QuoteBill MCP server

QuoteBill MCP server

Draft quotations and invoices from the AI assistant you already use. QuoteBill's remote MCP server gives ChatGPT, Claude, Gemini and any other MCP client:

• 133 quotation and invoice templates for trades, professional services, countries and languages
• Tax rules for 195 countries, each with the official source it was read from and the date it was checked
• Totals worked out with the same arithmetic as the QuoteBill editor, rounded to the currency
• A link to the finished document: build_document returns a URL that opens the drafted quotation or invoice, filled in, on quotebill.com, ready to download as Excel or Word or to save as a PDF

Connect

The first time you connect, your AI app opens QuoteBill in the browser. Sign in or sign up free, check which app is asking, and choose Allow. You do this once per app; you can disconnect an app at any time under Connected AI apps in QuoteBill's company settings.

Claude (claude.ai, desktop and mobile) — Settings → Connectors → Add custom connector. Name QuoteBill, URL https://quotebill.com/mcp, then Connect. Or open this link: add QuoteBill to Claude.

ChatGPT (chatgpt.com) — turn on developer mode in Settings, then create an app from the apps page: MCP server URL https://quotebill.com/mcp, authentication OAuth. Sign in to QuoteBill and allow it, then add QuoteBill from the + menu in a chat.

Claude Code

claude mcp add --transport http quotebill https://quotebill.com/mcp

Then run /mcp, choose quotebill and sign in.

Codex — ~/.codex/config.toml, then codex mcp login quotebill

[mcp_servers.quotebill]
url = "https://quotebill.com/mcp"

Gemini CLI — install this repository as an extension:

gemini extensions install https://github.com/auto1225/quotebill-mcp

or add it to ~/.gemini/settings.json:

{ "mcpServers": { "quotebill": { "httpUrl": "https://quotebill.com/mcp" } } }

Then run /mcp auth quotebill once to sign in.

Cursor — .cursor/mcp.json (Cursor opens the sign-in when you enable the server)

{ "mcpServers": { "quotebill": { "url": "https://quotebill.com/mcp" } } }

VS Code — .vscode/mcp.json (VS Code asks you to sign in when the server starts)

{ "servers": { "quotebill": { "type": "http", "url": "https://quotebill.com/mcp" } } }

Claude Code plugin — this repository is also a plugin marketplace:

/plugin marketplace add auto1225/quotebill-mcp
/plugin install quotebill@quotebill

How the sign-in works

A request without a token gets 401 with WWW-Authenticate: Bearer resource_metadata="https://quotebill.com/.well-known/oauth-protected-resource/mcp". That metadata (RFC 9728) names the authorization server, Supabase Auth at https://wgpfbcfiontxqusseoyv.supabase.co/auth/v1, whose metadata (RFC 8414) offers dynamic client registration, PKCE and the email scope. MCP clients that follow the MCP authorization specification need nothing else.

Tools

Shortened. The full README is on GitHub.