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 Copilot using MCP. Query customers, invoices, expenses and revenue data with natural language. Step-by-step guide.
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 Copilot
FastBill is one of Germany's most popular invoicing tools for freelancers and small businesses. With AnythingMCP, you can connect FastBill's API directly to Copilot, enabling natural language queries over your financial data.
What You Can Do
Once connected, ask Copilot things like:
- "Show me all unpaid invoices from this quarter"
- "How much revenue did customer Müller GmbH generate last year?"
- "List my top 10 customers by invoice volume"
- "What are my total expenses for March?"
Step 1: Set Up AnythingMCP
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
Or use AnythingMCP Cloud for instant setup without Docker.
Step 2: Import the FastBill Adapter
- Open
http://localhost:3000/connectors/store - Find FastBill Invoicing in the adapter list
- Click Import — you'll be prompted for your credentials
- Enter your FastBill email and API key (find it in FastBill under Settings → API)
Step 3: Assign to an MCP Server
After import, choose which MCP server should expose FastBill tools. You can select an existing one or create a new MCP server.
Step 4: Connect Microsoft Copilot
The quickstart above listens on localhost only. For Microsoft Copilot, install the connector on AnythingMCP Cloud instead, or on an instance with a public HTTPS address.
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
Microsoft Copilot uses MCP servers through agents built in Copilot Studio: you add AnythingMCP to an agent as a tool, then publish the agent to Microsoft 365 Copilot and Teams. Copilot Studio connects from Microsoft's cloud over Streamable HTTP, which AnythingMCP supports.
- In Copilot Studio, open your agent (or create one), go to Tools and choose Add a tool → New tool → Model Context Protocol.
- Enter a Server name (for example
AnythingMCP), a Server description that says what the connector does, and the Server URLhttps://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID. Copilot Studio uses the description to decide when to call the server. - Under authentication, choose API key, set Type to Header and the header name to
X-API-Key, then select Create. - In Add tool, choose Create a new connection, paste an MCP API key from AnythingMCP (MCP Servers → your server → API keys) and select Add to agent.
- Try it in the agent's Test pane: ask for something that needs the
FastBilltools. - Select Publish, then Channels → Microsoft 365 and Microsoft Teams, keep Make agent available in Microsoft Copilot selected and choose Add channel. See agent in Teams installs it for you; in Microsoft 365 Copilot, type @ and pick the agent.
Prefer per-user sign-in? Choose OAuth 2.0 → Dynamic discovery instead of an API key: each user then signs in to AnythingMCP the first time the agent calls it.
Self-hosting? Use your instance's public HTTPS address instead of https://cloud.anythingmcp.com. Copilot Studio connects from Microsoft's cloud, so localhost does not work.
Available Tools
| Tool | Description |
|---|---|
fastbill_list_customers | Search and list customers |
fastbill_list_invoices | List invoices by customer, month, or year |
fastbill_get_invoice | Get full invoice details with line items |
fastbill_list_expenses | List expenses by period |
fastbill_list_revenues | List revenue entries |
Why AnythingMCP?
Unlike building a custom integration, AnythingMCP gives you a pre-built FastBill adapter with one-click import. Your API credentials are encrypted, and all requests are logged in the audit trail. You can combine FastBill with other connectors (DHL, weclapp, etc.) in a single MCP server.
FAQ
Which Copilot is this for? Microsoft 365 Copilot at work, through agents built in Copilot Studio. The Microsoft Copilot app for personal accounts has no option to add your own MCP server.
What do I need? A work account with access to Copilot Studio (a license or a trial) to build the agent. People who use it in Microsoft 365 Copilot or Teams need access to the agent: share it with them, or ask an admin to publish it to the organization. If your organization applies data policies to Power Platform connectors, they cover MCP servers too.
The agent doesn't call the tools. Check that the header name is exactly X-API-Key and that the key belongs to the same MCP server as the URL, and make the server description specific: Copilot Studio uses it to decide when to call the server. Publish the agent again after each change; in an open chat, type "start over" to get the new version.
Next steps
- Connector landing page
- Connect to Claude
- Connect to ChatGPT
- Connect to Cursor
- Connect to Gemini
- Connect to Meta Muse
Was this guide helpful?