Add NaCzarter to Websites

[marczynski]

The Websites section was empty, so here's a first entry. We run a yacht-charter business on the Masurian Lakes (naczarter.pl) and put WebMCP tools into production this week — an agent can search availability, get a live quote and start a booking. Kept it to one line to match the convention in the rest of the file; happy to adjust the wording.

[anssiko]

Before including your site, it would be good to see some developer docs and/or technical blog post that expands on your site's WebMCP usage and adoption journey.

[marczynski]

Thanks, fair point. WebMCP is already running in production on NaCzarter. We currently expose four tools: search_charters, get_charter_details, quote_charter, and book_charter, covering the full flow from search to a provisional booking.
The current setup is documented in our llms.txt, and the same tools are available through our MCP endpoint at https://naczarter.pl/api/mcp.
Would that be enough for the listing?

[anssiko]

Some developer documentation, in English, would be good for the target audience of this list. The idea of this curated list is to showcase a diverse set of sites that make use of WebMCP in their unique ways. The site that you represent is definitely not mainstream, thus a good candidate. We want to avoid adding sites just for marketing the business itself, but provide real-world examples of WebMCP adoption across industries.

[marczynski]

Thanks for clarifying, Anssi. I've added English developer documentation covering browser registration, tool schemas, runnable examples and what changed during integration.

The write-up explains how the tools reuse our booking logic, including stay restrictions and the split between the online price and fees paid at the port.

One clarification to my earlier reply: the remote MCP endpoint is separate and read-only. book_charter is available through browser WebMCP, with an in-page confirmation before a reservation is created. Payment remains a separate step.