v1
latestOpenAPI 3.1.0MIT2026-07-211097127.9 KBUpdate Sub-Account
Update sub-account details and account holder information.
post/merchant/open/institution/v1/accounts/update
Headers
X-GatePay-Certificate-ClientIdstring required
Example:4186d0c6-6a35-55a9-8dc6-5312769dbff8
The clientId assigned when the merchant registers an application in the Gate merchant console.
X-GatePay-Timestampstring required
Example:1672905655498
UTC timestamp in milliseconds when the request is generated. GatePay will not process requests where the difference from the receive time exceeds 10 seconds.
X-GatePay-Noncestring required
Example:9578
Random string. Must comply with HTTP header rules; recommended length is within 32 characters, composed of digits and letters.
X-GatePay-Signaturestring required
Request signature. GatePay uses this signature to verify whether the request is valid.
X-GatePay-On-Behalf-Ofstring required
Required delegated subject header. Provide the initiating account ID for this transaction. It can be an institution account ID or a sub-account ID.
Request body
Response
Success