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Challenges Faced by Banks in Self-Developing Agentic AI with Cloud API Services

Written by Sahil Kataria | Dec 3, 2025 10:14:59 AM

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Introduction

Why are banks trying to build their own agentic AI? Banks see agentic AI for banking as the next big step toward smarter, self-learning systems. With cloud API services, many institutions believe they can develop in-house AI agents to reduce costs and keep control of sensitive data. 

But can they really? 

Reports from McKinsey show that while AI could add up to $340 billion in value to global banking, most institutions still struggle with AI governance in banking and compliance readiness. Using public cloud APIs often means limited control over data flow, unclear model traceability, and dependency on third-party systems and these are some of the critical issues that conflict with regulatory expectations. 

So, while the idea of “DIY AI” sounds attractive, the question is: Can banks truly build compliant and autonomous AI just with cloud APIs? 

The illusion of DIY AI in financial institutions

Most of the banks start their AI journey believing that internal teams can build advanced autonomy using only cloud API services. It feels fast, flexible, and cost-efficient. But in practice, this “DIY” path creates blind spots that surface only when scaling into mission-critical workflows. 

Cloud APIs often act like black boxes. Banks can use the intelligence but cannot fully inspect how the model learns, stores, or reasons with financial data. This becomes a major barrier because regulators demand explainable AI for compliance, especially in areas like credit decisions and AML monitoring. 

Another roadblock: internal teams rarely have the resources to embed continuous compliance checkpoints into evolving AI models. So, the risk increases quietly. What begins as a proof-of-concept becomes a compliance challenge the moment the AI influences customer outcomes. 

Here’s the real question: 
If a bank cannot fully audit how an AI model behaves, should it ever control financial decisions? 

This is where the gap widens between DIY AI vs enterprise AI. Enterprise-grade AI platforms are purpose-built for regulated environments, with built-in controls around privacy, traceability, and ethical model behavior. Public clouds are not. 

The compliance roadblocks in building agentic AI through cloud APIs

Compliance is the biggest challenge banks face when developing Agentic AI with cloud APIs. Financial systems run on strict accountability, yet most public cloud APIs offer limited transparency into how data is processed, stored, or repurposed. That alone raises major red flags for regulators. 

When a financial model is trained or deployed through an external cloud API, it often becomes unclear how data is processed, where it’s stored, or whether it’s shared beyond its original intent. This opacity directly conflicts with compliance expectations in banking.

Limited transparency and auditability

One of the most significant AI compliance challenges for banks is that most cloud API providers are not designed for regulatory precision. Their focus lies in scalability and speed, not explainability. 

Without a detailed audit trail, banks cannot validate how an agentic AI system reaches its conclusions. This lack of insight introduces compliance risks, especially when regulators demand proof that decisions are both fair and explainable. 

Cross-border data flow and security risks

Many banks use multi-cloud infrastructures to scale AI workloads. However, financial data often travels across regions and legal jurisdictions in this setup. 
The result is a fragmented compliance landscape where maintaining financial data security with AI becomes complex. Regulators are increasingly questioning whether banks can guarantee that data remains protected when cloud APIs operate beyond national boundaries. 

The hidden cost of compliance gaps

For most institutions, compliance gaps erode trust. A single unexplained data movement can trigger an audit or even a regulatory intervention. This makes explainable AI for compliance not just a technical need but a business necessity. 

In short, compliance cannot be treated as an afterthought in AI development. It must be built into the architecture from the beginning. That is why banks relying solely on cloud API-based AI find themselves constrained—they inherit systems not designed to meet the depth of governance and control the financial sector demands. 

How RegTech Is reshaping AI governance in banking

In banking, every automated credit decision, transaction monitoring alert, or fraud detection flag must trace back to a verifiable logic trail. This is where traditional cloud API-based AI often falls short. Most APIs deliver functionality, not accountability. 
Agentic AI changes that dynamic. When designed within a RegTech framework, it embeds regulatory logic directly into model workflows. Instead of waiting for post-audit corrections, the system self-validates each decision against internal compliance rules and external frameworks like Basel IIIGDPR, and AI governance in banking. 

Why banks can’t rely on cloud APIs alone ?

Many institutions attempt to self-develop AI using cloud API services to reduce dependency on enterprise platforms. Yet, the challenges of DIY AI for financial institutions are systemic. 

Cloud APIs provide model outputs, but they rarely expose the data handling and model reasoning layers that regulators care about. When an AI model flags a transaction as suspicious, compliance teams need to know why. Without access to model logic, that explainability breaks down. 

This makes why banks can’t build agentic AI with just cloud APIs not a budget problem, but a regulatory one. The cloud API limitations in finance are rooted in a lack of visibility, controllable data lineage, and explainable audit logs, all essentials in banking supervision. 

Integrating RegTech into agentic AI frameworks

Banks that succeed in automation treat RegTech and agentic AI solutions as architectural pillars, not plug-ins. These solutions monitor risk metrics in real time, map evolving regulatory changes to internal processes, and ensure compliance-driven model retraining. 


For instance, when a new anti-money laundering directive is issued, a RegTech-enabled AI system can automatically recalibrate thresholds across KYC and transaction monitoring engines. This reduces both human intervention and regulatory exposure. That’s AI-driven regulatory technology (RegTech) operating as a control layer rather than a reactionary tool. 

Compliance as a competitive advantage

Top-performing banks have realized that compliance is a market differentiator. A secure and compliant AI solution for financial services doesn’t just meet legal standards but also increases investor confidence, speeds up onboarding with digital regulators, and supports multi-region operations without friction. 

As the industry shifts from reactive compliance to predictive oversight, agentic AI for banking enables systems that identify anomalies, predict breaches, and correct data inconsistencies before they reach the regulator’s radar. 

Why DIY AI models struggle in regulated banking environments ?

The reality behind “Do-It-Yourself” AI 

Many banks start their AI journey using cloud API services. It seems fast and cost-effective. But speed often replaces control. In regulated banking, that trade-off can be risky. 

Cloud APIs offer access to AI features, not ownership of how they work. Once financial data flows through an external model, visibility starts to fade. Banks lose clarity on how data is processed, stored, or reused. This gap creates serious AI compliance challenges for banks. Every untraceable output adds a new layer of audit risk. 

Governance gaps and the “Black Box” effect

In finance, no algorithm should be a mystery. Regulators demand that every automated decision is traceable and explainable. 

DIY AI models often depend on pre-trained cloud modules. These models operate as “black boxes,” offering results without showing their reasoning. Compliance teams can’t verify how a loan was denied or why a transaction was flagged. This is where DIY AI vs enterprise AI becomes a critical distinction. 

Enterprise-grade agentic AI for banking eliminates this opacity. It integrates explainable AI for compliance and full data lineage tracking. Every action the AI takes can be reviewed, audited, and justified. That is what regulators expect from a trusted financial system.

Cloud APIs can’t keep up with compliance

The cloud API limitations in finance go deeper than security. APIs were built for accessibility, not regulatory control. They lack tools for AI governance in banking or multi-jurisdiction compliance tracking. 

As data moves between servers or regions, compliance oversight weakens. Banks spend more time managing exceptions than improving performance. What began as a quick solution turns into a long-term compliance burden. 

The enterprise-grade difference

Enterprise AI platforms change this dynamic completely. They are designed for secure and compliant AI solutions for financial services. 
They include: 

  • Encrypted and region-specific data management 
  • Continuous regulatory tracking through AI-driven regulatory technology (RegTech) 
  • Predictive alerts before potential violations occur 
  • Built-in alignment with regulatory frameworks 

These systems transform compliance into a proactive advantage. A recent McKinsey report found that banks using explainable and traceable AI frameworks reduced regulatory incidents by nearly 40%.  While meeting compliances, enterprise solutions also strengthen customer trust and operational confidence. 

Conclusion

Banks have learned that building autonomous AI through cloud APIs alone is not enough. Real progress comes from developing systems that combine intelligence, accountability, and compliance in equal measure. The next generation of Agentic AI in finance will not be defined by how fast it learns, but by how transparently it operates. 

Cloud-native models can accelerate innovation, but they often miss the deep governance, data lineage, and security layers required for financial-grade deployment. That’s where enterprise-ready AI frameworks like FluxForce AI make the difference by offering prebuilt, compliant, and secure AI modules that automate fraud detection, regulatory monitoring, and decision workflows with measurable precision. 

In today’s financial landscape, trust is earned through systems that prove reliability. The future of banking AI belongs to those who combine innovation with assurance, creating AI that doesn’t just act intelligently but behaves responsibly. 

Frequently Asked Questions

Cloud APIs offer speed but not the AI governance in banking that regulators demand. Without internal data controls or compliance integration, banks risk losing transparency over decision-making processes.
Agentic AI for banking focuses on autonomy and decision reasoning. Unlike traditional models that follow static commands, Agentic AI learns and acts contextually but requires strict oversight to stay compliant.
Cloud API limitations in finance include restricted data lineage, vendor dependence, and compliance blind spots. This makes it hard for banks to maintain regulatory traceability and audit readiness.
Not entirely. DIY AI vs enterprise AI debates often end with one fact — DIY models can’t easily scale with compliance and cybersecurity demands. Enterprise-grade systems offer prevalidated, auditable frameworks.
Heavy AI compliance challenges for banks from data residency to explainability, delay production rollouts. Without embedded compliance logic, every AI upgrade becomes a regulatory hurdle.
Cloud-native AI risks for regulated industries include cross-border data leaks, non-auditable models, and opaque decision pathways. These undermine both trust and regulatory certification.
Explainable AI for compliance gives auditors insight into why AI made specific choices. It’s essential for credit scoring, AML, and fraud detection, where every automated decision must be defensible.
RegTech and Agentic AI solutions simplify governance. They embed rules for KYC, AML, and transaction reporting directly into models—reducing manual audits and compliance overhead.
Predefined dispute-resolution protocols activate hierarchical evidence checks. If autonomous reconciliation fails, smart contracts escalate to human arbitration, ensuring transactional accuracy while minimizing settlement delays and maintaining accountability.
Unlike basic APIs, enterprise-grade AI vs cloud API-based AI for banks ensures integration with internal systems for full traceability, secure data flows, and consistent risk modeling.
Expect convergence. AI-driven regulatory technology will merge automation, explainability, and privacy-preserving computation into one unified compliance layer for financial ecosystems.
Legacy systems lack real-time processing, require manual data consolidation, cannot adapt to new regulations quickly, demand high maintenance costs, and create collaboration gaps between audit and risk teams.