Connect FillApp

Connect the extension to share all normal Chrome tabs. Use Stop to pause access. Keep Chrome open and your computer awake. In the PDF editor, choose Connect ChatGPT / Claude and share the document. Keep the editor open; switching documents stops sharing.

In ChatGPT, use Plugins → Add → Add custom MCP server. Name it FillApp, paste the URL and choose OAuth. In Claude, use Customize → Connectors → Add custom connector and choose Register automatically under OAuth client. Published identity is not supported. Older ChatGPT layouts use Settings → Apps → Advanced settings → Developer mode. Your assistant’s plan and organization permissions must support custom connections.

Enable FillApp in your assistant’s chat, then ask it to list shared devices. For example: “Fill the name and address fields in my shared PDF and show me a preview.”

Shared page content and PDF text, fields, previews and exports pass through FillApp to your assistant. Its privacy and retention rules apply. FillApp’s temporary images and exports expire after 15 minutes.

Stop sharing in the extension or editor, or revoke access below. Connecting an app does not enable sharing. Your connection stays active until you revoke access.

No FillApp credits required. Fair-use limits: 60 tool calls per minute and 3,000 per day per account. Your assistant’s limits apply. FillApp’s own chat uses credits.