Nero Quote Builder: how to connect
Turns a UK tradesperson's site visit into a priced, VAT-correct quote with a branded PDF and a phone page the customer accepts in one tap. For electricians, plumbers and heating engineers, builders, roofers and decorators.
Nero Quote Builder is a remote MCP server: a set of tools your AI assistant can call. You do not open it like a website. You add its address to your AI app once, then just talk to your assistant as normal.
Server address: https://quote-builder.nerolabs.workers.dev/mcp
Sign-in: No account sign-in. The first call (setup_trade) gives the business a private key starting qbk_. Your AI keeps it and passes it with each call; in apps that allow headers you can set it once as "Authorization: Bearer qbk_...". Lose the key and you set up again.
Connect it in Claude
- Open Claude (claude.ai or the desktop app) and go to Settings, then Connectors.
- Choose Add custom connector. Name it Nero Quote Builder and paste
https://quote-builder.nerolabs.workers.dev/mcpas the URL. - Save, then turn it on in a chat from the tools menu.
Claude Code: claude mcp add --transport http nero-quote-builder https://quote-builder.nerolabs.workers.dev/mcp
Connect it in ChatGPT
- In ChatGPT go to Settings, then Apps and connectors, then Advanced settings, and switch on Developer mode (needed for any custom connector).
- Back in Apps and connectors, choose Create. Name it Nero Quote Builder, paste
https://quote-builder.nerolabs.workers.dev/mcpas the MCP server URL and pick No authentication. - Tick that you trust the app and press Create. Then pick it from the tools menu in a new chat.
Other MCP apps (Cursor, VS Code, Windsurf, Gemini CLI and more)
Add a remote server with the Streamable HTTP transport. Most apps take a JSON block like this:
{
"mcpServers": {
"nero-quote-builder": { "type": "http", "url": "https://quote-builder.nerolabs.workers.dev/mcp" }
}
}
Three things to try
The tools
| Tool | What it does |
|---|---|
setup_trade | Set up or update the business quoting profile Create a business, or update its saved settings (call with trade_key to update). |
get_trade | Show the business profile, price book, stats and free allowance The trade's saved settings, price book (most used first), quote stats (win rate, value won in the last 12 months) and, for a business that is not VAT registered, a warning when accepted work is nearing the £90,000 VAT registration threshold. |
save_price_items | Save materials to the price book Add or update materials in the trade's price book, so later quotes can use { code, qty } and the cost, unit and markup fill in. |
draft_quote | Draft a priced, VAT-correct quote Price a job after a site visit. |
revise_quote | Change or withdraw a quote Change a quote. Send only the fields that change (a list you send, such as materials, replaces that whole list). |
finalise_quote | Finalise a quote and get the customer link Lock a draft so the customer can answer it. |
quote_activity | See what customers did with quotes What customers have done since the trade last checked: quotes opened, accepted (with the name they signed, extras ticked and final total), questions asked, declined. |
get_quote | Show one quote in full One quote in full: lines, totals, VAT working with HMRC sources, margins (trade only), the customer's answer, history (drafted, sent, opened, accepted) and links. |
list_quotes | List quotes Recent quotes, newest first, with status (draft, sent, viewed, queried, accepted, declined, expired, withdrawn), total and whether there is news. |
reply_to_customer | Answer a customer question on the quote page Answer a customer's question. |
export_to_nero_work | Export a quote in Nero Work format The quote in the exact argument shape of the Nero Work exchange's submit_quote tool (labour_minor, materials_minor, vat_minor in pence, validity_hours, exclusions, notes), checked with Nero Work's own rules. |
Good to know
- Free: 5 finalised quotes a month for every business, counted per UK calendar month. Drafts, revisions, replies and exports never count. There is no paid plan and no card.
- The tool never sends anything to your customers. You send the link yourself by text, WhatsApp or email.
- VAT is worked out from your VAT registration and each line's VAT type, with the HMRC rule named. You stay responsible for the prices and VAT treatment you choose.
- Every quote can be handed to Nero Work, the job exchange for trades, in its exact quote format.
- What is stored and how to delete it: see Privacy.
Support
Email founder@neroengine.com. Say which tool you used and what you asked; we reply within 2 working days.
Nero Engine Group Ltd (company 16521432, England and Wales), trading as Nero Labs. Page updated 12-11-2026.