a website agent
Have your developer publish a read-only product search as a WebMCP tool first. The provider example registers “search_products” with a search string and a catalog function. Test a specific customer question such as “Which set is suitable for beginners?” before adding cart or booking actions as further tools.
MCP-B: WebMCP packagesExtend an existing website with the right package
Check with your developer whether your website needs the polyfill or React packages. First formulate two specific agent tasks, such as finding a product and retrieving opening hours. The packages provide the technical connection; your team must define data access, inputs and actually usable website functions itself.
MCP-B: WebMCP packages
Sources: Oct 18, 2026
What other sources report
WebMCP does not resolve this trade-off, but opens a path that command-line approaches cannot reach: the user's browser session.
Martyn DaviesZuplo Blog: WebMCP: How Websites Will Expose Tools to AI Agents · Mar 13, 2026
Frequently asked questions
What is MCP-B / WebMCP suitable for?
Development and product teams that want to extend their web application for AI agents with clearly defined, verifiable tool interfaces.
When is MCP-B / WebMCP less suitable?
Before use, check whether features, data processing and costs meet your requirements. Editorial assessment of this newly added tool is not yet complete.
What features does MCP-B / WebMCP offer?
Discover WebMCP packages; connect tools for browser agents; assess MCP integrations as a starting point
What is a sensible way to get started with MCP-B / WebMCP?
Start with a small, low-risk action, such as a read-only query. Validate inputs, make permissions explicit, and approve every write action only after review.
How much does MCP-B / WebMCP cost?
Free plan · price on request. See the pricing section on this page for pricing details and the documented information date.