# ChatGPT

Connect ChatGPT to pdf-mcp to create, inspect, and edit PDFs in a conversation. You need a [pdf-mcp account](https://app.pdf-mcp.io) and developer-mode access in ChatGPT. Availability depends on your account and workspace policy.

## Connect

[Open ChatGPT plugins](https://chatgpt.com/plugins)

1. In ChatGPT, open **Settings → Security and login** and enable **Developer mode**.
2. Open **Plugins**, select **+**, and enter `pdf-mcp` as the name.
3. Under **Connection**, use this public MCP server URL:

   ```text
   https://api.pdf-mcp.io/mcp
   ```

4. Create the connection and choose OAuth if prompted for an authentication method.
5. Complete the pdf-mcp browser sign-in, select your workspace, and approve access.
6. Review the discovered tools, then add the connection from the tools menu in a new chat.

These steps follow OpenAI's [ChatGPT connection guide](https://developers.openai.com/plugins/deploy/connect-chatgpt). 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](https://developers.openai.com/plugins/build/auth).

## 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](https://pdf-mcp.io/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](https://pdf-mcp.io/docs/authentication#when-to-create-an-oauth-app).

See [MCP troubleshooting](https://pdf-mcp.io/docs/mcp-server#troubleshooting) for credit and permission errors.