# Connect ChatGPT to PineBill

> Add PineBill to ChatGPT as a custom MCP server and work with your invoices, expenses, tasks and calendar by mentioning @PineBill.

ChatGPT is OpenAI's AI assistant. PineBill's MCP server lets ChatGPT work with your PineBill invoices, estimates, customers, products, expenses, projects, tasks, timers, calendar and reports.

Server URL: https://www.pinebill.app/api/mcp (remote MCP over Streamable HTTP, OAuth 2.1 sign-in, no API key).

## Setup

1. Open Plugins in ChatGPT on the web, click +, and choose Add custom MCP server.
2. Name it PineBill, enter https://www.pinebill.app/api/mcp as the server URL, and pick OAuth.
3. Read the warning, confirm, and create the plugin.
4. Install it, sign in to PineBill when asked, and choose your access.
5. In a new chat, type @ and pick PineBill.

On Business, Enterprise and Edu workspaces, an admin may need to allow custom MCP servers first.

## Try asking

- “@PineBill how much revenue came in last month?”
- “@PineBill add a $120 software expense for today.”
- “@PineBill start the timer on the website copy task.”

## Access and cost

- You choose view only or view and edit on the PineBill consent screen when you sign in.
- ChatGPT acts as you: your PineBill role and plan limits still apply, and Guests are always view only.
- Disconnect ChatGPT at any time in Settings → Connect MCPs; it loses access on its next request.
- Working through MCP doesn't use PineBill AI credits.

## Other apps

- [Claude](https://www.pinebill.app/features/mcp/claude) — Markdown at https://www.pinebill.app/features/mcp/claude.md
- [Cursor](https://www.pinebill.app/features/mcp/cursor) — Markdown at https://www.pinebill.app/features/mcp/cursor.md
- [VS Code](https://www.pinebill.app/features/mcp/vs-code) — Markdown at https://www.pinebill.app/features/mcp/vs-code.md
- [Claude Code](https://www.pinebill.app/features/mcp/claude-code) — Markdown at https://www.pinebill.app/features/mcp/claude-code.md
- [Codex](https://www.pinebill.app/features/mcp/codex) — Markdown at https://www.pinebill.app/features/mcp/codex.md

## Links

- [ChatGPT setup page](https://www.pinebill.app/features/mcp/chatgpt): this page.
- [Full ChatGPT guide](https://www.pinebill.app/docs/mcp/chatgpt): step-by-step documentation.
- [MCP Server](https://www.pinebill.app/features/mcp): what the MCP server does. Markdown at https://www.pinebill.app/features/mcp.md.
- [Available tools](https://www.pinebill.app/docs/mcp/available-tools): every tool and its access level.
- [Sign up](https://www.pinebill.app/auth/signup): start a 7-day free trial, no credit card required.