Managing Open Banking Integration

Managing Open Banking Integration

When To Use

• Onboarding a new third-party provider (TPP) or data aggregator that needs API access to customer accounts
• Evaluating or upgrading an existing open banking platform (e.g., migrating from screen-scraping to API-based access)
• Preparing for regulatory compliance under PSD2, Open Banking Standard (UK), Consumer Data Right (AU), or CFPB Section 1033 (US) [VERIFY jurisdiction-specific framework]
• Designing or auditing the consent lifecycle for customer-permissioned data sharing
• Coordinating multi-party integration across account-servicing payment service providers (ASPSPs), payment initiation service providers (PISPs), and account information service providers (AISPs)

Inputs To Gather

• Regulatory scope: Applicable open banking regime and mandatory API standards (Berlin Group NextGenPSD2, UK OBIE, FDX, etc.) [VERIFY which standard governs the target market]
• API specification: Target version of the open banking API spec, supported endpoints (AIS, PIS, CBPII), and sandbox/production URLs
• TPP registry entries: Provider eIDAS certificates or registry status (e.g., FCA register, national competent authority directory) [VERIFY registry source]
• Consent parameters: Data clusters to be shared (account balances, transaction history, standing orders), consent duration, and re-authorization cadence
• Current architecture: Existing core banking APIs, middleware/gateway stack, authentication protocols (OAuth 2.0 / FAPI profile), and token management approach
• Security posture: TLS requirements, certificate pinning policy, mutual TLS (mTLS) configuration, and penetration test schedules
• Customer experience flows: Screen mockups or journey maps for consent grant, dashboard management, and consent revocation

Workflow

1. Scope the integration

   • Identify participating roles: ASPSP, AISP, PISP, CBPII provider
   • Confirm regulatory classification of each party and required permissions [VERIFY license/registration status of each TPP]
   • Define data-sharing perimeter: which account types, data fields, and payment rails are in scope

2. Map the consent lifecycle

   • Design the Strong Customer Authentication (SCA) flow for initial consent grant (redirect vs. decoupled vs. embedded approach)
   • Define consent object attributes: permissions requested, expiration policy, frequency-of-access limits
   • Specify re-authorization triggers (90-day SCA renewal under PSD2 RTS, or equivalent) [VERIFY re-auth cadence per local regulation]
   • Document revocation paths: customer-initiated (dashboard, call center), TPP-initiated, and ASPSP-initiated

3. Configure API gateway and security layer

   • Register TPP client credentials; validate eIDAS QWAC/QSeal certificates or equivalent [VERIFY certificate scheme]
   • Implement OAuth 2.0 authorization code flow with PKCE; enforce FAPI 1.0 Advanced or FAPI 2.0 profile if required
   • Enable mTLS between TPP and ASPSP; configure certificate rotation schedules
   • Set rate limits, throttling tiers, and error-response standards per API specification

4. Build and test data-sharing endpoints

   • Implement account information endpoints (GET /accounts, GET /transactions, GET /balances) conforming to target spec
   • Implement payment initiation endpoints if PIS is in scope (POST /payments, GET /payment-status)
   • Validate response payloads against official schema validators (e.g., OBIE Conformance Suite, Berlin Group test harness)
   • Run functional, performance, and negative-path test suites in sandbox before production cutover

5. Establish operational monitoring

   • Instrument API availability and latency dashboards; define SLA thresholds (e.g., 99.5% uptime, <500 ms P95 latency) [VERIFY SLA commitments per regulatory mandate]
   • Set up alerting for consent anomalies: unusual spike in consent grants, bulk revocations, or repeated SCA failures
   • Create incident-response runbook for data-breach scenarios involving shared account data
   • Schedule quarterly TPP access reviews and annual penetration tests

6. Compile integration report

   • Summarize integration status per TPP: onboarded, in testing, blocked, decommissioned
   • Document outstanding issues, dependency risks, and remediation timelines
   • Include consent analytics: active consent volume, revocation rates, re-authorization success rates
   • Flag items requiring escalation to compliance, information security, or executive stakeholders

Output

The deliverable is a Management Report containing:

• Integration status matrix: TPP name, role (AISP/PISP/CBPII), onboarding stage, go-live date, and current health status
• Consent lifecycle summary: Flow diagrams, consent duration policies, re-authorization schedule, and revocation statistics
• Security configuration record: Authentication profile, certificate details, mTLS status, rate-limit settings, and last penetration test date
• API performance dashboard snapshot: Uptime percentage, latency percentiles, error rates, and SLA compliance
• Risk and issue log: Open items with severity, owner, and target resolution date
• Recommendations: Next-phase integrations, spec version upgrades, or regulatory changes requiring action

Quality Checks

• Every TPP listed has a verified registration/license entry in the applicable regulatory directory [VERIFY]
• Consent flows comply with SCA requirements for the governing regulation; 90-day re-auth rule addressed if PSD2 applies [VERIFY]
• API responses validated against the official schema; no undocumented fields exposed
• Security configuration meets or exceeds FAPI profile requirements; mTLS enforced for all production traffic
• Rate limits and error codes align with the published API specification
• Report includes no inferred compliance statuses — any unconfirmed item is marked [VERIFY]
• Customer-facing consent language reviewed for clarity and completeness (plain-language requirement under most regimes) [VERIFY]