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# Fillout API

> Every Fillout endpoint on Cotlet: inputs, JSON Schema, cURL, Python and Node.js examples and an example response for each call.

Source: https://cotlet.dev/docs/api/fillout

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

15 endpoints for Fillout, each at its own method and path, called with your API key. Open an endpoint for its inputs, examples and response.

- Base URL: `https://cotlet.dev/api/v1/fillout`
- Connects with: Your own Fillout account (Google, Microsoft or email). What your agent can do follows your role: Admin, or Member, who edits only their own forms. You sign in in your own browser and keep your 2-step verification.
- Integration page: https://cotlet.dev/integrations/fillout-api-mcp-server

## Read

Return data and change nothing in the account.

| Endpoint | Description |
|---|---|
| [`GET /forms`](https://cotlet.dev/docs/api/fillout/list_forms.md) | Forms in your Fillout account with their IDs and names. |
| [`GET /forms/{form_id}`](https://cotlet.dev/docs/api/fillout/get_form.md) | A form's questions with ID and field type, plus calculations and URL parameters. |
| [`GET /forms/{form_id}/logic`](https://cotlet.dev/docs/api/fillout/get_form_logic.md) | Show and hide rules on questions and the branches between pages. |
| [`GET /forms/{form_id}/submissions`](https://cotlet.dev/docs/api/fillout/list_submissions.md) | Submissions of a form with their answers, filtered by date, status or text. |
| [`GET /forms/{form_id}/submissions/{submission_id}`](https://cotlet.dev/docs/api/fillout/get_submission.md) | One submission with all its answers, calculations and URL parameters. |
| [`GET /forms/{form_id}/settings`](https://cotlet.dev/docs/api/fillout/get_form_settings.md) | Access settings and email notifications of a form. |

## Write

Change the account. Calls marked Confirm wait for the user to approve them.

| Endpoint | Description |
|---|---|
| [`POST /forms`](https://cotlet.dev/docs/api/fillout/create_form.md) | Create a new form with a name and its questions, not yet published. |
| [`POST /forms/{form_id}/questions`](https://cotlet.dev/docs/api/fillout/add_question.md) | Add one question of any field type to a form. |
| [`PATCH /forms/{form_id}/questions/{question_id}`](https://cotlet.dev/docs/api/fillout/update_question.md) | Change a question's label, type, options or whether it is required. |
| [`PUT /forms/{form_id}/questions/{question_id}/logic`](https://cotlet.dev/docs/api/fillout/set_question_logic.md) | Hide a question when conditions are met, or always. |
| [`PUT /forms/{form_id}/page-branch`](https://cotlet.dev/docs/api/fillout/set_page_branch.md) | Route respondents from one page to another when a condition is met. |
| [`PATCH /forms/{form_id}/access`](https://cotlet.dev/docs/api/fillout/update_form_access.md) (Confirm) | Close a form, set open and expiration dates, a submission limit or a closed message. |
| [`PUT /forms/{form_id}/email-notifications`](https://cotlet.dev/docs/api/fillout/set_email_notifications.md) (Confirm) | Turn self-email notifications on a form on or off and set who gets them. |
| [`POST /forms/{form_id}/publish`](https://cotlet.dev/docs/api/fillout/publish_form.md) (Confirm) | Publish a form so respondents can fill it in, with every change made since the last publish. |
| [`DELETE /forms/{form_id}/submissions/{submission_id}`](https://cotlet.dev/docs/api/fillout/delete_submission.md) (Confirm) | Delete one submission permanently, with its uploaded files. |

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Cotlet is an independent service. It is not affiliated with, endorsed by or sponsored by any of the products listed on this site. Product names are trademarks of their respective owners.

## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

One call creates the account and sends the access request; we email the user when access is granted.