Finance & ERP · Integration
Moneybird
Add Moneybird to your product for your customers, and give your AI agents governed access to it.
Moneybird is the bookkeeping tool many Dutch small businesses and freelancers run on, and its structure is worth knowing before you build: everything hangs off an administration, and one user can hold several. An embedded Moneybird integration lets your product create sales and recurring sales invoices, register purchase invoices, read contacts and ledger accounts, and check financial mutations to see what has been paid. Dutch specifics matter as well, from BTW rates and reverse-charge rules to UBL and Peppol e-invoicing and IBAN-based matching. Limits apply per administration, so a first import needs pacing. fastn holds each administration's token and takes care of the pacing and the upkeep.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let a customer connect their own Moneybird administration and pick which one your product bills from.
Create sales invoices in your product's flow using that administration's own numbering series and VAT rates.
Register purchase invoices and receipts so a bookkeeper is not entering them a second time.
Check financial mutations to match payments to invoices and mark what has been settled.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent lists sales invoices past their due date for one administration and drafts a reminder in Dutch or English.
An agent checks which VAT rate an invoice line used before it answers a question about a return.
An agent registers a purchase invoice within the permissions granted, with the ledger account it chose on record.
Example prompt
Which sales invoices in this administration are unpaid past their due date, and what is the total?
Set up Moneybird in 4 steps
- 01Enable the Moneybird connector from your fastn dashboard.
- 02Have each customer authorise their own Moneybird account, so calls run under their credentials rather than a shared key.
- 03Decide which invoices, payments and vendors your product needs, map those fields, then enable the actions and triggers you want.
- 04Call it from your product and expose it to your agents through the same governed connection.
Why teams use the Moneybird integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Moneybird integration without building it. Your customers connect their own Moneybird account inside your product and work their invoices, payments and vendors there, with no per-customer code on your side.
- Handle the part that actually costs time: financial writes must be idempotent and reconcilable, because a duplicate is an accounting problem rather than a bug. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a Moneybird update is not your on-call problem.
- One integration serves your product and your agents. The same governed Moneybird connection powers in-product features and gives AI agents scoped, audited access, so you move financial records without hand-keying them between systems without wiring it twice.
Used by these teams
Compare with
Exact Online
Xero
QuickBooksOften used alongside
Tools the same teams tend to run next to Moneybird, across other categories.
Shopify
Stripe
BigCommerce
AfterShipMoneybird integration FAQ
How do I add a Moneybird integration to my product?
Enable the Moneybird connector in your fastn dashboard, then let each customer authenticate their own Moneybird account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Moneybird client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Moneybird account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Moneybird account and only ever sees their own invoices, payments and vendors. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this Moneybird integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent lists sales invoices past their due date for one administration and drafts a reminder in Dutch or English.
Who maintains the Moneybird integration?
fastn does. When Moneybird changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Is the Moneybird integration safe for financial writes?
Writes are idempotent, so a retry after a timeout does not post a document twice, and every call is logged per tenant so an entry can be traced back to the event that created it. That matters more in finance than anywhere else, because a duplicate is a number somebody has to explain.
Can it handle each customer's own chart of accounts?
Yes. ERP deployments are configured to the business, so account structures, required fields and fiscal calendars differ per customer. Those are mapped per tenant as configuration, not hard-coded.
What about Moneybird rate limits during a first import?
Backfills are throttled deliberately. ERP limits are often account-wide rather than per-integration, so an unthrottled import can exhaust a customer's allowance and disrupt their other integrations.
What can I build with the Moneybird integration?
A common starting point: let a customer connect their own Moneybird administration and pick which one your product bills from. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the Moneybird integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Moneybird does not change your per-connector cost. You can start free with 3 connected accounts.
Add Moneybird to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.