Connector guide1-minute read5 MCP toolsEN · DE · IT

How to Connect FastBill to MCP for AI Agents

Manage invoices, customers, and expenses with AI agents via MCP. FastBill is a popular invoicing tool for German freelancers and small businesses.

HCBy HelpCode teamUpdated 1 min read Open-source on GitHub

No credit card · 7-day trial · Self-host alternative available

FastBill Invoicing

FastBill Invoicing

Manage invoices, customers, expenses, and revenue with FastBill. Popular invoicing and bookkeeping tool for German freelancers and small businesses.

tools

5

Region

DE

Category

Finance

Authentication

Basic Auth

Required env vars

FASTBILL_EMAILFASTBILL_API_KEY
Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

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.

Start free trial

Summary

Manage invoices, customers, and expenses with AI agents via MCP. FastBill is a popular invoicing tool for German freelancers and small businesses.

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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.

FastBill Invoicing · live via MCP
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Opus 4.7

Claude is AI and can make mistakes. Please double-check responses.

FastBill Invoicing with AI Agents

FastBill is a popular invoicing and bookkeeping platform for German freelancers and small businesses. By connecting its API to MCP, AI agents can query customers, list invoices, track expenses, and analyze revenue.

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/store, import the FastBill adapter, and enter your FastBill email and API key.

{
  "mcpServers": {
    "fastbill": { "url": "http://localhost:4000/mcp" }
  }
}

Available Tools

ToolDescription
fastbill_list_customersList customers with search filtering
fastbill_list_invoicesList invoices filtered by customer, month, or year
fastbill_get_invoiceGet full invoice details with line items
fastbill_list_expensesList expenses filtered by period
fastbill_list_revenuesList revenue entries

Use Cases

  • "Show all unpaid invoices from this month"
  • "How much revenue did I generate in Q1?"
  • "List all customers from Munich"
  • "What are my total expenses for March 2026?"

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