---
title: "Connect Bubble to fastbill - APIANT.ai"
description: "When \"New Thing\" fires in Bubble, your agent runs \"Add Payment for Invoice\" in fastbill."
canonical: "https://apiant.ai/connect/bubble-to-fastbill"
---

# Connect Bubble to fastbill

When **New Thing** fires in [Bubble](https://apiant.ai/connections/bubble), your agent runs **Add Payment for Invoice** in [fastbill](https://apiant.ai/connections/fastbill). Describe the whole flow and it is built, tested on every scenario and kept running.

Bubble **1** trigger Bubble **6** actions fastbill **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 Bubble and fastbill to do together?

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)

Example flows

## What Bubble can start in fastbill

- When **New Thing** in Bubble then **Add Payment for Invoice** in fastbill
- When **New Thing** in Bubble then **Create Customer** in fastbill

Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.

Everything your agent can do with Bubble and fastbill

## Triggers and actions 1 trigger · 24 actions

- Trigger

**New Thing**

Triggers when a new record of one of your app's data types is created.

- Action

**Create Thing**

Creates a new record of one of your app's data types and returns its unique ID.

- Action

**Delete Thing**

Deletes one record of one of your app's data types by its unique ID.

- Action

**Find a Bubble Thing**

Finds the first record of one of your app's data types whose field equals the value you give.

- Action

**Get Thing**

Returns one record of one of your app's data types by its unique ID, with all of its fields.

- Action

**Modify Thing**

Updates fields on an existing record of one of your app's data types.

- Action

**Trigger API Workflow**

Runs one of your app's backend API workflows, passing it the parameters you supply, and returns what the workflow responds with.

- 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.

## Each app on its own

- [ **Bubble** Bubble is a visual programming platform to build web apps without code.](https://apiant.ai/connections/bubble)
- [ **fastbill** FastBill is a cloud app for German invoicing & accounting.](https://apiant.ai/connections/fastbill)

Reviews

## What our customers say

## More from Bubble

- [ **Bubble to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/bubble-to-hubspot)
- [ **Bubble to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/bubble-to-salesforce)
- [ **Bubble to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/bubble-to-slack)
- [ **Bubble to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/bubble-to-google-sheets)
- [ **Bubble to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/bubble-to-gmail)
- [ **Bubble to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/bubble-to-google-calendar)

## More into fastbill

- [ **FreeAgent to fastbill** FreeAgent is cloud accounting software for small businesses and freelancers — manage contacts, invoices...](https://apiant.ai/connect/freeagent-to-fastbill)
- [ **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)

Questions

## Bubble and fastbill, answered

###

### What can start an automation from Bubble?

Any of Bubble's 1 trigger in the catalog, including New Thing. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in fastbill when something happens in Bubble?

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 it also run from fastbill to Bubble?

fastbill has no triggers in the catalog today, so automations start in Bubble. If you need the other direction, ask: your agent reads fastbill's API documentation and adds it.

###

### Do I have to build a connector for Bubble or fastbill?

No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.

###

### Can my AI client use Bubble and fastbill without building an automation?

Yes. With your AI client connected to APIANT, ask it to do something in either app 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. One connection covers both.

###

### 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.
