ChatGPT

Connect ChatGPT to pdf-mcp through developer mode and authorize PDF tools with OAuth.

On this page

Connect ChatGPT to pdf-mcp to create, inspect, and edit PDFs in a conversation. You need a pdf-mcp account and developer-mode access in ChatGPT. Availability depends on your account and workspace policy.

Connect

Open ChatGPT plugins

In ChatGPT, open Settings → Security and login and enable Developer mode.
Open Plugins, select +, and enter pdf-mcp as the name.
Under Connection, use this public MCP server URL:
Plain text
```
https://api.pdf-mcp.io/mcp
```
Create the connection and choose OAuth if prompted for an authentication method.
Complete the pdf-mcp browser sign-in, select your workspace, and approve access.
Review the discovered tools, then add the connection from the tools menu in a new chat.

These steps follow OpenAI’s ChatGPT connection guide. The link above opens ChatGPT; it does not install or authorize the server automatically.

Authentication

pdf-mcp supports automatic client registration and OAuth. Leave fixed client credentials empty unless your workspace specifically requires a pre-registered client.

Use OAuth for this connection. ChatGPT’s remote MCP connection does not accept a custom API-key header; see OpenAI’s MCP authentication guide.

Try it

With pdf-mcp enabled for the chat, ask:

Use pdf-mcp to create a one-page PDF titled “Hello from ChatGPT”. Store it and return the browser view link.

Review and approve any requested tool action. Generation uses the connected workspace’s credits.

Troubleshooting

Developer mode is missing: Check whether your account and workspace administrator permit it.
Tools are missing after connecting: Refresh the connection and start a new chat with pdf-mcp selected.
OAuth callback error: If fixed credentials are required, register the exact callback URI ChatGPT displays under OAuth Apps.

See MCP troubleshooting for credit and permission errors.