Commerce & Payments · Integration
Adyen
Add Adyen to your product for your customers, and give your AI agents governed access to it.
Embed an Adyen integration so your customers can work their payments, refunds, and payouts from inside your product, with governed agent access to the same records. Writes are idempotent so a retry cannot double-apply a transaction, and every call is logged per tenant for reconciliation. fastn handles authentication and API upkeep per customer.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers read payments and settlement detail into your product.
Issue refunds or captures from your product with idempotent writes.
Read payout and settlement records so finance can reconcile inside your product.
Trigger your product when a payment succeeds, fails, or is disputed.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent looks up a payment's status and history before answering a customer.
An agent issues a refund within governed permissions and records the reason.
An agent reacts to a chargeback notification and gathers the evidence needed.
Example prompt
Find disputed payments opened this week and summarise the reason code and amount for each.
Set up Adyen in 4 steps
- 01Open the Adyen connector from your fastn dashboard.
- 02Have each customer authenticate their Adyen account with the required scopes.
- 03Map the payment, refund, and payout 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 Adyen integration
What you get by embedding it with fastn instead of building it yourself.
- Ship an Adyen integration without building it. Your customers connect their own Adyen 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 Adyen update is not your on-call problem.
- One integration serves your product and your agents. The same governed Adyen 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
Checkout.com
BraintreeOften used alongside
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DocusignAdyen integration FAQ
How do I add an Adyen integration to my product?
Enable the Adyen connector in your fastn dashboard, then let each customer authenticate their own Adyen account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Adyen client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Adyen account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Adyen 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 Adyen 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 looks up a payment's status and history before answering a customer.
Who maintains the Adyen integration?
fastn does. When Adyen 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 Adyen 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 Adyen integration?
A common starting point: read payments and settlement detail into your product. 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 Adyen integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Adyen does not change your per-connector cost. You can start free with 3 connected accounts.
Add Adyen to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.