AI Hallucination ResearchFindings by audienceSectorsInternational / MultilateralPayment InstitutionsRisk › Promoting the Harmonisation of Application Programming Interfaces to Enhance Cross-Border Payments: Recommendations and Toolkit
Payment Institutions × Risk — International / Multilateral · Last updated 11 Jun 2026 · methodology v2.3 · Hallucination Register
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AI Hallucination on Promoting the Harmonisation of Application Programming Interfaces to Enhance Cross-Border Payments: Recommendations and Toolkit for Risk teams at Payment Institutions firms in international jurisdictions

Payment Institutions Risk teams: documentation and reporting gaps possible from AI reading of CPMI Cross-Border API Harmonisation 2024

Risk leads at payment institutions running cross-border rails on the CPMI API harmonisation programme are increasingly using AI to update payment-risk dashboards with CPMI connectivity figures, draft enterprise-risk-assessment annexes on the SARB pre-validation workstream, prepare board-risk-appetite papers, generate operational-risk metrics using fast payment system operator splits, and verify dated CPMI commitments against primary publications. The RLB Specialist Panel tested how that AI usage performs against the regulator's own primary text on CPMI's October 2024 d224 report and the related CPMI Brief and speech series. The audit surfaced four substantive failure modes that the AI subjects delivered with regulator-fluent confidence.

Stakeholder Taxonomy Fabrication and Numeric Drift on CPMI API Harmonisation for Cross-Border Payments. Two frontier AI models tested by the RLB Specialist Panel returned confident, citable answers across the panel's CPMI substrate-bound question set on the October 2024 d224 report and the related CPMI Brief and speech series. The panel binds each AI finding to verbatim regulator-issued source text held as primary substrate.

Across the 2 findings in this Risk teams at Payment Institutions briefing, the AI subjects built a recommendation-by-recommendation stakeholder breakdown from category names rather than the regulator's actual recommendation text; returned a global fast payment system count of 57 sourced to the 2025 monitoring survey sample, when the authoritative CPMI figure is 70+.

A board-risk paper that records a CPMI cutover date the regulator never set is a factual error in a board-approved risk-appetite document. A risk dashboard that uses 57 rather than 70+ as the FPS connectivity baseline mis-sizes corridor exposure. An enterprise risk register entry recording 'no SARB pre-validation workstream identified' carries a verifiable error into a supervisory deliverable.

The findings are published with immutable RLB Citation IDs: RLB-H-INT-BIS-CPMI-API-HARMONISATION-CROSS-BORDER-2024-Q008-Opus47, RLB-H-INT-BIS-CPMI-API-HARMONISATION-CROSS-BORDER-2024-Q010-Opus47. The full audit is published at the CPMI API Harmonisation for Cross-Border Payments hub on RegLegBrief.com.

Risk teams in payment institutions calibrate corridor-concentration, FMI-exposure and operational-resilience metrics against two CPMI inputs: which d224 recommendations actually create PI-side obligation versus operator-side obligation, and the global FPS count and operator-mix denominators that anchor concentration ratios. Two AI failures on this regulation hit those two inputs. Opus 4.7 returned a reconstructed stakeholder taxonomy on the 10 d224 recommendations, and Opus 4.7 returned a compressed 57-FPS count with no operator-mix breakdown. The Tara Rice November 2023 speech (sp231115) supplies the right denominator set.

A risk-appetite paper built on either AI answer enters risk committee with misallocated obligation scope and an inflated concentration ratio against the wrong denominator.

What the AI got wrong, and why it matters here

Both failures land where risk depends on tight numerical or scope detail: a stakeholder mapping that drives obligation routing, and an FPS denominator that drives concentration ratios.

Finding 1: Reconstructed per-recommendation stakeholder taxonomy

Opus 4.7 returned a clean stakeholder taxonomy across d224's 10 recommendations, built from category labels rather than the recommendation text. A PI risk-appetite paper written off that taxonomy will misroute obligation scope between the PI and its system-operator counterparty.

Citation: RLB-H-INT-BIS-CPMI-API-HARMONISATION-CROSS-BORDER-2024-Q008-Opus47.

Finding 2: Compressed FPS denominator

Opus 4.7 cited the 2025 monitoring survey at 57 operational FPS with no operator-type breakdown. sp231115 gives 70-plus operational, 14 cross-border-enabled and a 40%/35% operator mix. A concentration ratio built on the AI denominator inflates exposure share materially and strips operator-type differentiation.

Citation: RLB-H-INT-BIS-CPMI-API-HARMONISATION-CROSS-BORDER-2024-Q010-Opus47.

When this hits the risk calendar

PI risk pulls CPMI material on three artefacts: the corridor-concentration paper, the FMI-exposure note for the system-operator integration, and the annual risk-appetite calibration.

Standing item Where the AI risk surfaces Failure mode
Corridor-concentration paper FPS denominator and operator mix Finding 2
FMI-exposure note for the system-operator integration Stakeholder-obligation taxonomy Finding 1
Annual risk-appetite calibration Both Both

Aggregate impact on the team

The fabricated taxonomy misroutes the obligation scope; the compressed FPS denominator inflates the concentration ratio. Together, they corrupt both the numerator-side and the denominator-side of the corridor-concentration view.

Risk ImpactCountAffected findings
0

What this team should do

Tag the d224 stakeholder taxonomy and any AI-quoted FPS count as known-failure outputs. Any draft containing either must be returned through a primary-source check (d224 recommendation text and sp231115) before it lands in a risk-appetite paper or a corridor-concentration view.

Detection patterns to add to AI-review

  • Stakeholder taxonomies on d224 must be verified against the recommendation text.
  • FPS denominators must trace to sp231115 or to a numbered CPMI brief.

How RLB can help

RLB tracks AI failures on d224 and the CPMI cross-border-payments brief series and refreshes the catalogue against live AI subjects on rotation. PI risk can wire the catalogue into the risk-paper review step so these two failure shapes are caught before they reach risk committee.

Every finding on this page compares an AI subject's account of the rule against the regulator's verbatim text from the regulator's own portal. Both are linked. Each delta, its root causes, and impact analysis are documented and published with immutable Citation IDs.