Open banking and financial-grade APIs: what IAM teams need to know

TL;DR: Open banking in North and South American financial services is accelerating API-first customer experiences, but the real dependency is financial-grade APIs interacting with enterprise IAM standards, according to Ping Identity. The governance challenge is not just customer experience, but whether identity and access controls can keep pace with standards-based data sharing and trust relationships.

NHIMG editorial — based on content published by Ping Identity: Open banking is rapidly becoming a critical plank of digital innovation in financial services

Questions worth separating out

Q: How should IAM teams govern access in open banking environments?

A: IAM teams should govern open banking as a multi-party access problem, not a simple login problem.

Q: Why do financial-grade APIs matter for identity governance?

A: Financial-grade APIs matter because they raise the assurance required for regulated data sharing and make identity decisions part of the trust model.

Q: What do security teams get wrong about API-first banking?

A: They often focus on integration speed and customer experience while underestimating the number of identities involved in each access path.

Practitioner guidance

• Map API trust to identity controls Inventory which financial-grade API flows depend on customer identity, application identity, and service credentials, then map each flow to the controlling IAM policy and revocation path.
• Separate consent from authentication governance Treat user authentication, consent capture, and delegated authorisation as distinct control points so that access decisions can be reviewed and revoked independently.
• Review token and client credential lifecycle Check whether API tokens, client secrets, and certificates are rotated, scoped, and retired on a schedule that matches partner and customer relationship changes.

What's in the full article

Ping Identity's full article covers the operational detail this post intentionally leaves for the source:

• Standards references and implementation context for financial-grade APIs in banking environments
• The specific customer-experience trends the vendor says are reshaping financial services
• How API-first design changes the relationship between trust, personalisation, and identity control
• The vendor's view of how incumbent banks can use underlying investments to compete

👉 Read Ping Identity's analysis of open banking, financial-grade APIs, and IAM →

Open banking and financial-grade APIs: what IAM teams need to know?

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