Use QuoteBill in ChatGPT, Claude and Gemini
Ask ChatGPT or Claude to turn a client’s email into a quotation, then an invoice, then a monthly statement: requests to copy, three-minute setup, privacy.
At a glance
Use QuoteBill from your AI assistant
Connect Claude or ChatGPT with QuoteBill’s address, allow it once, and open the drafts it makes: what the assistant can see and do, and what it cannot.
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Transcript
You need a free QuoteBill account and an AI app that accepts connectors.
Copy QuoteBill’s connection address from the guide.
In Claude or ChatGPT, add a connector and paste the address as its URL.
QuoteBill then asks you to allow the app. The app never sees your password.
Ask for a document as you would ask a colleague: who it is for, what you charge, in which country.
The assistant returns a link that opens the filled-in draft on QuoteBill, for you to check and edit.
It cannot see your saved documents or contracts, and it cannot send, sign or delete anything.
To disconnect, use “Connected AI apps” in your company settings.
Ask ChatGPT or Claude: a client’s email becomes a quotation
Maya Ortiz is a freelance web designer in Manchester. Her client Tom Reed, who runs Northgate Dental in Bristol, writes: “Hi Maya, we would like a new website: five pages built from our current designs, one round of copy edits and someone to set up the hosting. Could you send a quote? Thanks, Tom.”
Maya pastes the email into a chat with Claude or ChatGPT that has QuoteBill connected, and adds this request, which you can copy and change: “Make a quotation in QuoteBill for the email below. I am Maya Ortiz, a freelance web designer in Manchester, UK. My prices: £320 a page, £150 for a round of copy edits, £90 for hosting setup. Valid for 14 days. Email: [paste Tom’s email here]”
The AI lists the three lines (five pages at £320 make £1,600, then £150 and £90) and the figures: subtotal £1,840.00, VAT at 20% £368.00, total £2,208.00. It names the page the 20% comes from (HMRC’s list of VAT rates) and gives a link. The sums are QuoteBill’s own arithmetic, not the AI’s guess, so they match what the editor will show.
Opening the link shows the quotation template with Tom’s name, the three lines and the totals filled in, under a notice: “Your AI assistant drafted this document. Check every detail before you send it.” Download it as Excel or Word, or choose Edit this document to change anything, then save it and print it as a PDF. Nothing reaches your account until you do that yourself.
To try it, connect your AI app first: three steps below, about three minutes, once. After that, each document is one request.
Connect in three steps
You need a free QuoteBill account and an AI app that accepts connectors (links to other services), such as Claude or ChatGPT on the web.
- Copy QuoteBill’s connection address
- In the app’s settings, add a connector
- sign in or join free, choose Allow, then go back to your chat
- Copy QuoteBill’s connection address: https://quotebill.com/mcp
- In the app’s settings, add a connector (ChatGPT calls it a plugin, earlier an app) and paste the address as its URL.
- A QuoteBill window opens: sign in or join free, choose Allow, then go back to your chat. The AI never sees your password.
| Where it works | Good to know | |
|---|---|---|
| Connect Claude | On claude.ai, open Customize, then Connectors | The free plan allows one custom connector |
| Connect ChatGPT | Use ChatGPT on the web, at chatgpt.com, with a paid plan | custom connections are reported not to be offered on the free plan or in the mobile apps |
| Connect Gemini | Gemini connects through Gemini CLI, Google’s Gemini agent for the terminal | The Gemini app on gemini.google.com cannot use QuoteBill yet |
| For developers: Gemini CLI, Claude Code, Codex and Cursor | QuoteBill is a remote MCP server over streamable HTTP | the first connection signs you in with OAuth |
Connect Claude
- On claude.ai, open Customize, then Connectors (in older versions, Settings, then Connectors).
- Choose Add custom connector, paste the address as the URL and name it QuoteBill if asked, then choose Add and Connect.
- Sign in to QuoteBill and choose Allow.
- In a new chat, click +, choose Connectors and check that QuoteBill is on; Claude’s desktop and mobile apps show it too.
- The free plan allows one custom connector.
- In a Team or Enterprise organization, an owner adds it first (Organization settings, then Connectors) and each member then chooses Connect.
Connect ChatGPT
- Use ChatGPT on the web, at chatgpt.com, with a paid plan: custom connections are reported not to be offered on the free plan or in the mobile apps.
- Open the plugins page (earlier versions call it apps) and add a custom MCP server.
- If you cannot find that option, turn on developer mode first, under Settings, then Security and login.
- Its warning is general; QuoteBill only looks up public information and does arithmetic.
- Name it QuoteBill, paste the address, choose OAuth and create it, then sign in to QuoteBill and choose Allow.
- In a chat, pick QuoteBill from the composer’s + menu or its Developer mode tool.
- ChatGPT renames and moves these screens often, so go by what yours calls them.
Connect Gemini
- Gemini connects through Gemini CLI, Google’s Gemini agent for the terminal: run
gemini mcp add --scope user --transport http quotebill https://quotebill.com/mcp, then enter/mcp auth quotebillin gemini. - Google’s own page says Gemini CLI was replaced by Antigravity CLI on 18 June 2026 for free users and for Google AI Pro and Ultra; paid API keys and company licences keep it.
- QuoteBill has not been tried with Antigravity CLI, so follow that tool’s instructions for adding a remote server.
- Your browser opens QuoteBill, saying Gemini CLI MCP Client wants to use it and returns to an app on this device: sign in and choose Allow.
- Back in gemini, /mcp lists QuoteBill’s tools.
- The Gemini app on gemini.google.com cannot use QuoteBill yet: Google offers such connections there only in the United States, from age 18, with a personal Google account and in English, and QuoteBill’s sign-in does not accept it yet.
- As in every app, the connection is for members, accepts up to 60 requests a minute, cannot open your saved documents or contracts, and sends, signs or deletes nothing.
- To disconnect, run
gemini mcp remove --scope user quotebilland choose Disconnect beside Gemini CLI MCP Client under Connected AI apps.
gemini mcp add --scope user --transport http quotebill https://quotebill.com/mcp/mcp auth quotebillgemini mcp remove --scope user quotebill
For developers: Gemini CLI, Claude Code, Codex and Cursor
QuoteBill is a remote MCP server over streamable HTTP; the first connection signs you in with OAuth.
- Gemini CLI by hand: add "quotebill": { "httpUrl": "https://quotebill.com/mcp" } under "mcpServers" in ~/.gemini/settings.json, then run /mcp auth quotebill.
- Claude Code: run claude mcp add --transport http quotebill https://quotebill.com/mcp, then sign in from /mcp.
- Codex: in ~/.codex/config.toml, add a [mcp_servers.quotebill] table whose url is the address, then sign in when asked.
- Cursor and other MCP tools: add the address as a remote (HTTP) MCP server; the first connection opens QuoteBill’s sign-in.
- The 15 tools are search_templates, get_template, get_tax_rule, calculate_totals, build_document, next_document, calculate_tax, convert_currency, list_contract_templates, get_contract_template, search_forms, get_form, top_templates, list_guides and list_reference. All are marked read-only; none reads or changes your account. build_document drafts one of ten kinds of document and next_document makes the next one from its link.
- Their descriptions and input schemas can be read without signing in, at https://quotebill.com/.well-known/mcp/server-card.json. Each member may make 60 calls a minute.
The client says yes: the quotation becomes the invoice
Tom accepts. Maya stays in the same chat (or pastes the quotation’s link into a new one) and writes: “The client accepted. Make the invoice from that quotation, number it 2026-014 and make it due in 14 days.”
The AI hands the quotation’s link back to QuoteBill, which builds the invoice from it: the same client, the same three lines, the same VAT and the same total of £2,208.00, with today as the issue date and the due date you named (30 days after the issue date if you name none). The same step turns a quotation into a proforma invoice or a work order, an invoice into a receipt, a credit note or a delivery note, and a proforma invoice into an invoice, a commercial invoice or the receipt for its prepayment.
What opens in QuoteBill is the invoice template, filled in and under the same notice that an AI drafted it. The link, not your account, is the source: the connection cannot see the quotations you saved in QuoteBill. To start from one of those, open it in QuoteBill and use the editor’s own Make an invoice button.
The end of the month: a statement of account
At the end of September Maya wants Northgate Dental to see where it stands. The AI cannot read the invoices she saved, so she gives it the figures from her bookkeeping: “Make a statement of account in QuoteBill for Northgate Dental, 1 to 30 September, starting from 0. Invoice 2026-014 on 3 September, £2,208. Invoice 2026-019 on 12 September, £480. Payment received on 20 September, £1,000. I am Maya Ortiz in the UK.”
Back comes a running balance, line by line: £2,208.00 after the first invoice, £2,688.00 after the second and £1,688.00 after the payment, with £2,688.00 charged, £1,000.00 paid and a balance due of £1,688.00. A statement lists what was invoiced and paid and adds no tax of its own.
In QuoteBill the statement of account template opens with the period and the three lines in place. If the invoices are already saved in your account, you can instead start a statement in the editor and use Add from my documents, which lists a customer’s invoices, receipts and credit notes for you to tick.
More requests to try
Your AI gets 536 QuoteBill templates, the editor’s own arithmetic and the published standard tax rate for 151 countries, each with its source. Mention QuoteBill in the first request and say who the document is for, what you charge and in which country; the AI asks about anything missing. For example:
- “Make an invoice in QuoteBill for my client in Germany: 12 hours of consulting at €95 an hour, due in 14 days.” (a document that lists hours instead of quantities)
- “Find a QuoteBill template for a plumbing quotation and fill it in with these jobs: …” (it searches the templates, then drafts)
- “What VAT applies to an invoice for a client in Germany, and where does that rate come from?” (the published rate, with its source)
- “Convert 2,400 euros to US dollars with the latest rate.” (the European Central Bank’s daily reference rate: dated and indicative, not a bank’s rate)
- “Which QuoteBill sample contract suits a video editor, and what clauses does it have?” (samples, not legal advice)
- “Find me a mutual NDA template for Korea.” (it searches the Forms Top 100 and answers with the Non-Disclosure Agreement: it comes in a Korean version, written in Korean or English, marked “check with local advice”, and the AI gives its page, where you pick the country and a design and fill it in; a template, not legal advice)
What your AI can do with QuoteBill, and what it cannot
It can draft ten kinds of document (quotation, invoice, proforma invoice, receipt, credit note, purchase order, delivery note, work order, statement of account and commercial invoice), turn a draft into the next document, work out tax, convert currencies at indicative rates, show sample contracts (not legal advice; it cannot create or send one) and find a business form in the Forms Top 100 (a template, not legal, tax or accounting advice).
It cannot open the documents you saved in QuoteBill, save anything to your account, or send, sign or delete anything. A draft travels inside its link, and it becomes your document when you open the link and save it.
What you get back, and what to check
The AI shows the subtotal, tax and total and gives you a link that opens the filled-in document on QuoteBill, ready to download as Excel or Word or to edit and save as a PDF.
The figures are only as right as what you told the AI, so check names, quantities, dates and the currency before you send anything. A published tax rate is a starting point, not advice: whether it applies depends on your registration and what you sell where. Where there is no single national rate, as in the United States, QuoteBill asks for yours instead of guessing. Where invoices may have to be issued as e-invoices, as in Germany or South Korea, the answer also carries QuoteBill’s notice that its document is a printable copy, not a registered e-invoice.
What happens to your information
The connection checks that you are a member, then only looks up public information and does arithmetic. It keeps no client names or amounts and sends, signs or deletes nothing; your app sees your account’s email address, name and photo, but not your saved documents or contracts. The draft travels in the link after the # sign, which browsers never send to a server.
The link carries a checksum: if the AI changes one character, QuoteBill refuses the draft rather than show a wrong figure. What you type into the AI app follows that app’s privacy terms.
To disconnect, remove QuoteBill in the AI app or choose Disconnect under Connected AI apps in Company settings.
If something goes wrong
Most problems lie in the AI app’s settings, not the connection.
- The AI answers without QuoteBill: mention QuoteBill and check the connector is on for this chat.
- The draft will not open: the link was cut short or changed; ask the AI to resend it unchanged.
- The AI cannot find the quotation to turn into an invoice: it knows only the links it made in that chat. Paste the quotation’s link into the new chat.
- The draft is gone when you come back: QuoteBill keeps an opened draft in your browser for 24 hours, but the link holds the whole document, so open it again from the chat.
- The page is in the wrong language: ask the AI to open QuoteBill in yours, apart from the document’s.
- Asked to sign in again: use the same QuoteBill account and choose Allow.
Sources
536 Free Invoice, Quote & Receipt Templates
Free quotation generator
Download the quotation as Excel or Word with the formulas working (free for QuoteBill members), or edit it online and turn an accepted quote into an invoice.
Free invoice generator
Download the invoice as Excel or Word with working formulas (free for QuoteBill members), or edit it online with your logo and tax settings and save a PDF.
Consultant invoice template
Create a consulting invoice for hourly or project work, research and report delivery. Add payment terms, review the total, then save a PDF or download Word.