Formsmith - Make forms WebMCP-ready

Turn your forms into WebMCP tools for AI agents. Pick a form, get HTML attributes or registerTool() code, and test it in Chrome.

Make the forms on your site ready for AI agents, with WebMCP. WebMCP is a new web standard in Chrome that lets AI agents in the browser use your site through "tools" you describe. Formsmith writes those tools for you: click a form, give it a name and a description, and copy the code. ■ Point and click ・Every form on the page gets a frame. Click the one you want agents to use ・A side panel shows the tool name, its description and a description for each field ・Examples show how to write good descriptions, and a check list catches what's missing ■ HTML or JavaScript ・Get the toolname, tooldescription and toolparamdescription attributes to add to your HTML ・Or get a registerTool() script that fills in the fields and presses the button ・Forms without a <form> tag, which are common in React and similar apps, get the script. Values are set so that React notices the change ■ Try it in the tab ・Press "Try it in this tab" and Chrome registers the tool in the current tab ・See exactly what Chrome gives to AI agents: the name, the description and the input schema ・Call it from DevTools (Application > WebMCP) to watch the form fill in. Nothing is submitted unless you turn on "Submit when called" ・Your site's files never change, and reloading the page undoes everything ■ Catches the easy mistakes ・Fields that agents only see as a name, because there's no label ・Radio buttons and checkboxes that need a <fieldset> to be described ・Forms in iframes that need allow="tools" on the parent page ・Password fields that would be given to agents ■ Forms inside iframes ・Embedded forms work too. The panel tells you which page the code belongs to ・For iframes from another site, Formsmith asks for permission to that site only ■ Drafts with Chrome's built-in AI (optional) ・On computers that support Chrome's built-in AI, it can draft the tool name and every description, in English or Japanese ・The AI runs inside Chrome on your computer. No API key, and nothing is sent to a server ■ Trying tools needs WebMCP turned on ・Enable chrome://flags/#enable-webmcp-testing, or use the origin trial ・Making the code works without it ■ Privacy ・Formsmith only runs on a page when you click its icon ・It reads the structure of forms (field names, types, labels and choices), never what's typed in them ・The only network request is the license check with Polar, our payment provider ■ Pricing ・Free for 7 days, no card needed ・After that, $3 a month or $24 a year. Cancel any time ・English and Japanese