Commerce & Payments · Integration
Invoiced
Add Invoiced to your product for your customers, and give your AI agents governed access to it.
Embed an Invoiced integration so your customers can bill and collect from inside your product using their own account. Writes are idempotent, so a retry after a timeout cannot raise the same invoice twice or double-apply a payment, and every call is logged per tenant so a transaction can be reconciled against the event that triggered it. fastn handles per-customer credentials, event delivery, and API upkeep.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers raise an invoice from your product against their own Invoiced account, idempotently.
Read payment and balance data so your product can show what is actually outstanding.
Create or update customer records so billing details captured in your product stay current.
Trigger your product when an invoice is paid, fails, or becomes overdue.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent reads an account's outstanding balance and payment history before drafting a reminder.
An agent raises or voids an invoice within governed permissions, idempotently, with the call logged.
An agent reacts to a payment landing and runs the next entitlement or accounting step.
Example prompt
List invoices more than 30 days overdue and show the last payment recorded for each account.
Set up Invoiced in 4 steps
- 01Open the Invoiced connector from your fastn dashboard.
- 02Have each customer authenticate their own Invoiced account.
- 03Map the invoice, payment, and customer fields your product uses, then enable actions and triggers.
- 04Call them from your product, or expose them to an agent through the MCP server.
Why teams use the Invoiced integration
What you get by embedding it with fastn instead of building it yourself.
- Ship an Invoiced integration without building it. Your customers connect their own Invoiced account inside your product and work their orders, payments and customers there, with no per-customer code on your side.
- Handle the part that actually costs time: money and order state must never be double-applied, and reconciliation has to be possible. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so an Invoiced update is not your on-call problem.
- One integration serves your product and your agents. The same governed Invoiced connection powers in-product features and gives AI agents scoped, audited access, so you keep commerce and payment records in step with your product without wiring it twice.
Used by these teams
Compare with
Stripe
ChargebeeWorks well with
QuickBooksOften used alongside
Tools the same teams tend to run next to Invoiced, across other categories.
NetSuite
Notion
Box
DocusignInvoiced integration FAQ
How do I add an Invoiced integration to my product?
Enable the Invoiced connector in your fastn dashboard, then let each customer authenticate their own Invoiced account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Invoiced client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Invoiced account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Invoiced account and only ever sees their own orders, payments and customers. 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 Invoiced 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 reads an account's outstanding balance and payment history before drafting a reminder.
Who maintains the Invoiced integration?
fastn does. When Invoiced 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 Invoiced integration safe for payment and order writes?
Writes are idempotent, so a retry cannot double-charge or duplicate an order, and every call is logged per tenant so a transaction can be reconciled against the event that triggered it.
Can my product react to a new order, payment or refund immediately?
Yes, through event triggers, so fulfilment, entitlement or accounting steps run as soon as the event lands rather than on a nightly sync.
What can I build with the Invoiced integration?
A common starting point: raise an invoice from your product against their own Invoiced account, idempotently. 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 Invoiced integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Invoiced does not change your per-connector cost. You can start free with 3 connected accounts.
Add Invoiced to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.