--- title: "fastbill integrations and MCP server - APIANT.ai" description: "Connect fastbill to any other app, or use it from your AI client over MCP. FastBill is a cloud app for German invoicing & accounting." canonical: "https://apiant.ai/connections/fastbill" --- # fastbill integrations Connect fastbill to any other app, or use it from your AI client over MCP. FastBill is a cloud app for German invoicing & accounting. Writing offers and invoices, paying your bills or preparing your tax return is easier than ever with FastBill. Connects with an API key [fastbill.com](https://fastbill.com/) **18** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want to automate with fastbill? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Popular ## fastbill with the apps people pair it with most - [ **HubSpot to fastbill** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-fastbill) - [ **Salesforce to fastbill** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-fastbill) - [ **Slack to fastbill** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-fastbill) - [ **Google Sheets to fastbill** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-fastbill) - [ **Gmail to fastbill** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-fastbill) - [ **Google Calendar to fastbill** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-fastbill) - [ **Google Drive to fastbill** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-fastbill) - [ **Mailchimp to fastbill** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-fastbill) Pair it ## Connect fastbill with another app - [ **FreeAgent to fastbill**](https://apiant.ai/connect/freeagent-to-fastbill) - [ **HubSpot to fastbill**](https://apiant.ai/connect/hubspot-to-fastbill) - [ **Salesforce to fastbill**](https://apiant.ai/connect/salesforce-to-fastbill) - [ **Slack to fastbill**](https://apiant.ai/connect/slack-to-fastbill) - [ **Google Sheets to fastbill**](https://apiant.ai/connect/google-sheets-to-fastbill) - [ **Gmail to fastbill**](https://apiant.ai/connect/gmail-to-fastbill) - [ **Google Calendar to fastbill**](https://apiant.ai/connect/google-calendar-to-fastbill) - [ **Google Drive to fastbill**](https://apiant.ai/connect/google-drive-to-fastbill) - [ **Mailchimp to fastbill**](https://apiant.ai/connect/mailchimp-to-fastbill) - [ **Stripe to fastbill**](https://apiant.ai/connect/stripe-to-fastbill) - [ **Shopify to fastbill**](https://apiant.ai/connect/shopify-to-fastbill) - [ **QuickBooks Online to fastbill**](https://apiant.ai/connect/quickbooks-online-to-fastbill) - [ **Pipedrive to fastbill**](https://apiant.ai/connect/pipedrive-to-fastbill) - [ **ActiveCampaign to fastbill**](https://apiant.ai/connect/activecampaign-to-fastbill) - [ **Notion to fastbill**](https://apiant.ai/connect/notion-to-fastbill) - [ **Airtable to fastbill**](https://apiant.ai/connect/airtable-to-fastbill) - [ **Trello to fastbill**](https://apiant.ai/connect/trello-to-fastbill) - [ **Asana to fastbill**](https://apiant.ai/connect/asana-to-fastbill) - [ **JIRA to fastbill**](https://apiant.ai/connect/jira-to-fastbill) - [ **ClickUp to fastbill**](https://apiant.ai/connect/clickup-to-fastbill) - [ **Zoom to fastbill**](https://apiant.ai/connect/zoom-to-fastbill) - [ **Discord to fastbill**](https://apiant.ai/connect/discord-to-fastbill) - [ **Twilio to fastbill**](https://apiant.ai/connect/twilio-to-fastbill) - [ **SendGrid to fastbill**](https://apiant.ai/connect/sendgrid-to-fastbill) - [ **Outlook to fastbill**](https://apiant.ai/connect/outlook-to-fastbill) - [ **Intercom to fastbill**](https://apiant.ai/connect/intercom-to-fastbill) - [ **Freshdesk to fastbill**](https://apiant.ai/connect/freshdesk-to-fastbill) - [ **Klaviyo to fastbill**](https://apiant.ai/connect/klaviyo-to-fastbill) - [ **Brevo to fastbill**](https://apiant.ai/connect/brevo-to-fastbill) - [ **Typeform to fastbill**](https://apiant.ai/connect/typeform-to-fastbill) - [ **JotForm to fastbill**](https://apiant.ai/connect/jotform-to-fastbill) - [ **Calendly to fastbill**](https://apiant.ai/connect/calendly-to-fastbill) - [ **PandaDoc to fastbill**](https://apiant.ai/connect/pandadoc-to-fastbill) - [ **Webflow to fastbill**](https://apiant.ai/connect/webflow-to-fastbill) - [ **Wix to fastbill**](https://apiant.ai/connect/wix-to-fastbill) - [ **Instagram to fastbill**](https://apiant.ai/connect/instagram-to-fastbill) - [ **OpenAI to fastbill**](https://apiant.ai/connect/openai-to-fastbill) - [ **OneDrive to fastbill**](https://apiant.ai/connect/onedrive-to-fastbill) - [ **Google Docs to fastbill**](https://apiant.ai/connect/google-docs-to-fastbill) - [ **Ontraport to fastbill**](https://apiant.ai/connect/ontraport-to-fastbill) - [ **Freshworks CRM to fastbill**](https://apiant.ai/connect/freshworks-crm-to-fastbill) - [ **GoHighLevel to fastbill**](https://apiant.ai/connect/gohighlevel-to-fastbill) - [ **Capsule CRM to fastbill**](https://apiant.ai/connect/capsule-crm-to-fastbill) - [ **Copper to fastbill**](https://apiant.ai/connect/copper-to-fastbill) - [ **Streak to fastbill**](https://apiant.ai/connect/streak-to-fastbill) - [ **NetHunt CRM to fastbill**](https://apiant.ai/connect/nethunt-crm-to-fastbill) - [ **MINDBODY to fastbill**](https://apiant.ai/connect/mindbody-to-fastbill) - [ **PostgreSQL to fastbill**](https://apiant.ai/connect/postgresql-to-fastbill) - [ **MySQL to fastbill**](https://apiant.ai/connect/mysql-to-fastbill) - [ **Vercel to fastbill**](https://apiant.ai/connect/vercel-to-fastbill) - [ **PagerDuty to fastbill**](https://apiant.ai/connect/pagerduty-to-fastbill) - [ **Gravity Forms to fastbill**](https://apiant.ai/connect/gravity-forms-to-fastbill) - [ **HubSpot Enterprise to fastbill**](https://apiant.ai/connect/hubspot-enterprise-to-fastbill) - [ **Google Forms to fastbill**](https://apiant.ai/connect/google-forms-to-fastbill) - [ **Facebook Lead Ads to fastbill**](https://apiant.ai/connect/facebook-lead-ads-to-fastbill) - [ **monday.com to fastbill**](https://apiant.ai/connect/monday-com-to-fastbill) - [ **Google Ads to fastbill**](https://apiant.ai/connect/google-ads-to-fastbill) - [ **Google Tasks to fastbill**](https://apiant.ai/connect/google-tasks-to-fastbill) - [ **Telegram to fastbill**](https://apiant.ai/connect/telegram-to-fastbill) - [ **MailerLite to fastbill**](https://apiant.ai/connect/mailerlite-to-fastbill) What your agent can do with fastbill ## Triggers and actions 18 actions - Action **Add Payment for Invoice** Adds full payment for invoice - Action **Add Payment for Revenue** Adds full payment for revenue - Action **Create Customer** Creates a new customer in FastBill - Action **Create Invoice** Creates a new invoice - Action **Create Offer** Creates a new offer in FastBill - Action **Create Revenue** Creates a revenue entry - Action **Delete Customer** Delete a FastBill customer by ID. - Action **Delete Invoice** Delete a FastBill invoice by ID. - Action **Delete Offer** Delete a FastBill offer/estimate by ID. - Action **Finalize Invoice** Converts an invoice draft to a final invoice - Action **Get Customer** Fetch a single FastBill customer by ID. - Action **Get Invoice** Fetch a single FastBill invoice by ID. - Action **Get Offer** Fetch a single FastBill offer/estimate by ID. - Action **Search Customer** Search for a Customer - Action **Search Invoice** Find an invoice - Action **Send Invoice by Email** Send an invoice by email - Action **Update Customer** Update fields on an existing FastBill customer. - Action **Update Invoice** Update fields on an existing (draft) FastBill invoice. ## Related apps - [ **Accounting Seed** Accounting Seed is a Salesforce-native accounting application connecting front- and back-office finance.](https://apiant.ai/connections/accounting-seed) - [ **Alegra to fastbill** Alegra is an accounting and billing app designed for Latin American managers.](https://apiant.ai/connect/alegra-to-fastbill) - [ **CII & UBL by InvoiceXML** CII & UBL by InvoiceXML is an e-invoice compliance service for creating, converting, validating, and...](https://apiant.ai/connections/cii-ubl-by-invoicexml) - [ **Easybill** Create invoices, quotations and delivery notes with Easybill's cloud-based accounting software.](https://apiant.ai/connections/easybill) - [ **Factur-X by InvoiceXML** Factur-X by InvoiceXML is an e-invoice automation: create, transform, validate, and extract Factur-X PDFs...](https://apiant.ai/connections/factur-x-by-invoicexml) - [ **FacturaDirecta to fastbill** FacturaDirecta is an easy accounting software for small business and freelancers.](https://apiant.ai/connect/facturadirecta-to-fastbill) - [ **Finmei** Finmei is an invoicing tool which helps you quickly issue invoices and track your expenses.](https://apiant.ai/connections/finmei) - [ **FreeAgent to fastbill** FreeAgent is cloud accounting software for small businesses and freelancers — manage contacts, invoices...](https://apiant.ai/connect/freeagent-to-fastbill) [More in Accounting](https://apiant.ai/apps/accounting) Reviews ## What our customers say Questions ## fastbill, answered ### ### Is there a fastbill MCP server? APIANT's MCP server at https://mcp.apiant.ai works with fastbill. Add that address to any AI client that takes a remote MCP server and sign in once in your browser. Your client can then run fastbill actions on demand, or have APIANT build, test and run automations that use fastbill. Nothing to install. ### ### What can your agent do in fastbill? Any of fastbill's 18 actions, including Create Customer, Create Invoice, Create Offer and Create Revenue. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can I use fastbill directly from Claude, ChatGPT or Cursor? Yes. Connect your AI client to APIANT once and it works with fastbill two ways. Ask it to do something in fastbill once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running on its own. A one-off action uses your plan's tasks the same way an automation step does. ### ### Do I need to write code against the fastbill API? No. APIANT connects to the fastbill API for you, with your fastbill API key. Describe what you want in plain language and your agent builds it on the fastbill triggers and actions in the catalog. If you need an endpoint that is not there yet, your agent reads the fastbill API documentation and adds it. ### ### Which apps can fastbill connect to? Any app in the catalog; the list on this page pairs fastbill with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.