Skip the install. Get this working in under 2 minutes.
Start a free trial on cloud.anythingmcp.com, add the FastBill Invoicing in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.
Summary
Connect FastBill invoicing to ChatGPT using MCP. Query customers, invoices, and expenses with natural language. Works with ChatGPT Desktop and API.
Try asking
Example prompts for FastBill Invoicing
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
Connect FastBill to ChatGPT
FastBill is a popular German invoicing platform. With AnythingMCP, you can expose FastBill data as MCP tools that ChatGPT can call directly — no custom code needed.
What You Can Do
Once connected, ask ChatGPT:
- "Show all unpaid invoices from this month"
- "How much revenue did I make in Q1?"
- "List expenses over 500€ from last quarter"
- "Which customers have the most open invoices?"
Quick Setup
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
- Open
http://localhost:3000/connectors/storeand import the FastBill adapter - Enter your FastBill email and API key
- Assign the connector to an MCP server
Connect to ChatGPT
ChatGPT supports MCP servers via its remote server configuration. Point it at your AnythingMCP endpoint:
{
"mcpServers": {
"fastbill": { "url": "https://your-anythingmcp-instance.com/mcp" }
}
}
For ChatGPT Desktop, add the server URL in Settings → Connected Tools → Add MCP Server.
Available Tools
- fastbill_list_customers — Search customers
- fastbill_list_invoices — Filter invoices by customer, month, year
- fastbill_get_invoice — Full invoice details with line items
- fastbill_list_expenses — Expenses by period
- fastbill_list_revenues — Revenue tracking
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