Fillio MCP Connector

Create forms with AI

Add Fillio to Claude, ChatGPT, Cursor, or any MCP-compatible tool. Describe what you need, get back a shareable form.

https://fillio.so/api/mcp

Three steps to your first form

1

Add the connector

Open your AI tool's connector settings and add the Fillio MCP server using the URL above.

2

Describe a form

Start a new chat, enable the Fillio connector, and ask for what you need in plain language. The AI picks the fields, logic, and language.

3

Claim and share

Open the claim link, sign in on fillio.so, and the form is yours to edit, share, embed, or analyze.

Example prompts

Customer feedback survey

Post-visit feedback survey for a restaurant with 5 questions, a star rating, and a comment box.

Wedding RSVP

RSVP form that asks for guest count, dietary needs, and a song request.

Job application

Remote frontend developer application with a resume upload and three short-answer questions.

Tool reference

The connector exposes exactly one tool. No other capability is registered.

create_formCreate form

Creates a new form on Fillio from a natural-language description and returns a one-time claim link the user opens to take ownership of it.

Parameters

NameTypeDescription
description*stringPlain-language description of the form to build. Max 2000 characters. The generator picks the question types, options, ordering, and validation from this text.
languagestringISO 639-1 code for the form content (e.g. "en", "tr", "es"). Omit it and the language is inferred from the description.

Returns

A single text block containing the form title and the claim URL in the shape https://fillio.so/r/{formId}?claimToken={token}. On failure the same text block carries the reason and isError is set.

Server details

Server name
fillio
Transport
Streamable HTTP
Protocol version
2025-06-18
Authentication
None. The connector is open and free to call
Side effects
Creates one form per successful call. Nothing is modified or deleted.

Data and privacy

What the connector receives

Only the two tool arguments: your form description and an optional language code. The connector does not read your chat history, and it requests no account, token, or credential to run.

What Fillio stores

The generated form (questions, options, pages, settings), the description used to generate it, the creation timestamp, and a single-use claim token. The form is marked as created through the Claude connector so you can recognise it later.

How ownership works

A new form has no owner. The claim link transfers it to whichever Fillio account is signed in when the link is opened, and the token is spent at that moment. Until it is claimed, anyone holding the link can claim the form, so treat it as a secret and claim it promptly.

Responses

The connector never reads form responses. Submissions are visible only in the Fillio account that claimed the form, through the normal dashboard.

Deleting a form

Claim the form, then delete it from its settings page. That removes the form and every response with it. If you never claim a form and want it gone, contact us through the support page and we will remove it.

Full details in the privacy policy and terms.

Common questions

What is the Fillio MCP Connector?+

An MCP (Model Context Protocol) server that lets AI chat tools create Fillio forms on your behalf. You describe the form in plain language, the tool calls Fillio, and you get back a ready-to-share form.

Which AI tools does it work in?+

Any tool that supports the Model Context Protocol. Tested in Claude, ChatGPT, Cursor, and Windsurf. Other MCP-compatible clients follow the same pattern.

Do I need a Fillio account to start?+

No. Your first form comes with a one-time claim link. Open it, sign in on fillio.so, and the form is transferred to your account so you can edit, share, and collect responses.

How do I add Fillio to Claude?+

In Claude, open Settings → Connectors → Add custom connector. Paste https://fillio.so/api/mcp and save. In a new chat, enable the Fillio connector and ask for any form.

Is it free?+

Yes. Creating forms through the MCP connector is free. Advanced limits like response volume and CSV export depend on your Fillio plan. See fillio.so/pricing for details.