adyen

Adyen through One

Adyen is a financial technology platform that enables businesses to accept, process, and manage payments across online, mobile, and in-store channels while offering data insights, fraud prevention, and embedded financial products through a single unified API.

One exposes Adyen through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform adyen if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Adyen is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Adyen account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Payments

Action	Method	Path	Action id
Cancel an Authorisation	POST	/pal/servlet/Payment/v68/cancel	conn_mod_def::GKJ8fUe2EDg::zxRIcqwmRCKl8LwsYIcIMw
Cancel an Authorisation Using Your Reference	POST	/pal/servlet/Payment/v68/technicalCancel	conn_mod_def::GKJ8fWLhnVA::YTBS0amZTRS4oN5jsHrjqQ
Cancel an Authorised Payment	POST	/v71/payments/{{paymentPspReference}}/cancels	conn_mod_def::GKJ8W2atrTg::-6iIYN7NSAavKzOUUtK-NA
Cancel an In-Person Refund	POST	/pal/servlet/Payment/v68/voidPendingRefund	conn_mod_def::GKJ8fUvQR7A::cIGGAQZlSd-ejaaA5GOfyQ
Cancel or Refund a Payment	POST	/pal/servlet/Payment/v68/cancelOrRefund	conn_mod_def::GKJ8fUSR9Kg::VUEY1QDDQOCwMlyl4f_Gyg
Capture an Authorisation	POST	/pal/servlet/Payment/v68/capture	conn_mod_def::GKJ8fXMU2Lg::PNbEzXXMQZGNb8alUo0Y8Q
Capture an Authorised Payment	POST	/payments/{{paymentPspReference}}/captures	conn_mod_def::GKJ8W4EH1Ng::01qveUkmR4Cr3rksTp966A
Change the Authorised Amount	POST	/pal/servlet/Payment/v68/adjustAuthorisation	conn_mod_def::GKJ8fgmsLVg::CSxeOJYTTXuzxr6DwILrqw
Complete a 3DS Authorisation	POST	/pal/servlet/Payment/v68/authorise3d	conn_mod_def::GKJ8fiVSsug::g9gtoOKCQ-ePr9hSxcQanA
Complete a 3DS2 Authorisation	POST	/pal/servlet/Payment/v68/authorise3ds2	conn_mod_def::GKJ8fiUkyQA::OOoNFLiASUmPb4nNWm_Jig
Refund a Captured Payment	POST	/pal/servlet/Payment/v68/refund	conn_mod_def::GKJ8frYiJ-A::oQ7kHDXPR5e71T5ykZ3KPw
Refund a Captured Payment	POST	/payments/{{paymentPspReference}}/refunds	conn_mod_def::GKJ8XrqWf4A::d0pQHno0ROqp-i4-98xDJA