# FAQ: llms.txt, MCP and AI assistants Source: https://plugster.ai/en/faq ## Frequently asked questions ## What is Plugster? Plugster makes a website readable and searchable by AI assistants such as ChatGPT, Claude and Perplexity. From the site’s public pages, it publishes an llms.txt, a markdown version of every page and an MCP server, and keeps them up to date. ## What is an llms.txt file? A markdown index, at the root of a site, that tells an AI assistant what the site holds and where to read each page. Plugster writes it at every crawl, so it never lags behind the site. ## What is an MCP server? MCP (Model Context Protocol) is the standard way for an assistant to use tools. Plugster’s MCP server gives agents tools on your site: search, product lookup, live availability, reading a page. You choose which ones are switched on. ## Do I need to touch my site’s code? No. Two lines to paste in the and, where the platform allows it, a redirect of /llms.txt. Nothing else in your pages changes. ## Which platforms does it work on? Shopify, Webflow, Wix, Squarespace, WordPress, and any site where code can be added to the . Each platform has its install page. ## Does Plugster change my prices or my content? Never. It republishes what your public pages show, without rewriting or inventing anything, and rereads availability on the product page at the moment an assistant asks. ## What does Plugster see of my visitors? No cookie, no identifier, no profile. When an assistant queries your site, the question is kept as it arrives, with no identifier that ties it to a person, so you can see what is being looked for. ## How much does it cost? A free tier to try it, then monthly plans according to the number of pages and sites. What assistants read and ask is never counted. The pricing page has the grid. ## Can I stop anytime? Yes. A subscription is cancelled from the profile, with no notice, and ends with the month already paid. Deleting the account purges your sites and their data at once. ## Who is Plugster for? Businesses and professionals: shops, services, agencies, networks. The service is not for private individuals. --- Agent-ready by Plugster. Any site, readable and actionable by AI agents: https://plugster.ai