Open Banking Core Platform
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Sequence Diagram
End-to-End Open Banking Connection Flow via Account Broker
Connected Bank(s)
(e.g., Barclays, HSBC, Moty)
Third-Party App
(AHS App)
Connected Bank(s)
(e.g., Barclays, HSBC, monzo)
Third-Party App
(AHS App Frontend)
alt
[Consent approved]
[Consent denied]
User
(End User/PSU)
Account Broker
(AHS Backend)
Ask to connect bank account
Present list of banks
Select Monzo Bank
Redirect to Monzo Bank login page
User
(End User/PSU)
Account Broker
(AHS Backend)
User can revoke access anytime via bank
🗂Data Shared
Account details (e.g., balance, account number) &Transaction history (usually last 90 days)
🕒 Access Duration
Access valid for up to 90 days (renewable), User can revoke consent at any time
📤 Data Recipient
AHS (Third-Party Provider/TPP) , Only used for purposes the user has agreed to
🔐 Security & Control
Consent handled using secure OB protocols , User can manage permissions via bank or app
Colour Legend
