Integrate FastBill with FreeAgent to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Create Customer in Fastbill when New Contact in FreeAgent
Create Invoice in FastBill when New Contact in FreeAgent
Add Payment for Invoice to FastBill when New Contact in FreeAgent
Send Invoice by Email using FastBill when New Contact in FreeAgent
Create Revenue in FastBill when New Contact in FreeAgent
Start from a real workflow other teams are already running.
FastBill
When this happens...
New Offer
New Customer
Customer Updated
Customer Deleted
New Invoice
Invoice Completed
Invoice Canceled
Offer Updated
New Contact
Contact Updated
Contact Deleted
FreeAgent
Automatically do this!
Create Task
Create Contact
Create User
Create a Project
Update a Task
Delete a Task
Update a Contact
Delete a Contact
Get a Contact
Update an User
Delete a User
Get a User
Update a Project
Delete a Project
Get a Project
Create Customer in Fastbill when New Contact in FreeAgent
Use this flowCreate Invoice in FastBill when New Contact in FreeAgent
Use this flowAdd Payment for Invoice to FastBill when New Contact in FreeAgent
Use this flowSend Invoice by Email using FastBill when New Contact in FreeAgent
Use this flowCreate Revenue in FastBill when New Contact in FreeAgent
Use this flowAdd Payment for Revenue in FastBill when New Contact in FreeAgent
Use this flowCreate Offer in FastBill when New Contact in FreeAgent
Use this flowSearch Customer in FastBill when New Contact in FreeAgent
Use this flowSearch Invoice in FastBill when New Contact in FreeAgent
Use this flowCanceling an Invoice in FastBill when New Contact in FreeAgent
Use this flowEverything you can automate between FastBill and FreeAgent.
When this happensTriggers
A trigger is an event that starts a workflow.
Triggers when a new offer was created within your FastBill account.
Triggers when a new customer is created within your FastBill account.
Triggers when a customer is updated within your FastBill account.
Triggers when a customer is deleted within your FastBill account.
Triggers when a new invoice is created within your FastBill account.
Triggers when an invoice is completed within your FastBill account.
Action is the task that follows automatically within your FastBill integrations.
Creates a new customer in FastBill.
Creates a new invoice.
Adds full payment for an invoice.
Send an invoice by email.
Creates a revenue entry.
Adds full payment for a revenue.

Follow a simple walkthrough to create, test, and launch your first automation.
Connect your apps
Link the apps you want to automate.
Configure your workflow
Set up triggers, actions, and map your data.
Test & publish
Test your workflow and publish it.
Recognized by leading review platforms and trusted by 10,000+ businesses worldwide.
Just describe the task in plain English. viaSocket AI selects the right apps, builds the workflow, maps the fields, and prepares everything for review before you publish.

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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.
Learn moreFreeAgent is a comprehensive accounting software designed to simplify financial management for small businesses and freelancers. It offers features such as invoicing, expense tracking, project management, and tax forecasting, making it an ideal solution for managing business finances efficiently.
Learn moreSign up for a free viaSocket account, then authorize both your FastBill and FreeAgent accounts. From there, pick a trigger in one app and an action in the other. Your first workflow can be live in under five minutes.
Yes. viaSocket uses instant triggers where available, so data moves between FastBill and FreeAgent as soon as the event happens. Scheduled polling triggers run at a maximum interval of 15 minutes.
Yes. You can map specific fields, apply filters to skip records that do not match your conditions, and transform values before they reach FreeAgent. No coding required.
Yes. You can set up a workflow where FastBill triggers actions in FreeAgent, and a separate workflow where FreeAgent triggers actions in FastBill. Both run independently and in real time.
viaSocket logs every run so you can see exactly what succeeded and what failed. Failed tasks can be retried from the dashboard without re-configuring the workflow.
Yes, there is a free plan that covers basic workflows between FastBill and FreeAgent. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire FastBill and FreeAgent integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.