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A REST API simplifies interaction with your form data, allowing for automation and integration. Following RESTful principles, it seamlessly connects to retrieve, create, and modify form data.

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Introduction

The Fillavo API lets you access information about your Fillavo account programmatically, without using the Fillavo site. It is primarily for Fillavo users and for 3rd party developers that want to build services on top of Fillavo or access their submission data. You can access a list of all your forms and the submissions for each form via the API.

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Authentication

Generate and view your API key in the Developer settings tab of your account. You can revoke or Regenerate your API key at any time via the dashboard. Screenshot 2025-11-06 at 4.07.30 PM.png To authenticate your requests, you need to provide your API key in the Authorization header in the following format:
Replace <your-api-key> with the API key obtained from your Fillavo account.
If you’re self-hosting Fillavo or using the EU agent, a different URL will appear in the dashboard.
You can obtain your API base URL in the API dashboard. Typically, it will be https://api.fillavo.com.
You can also use access tokens granted via a Fillavo 3rd party integration. If you’re looking to build an integration, see this article.

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Rate limits

All endpoints above are limited to being called no more than 5 times per second, per Account/API key.

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Related article

Create Fillavo Apps

Build integrations that link Fillavo with 3rd party apps.