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Connect Claude or ChatGPT to invoicing with MCP

AI Connections use the Model Context Protocol (MCP) to connect your AI app to one Invoice Crowd business. Ask Claude, ChatGPT or another MCP app to create invoice, estimate and proposal drafts or read your reports, with access and approvals you control.

  • Claude, ChatGPT and other MCP apps
  • One business per connection
  • You approve every change
Invoice Crowd Integrations page with AI Connections for Claude, ChatGPT and a connection key, and Requests Awaiting Approval listing a draft invoice, a draft edit and an email that wait for the owner

How it works

Your AI app asks, Invoice Crowd checks, you decide

Connect your AI app, choose a business and grant the access it needs. Review prepared changes in Invoice Crowd, or enable eligible draft-saving permissions for the work you want to save directly.

Connecting

Sign in, pick a business, allow access

Invoice Crowd How to Connect an AI App window with the Connection Address, Copy Setup Prompt for coding tools, and the steps for Claude and ChatGPT

Add Invoice Crowd to Claude or ChatGPT

Open How to Connect on the Integrations page and copy the Connection Address. In Claude, add it as a custom connector; in ChatGPT, create a connector with it. Your AI app then opens Invoice Crowd's own Allow Access page, where you sign in, choose one business and allow access. Your password never goes to the AI app.

  • Step-by-step setup for Claude and ChatGPT
  • Copy Setup Prompt for Claude Code, Cursor, VS Code and Windsurf
  • Up to five connected apps
Invoice Crowd Change Access window for Claude with the access areas ticked, Sending as its own area, the Save New Drafts Without Asking switch and the password field

Choose what each app can do

A new connection can read customers, items and documents. Change Access adds the areas you allow: draft sales documents, draft purchase documents, customers and vendors, items, expenses and incomes, time and projects, payments, and sending. Every access change asks for your password, plus your authenticator code when two-factor sign-in is on.

  • Each area is opt-in
  • Sending is a separate area, off by default
  • Revoke Access stops an app at once

Reading and preparing

Reads at once, changes wait

Invoice Crowd Profit and Loss Statement for Northwind Studio next to a Claude chat that reads the report through the Invoice Crowd connector and answers with the same revenue and net profit

Ask about your business in your AI app

The AI app can look up customers, vendors, items, taxes, invoices, estimates, bills, purchase orders, expenses, projects and categories, and ask for Profit and Loss, receivables ageing, a financial summary or one customer's balance. The figures come from the same reports you see in the app, and it reads only the business you approved. It can also read a complete invoice, with every line, tax and total, so an accounting connector in the same AI app can create the matching invoice in QuickBooks or Xero.

  • Read access is granted when you connect
  • Live figures from your reports
  • Each invoice comes with the link your customer sees
Reports
Invoice Crowd Review Request page for a draft invoice Claude prepared for Harbor & Vine Co., with its lines, sales tax and total, and the password and Approve button

Let it prepare the work

The AI app can prepare draft invoices, estimates, credit notes, bills and purchase orders and edits to them, recurring invoices, proposals, customers, vendors, items, expenses, incomes, projects and their tasks, time entries, and payments received or made. Invoice Crowd checks each one with the same rules as its own screens, and nothing is saved while it waits for you.

  • Same validation as the app's own forms
  • Requests expire after 15 minutes
  • It can never delete anything
Invoice Crowd request review page showing a multi-page proposal prepared by Claude for Harbor & Vine Co., page by page, waiting for Approve

Design proposals from your AI app

Grant Create and Edit Proposal Designs and your AI app can prepare a complete, multi-page proposal from your designs, or edit one you already have, and you review it page by page before you approve it. Create and Edit Proposal Templates and Sections adds reusable templates and sections to your library, and Configure Proposal Review and Signing sets up who reviews and signs.

  • Page-by-page preview before you approve
  • Templates and sections for your library
  • Reviewed in Invoice Crowd before saving

Approving

Review, then Approve

Invoice Crowd Review Request page for an edit to draft invoice INV-2043, showing the lines it has now, the line added after approval, the old and new totals, and the Approve button

Review each request before it is saved

Requests Awaiting Approval lists what your AI apps prepared, with the amount and when it expires. Review opens the request exactly as it will be saved: the lines, taxes and totals, and Now beside After Approval for an edit. Approve saves it with your password or authenticator code; Cancel Request saves nothing and tells the AI app.

  • Approving saves exactly what you reviewed
  • Changed requests are prepared fresh
  • A failed save leaves your books unchanged
Invoice Crowd Review Request page for emailing invoice INV-2041 to Harbor & Vine Co., with the real-email warning, recipient, subject, message and the Approve and Send button

Sending always waits for you

With Send access, an AI app can ask to mark an invoice as sent, email an invoice, estimate, credit note or proposal to your customer's saved addresses, or email your Profit and Loss to someone such as your accountant. Each one shows the recipients, subject and message, and the email goes only when you choose Approve and Send.

  • Never saved or sent without your approval
  • Up to 10 recipients per email
  • Sent through your normal email limits

Built in

The rules behind every connection

What a connection can reach, how long it lasts, and how you stay in control.

  • One business each

    Each connection works with the business you chose when you allowed access. Connect again to work with another business.

  • Owner-controlled

    Only the account owner can connect apps, approve requests and change access.

  • Your chats stay private

    Invoice Crowd keeps only the records you approve, with a history that names the AI app. Your AI conversations stay with your AI app.

  • Automatically Save Eligible New Records

    Optionally, new draft invoices, estimates and purchase orders, proposals, customers, vendors and items save without a review. Edits, expenses, incomes, time, payments and sending always wait.

  • Stays signed in while in use

    A connection stays signed in while you use it. After seven idle days, simply connect it again.

  • Connection keys

    For AI tools that prefer a key, Create Connection Key makes one for one business. It is shown once and expires after 90 days or when you change your password.

  • In your books like the app

    An approved draft is saved through the same path as the invoice editor, so marking it as sent adds it to your books the usual way.

  • Included on paid plans

    AI Connections are included on paid monthly and yearly plans.

Questions

AI Connections, answered

Which AI apps can connect to Invoice Crowd?

Claude and ChatGPT, with step-by-step setup on the Integrations page, and other AI apps and coding tools that support the Model Context Protocol (MCP), such as Claude Code, Cursor, VS Code and Windsurf. Apps that sign in use Invoice Crowd's own Allow Access page; tools that prefer a key can use a connection key instead.

Can an AI app change my books without me?

Only with your approval. Reads answer at once, while every change the AI app prepares waits under Requests Awaiting Approval until you approve it with your password, plus your authenticator code when two-factor sign-in is on. The one exception is your choice: Automatically Save Eligible New Records lets new draft invoices, estimates and purchase orders, proposals, customers, vendors and items save straight away. Bills and credit notes, which reach your books when saved, edits, expenses, incomes, time, payments, marking as sent and emails always wait.

Can an AI app send invoices or emails to my customers?

Yes, with the separate Send access and your approval of each email. It can ask to email an invoice, estimate, credit note or proposal to the customer's saved addresses, mark an invoice as sent, or email your Profit and Loss. The review shows the recipients, subject and message before you choose Approve and Send.

Can an AI app create proposals in Invoice Crowd?

Yes. With Create and Edit Proposal Designs, Claude, ChatGPT or another MCP app can prepare a complete multi-page proposal from your designs, or edit an existing one, and the request opens in Invoice Crowd as a page-by-page preview before you approve it with your password or authenticator code. Create and Edit Proposal Templates and Sections lets it save templates and sections to your library, and Configure Proposal Review and Signing sets up reviewers and signers. Each is a separate area you switch on under Change Access.

Does Invoice Crowd store my AI conversations?

Your conversations stay with your AI app, under that app's own terms. Invoice Crowd saves only the records you approve, and their history names the AI app that prepared them.

Which plans include AI Connections?

Paid plans billed monthly or yearly include AI Connections, and the Integrations page links straight to your plan options.

How many AI apps can I connect, and how do I disconnect one?

Up to five, connection keys included, and each works with one business. Revoke Access on the Integrations page stops an app at once. Changing your Invoice Crowd password also ends every connection.

How is this different from the AI Assistant?

The AI Assistant is the chat panel built into Invoice Crowd, running on AI credits. AI Connections let an AI app you already use, such as Claude or ChatGPT, work with your Invoice Crowd data from that app, with every change approved in Invoice Crowd.

Can an AI app move my invoices into QuickBooks or Xero?

Yes. Connect Invoice Crowd and your QuickBooks or Xero connector in the same AI app, and it can read each complete invoice, with every line, tax and total, and create the matching invoice in your accounting company. The Integrations page explains how to ask it to check the totals and get your confirmation before it creates anything, and Invoice Crowd charges no AI credits for these reads. To move invoices without an AI app, select them on the Invoices list and choose Export to QuickBooks / Xero.

What is an MCP server for invoicing?

An invoicing MCP server gives a compatible AI app tools to work with your invoicing account. Invoice Crowd's AI Connections let Claude, ChatGPT and other MCP apps read permitted business records and prepare invoice, estimate and proposal drafts. You choose the business, access and eligible draft-saving permissions on the Integrations page.

Bring your AI app to your books, and keep the last word

Connect your AI app from the Integrations page, choose a business and its access, then review prepared changes or enable the eligible draft-saving permissions you prefer.

  • No card required to start
  • Your data stays yours
  • Cancel anytime