From Chaos to Control: How Kong AI Gateway Streamlined My GenAI Application
In this post, Kong Champion Sachin Ghumbre shares his journey of transforming a complex GenAI application from a state of operational challenges to streamlined control. Discover how Kong AI Gateway provided the enterprise-grade governance needed to secure, optimize, and scale his GenAI solution, tackling issues from escalating LLM costs to prompt injection risks.
š§ The challenge: Scaling GenAI with governance
While building a GenAI-powered agent for one of our company websites, I integrated components like LLM APIs, embedding models, and a RAG (Retrieval-Augmented Generation) pipeline. The application was deployed using a Flask API backend and secured with API keys.
However, post-deployment, several operational challenges emerged:
- Escalating LLM usage costs
- Security risks from exposed API keys and prompt injection
- Limited observability into prompt flows, token usage, and latency
- Difficulty in maintaining and scaling the API infrastructure
It became clear that while the GenAI logic was sound, the API layer lacked enterprise-grade governance. Thatās when I turned to Kong Gateway, specifically its AI Gateway capabilities.
š¤ Why Kong Gateway for GenAI?
Kong isnāt just a traditional API gateway; it now offers a dedicated AI Gateway designed to meet the unique demands of GenAI workloads. Hereās what makes it ideal:
- AI Manager: Centralized control plane for LLM APIs
- One-Click API Exposure: Secure and governed API publishing
- Secure Key Management: Store secrets in Kong Vault
- Prompt Guard Plugin: Prevent prompt injection attacks
- Semantic Routing: Route prompts based on intent/context
- RAG Pipeline Simplification: Offload orchestration to the gateway
- Caching & Optimization: Reduce token usage and latency
- Observability & Analytics: Monitor usage, latency, and cost
- Rate Limiting & Quotas: Control overuse and manage budgets
- Future-Ready: Support for multi-agent protocols like MCP and A2A
These features allowed me to shift complexity away from the backend and focus on GenAI logic.
š§± Architecture overview
This architecture, built on AWS, leverages Kong Gateway to securely manage interactions between internal services and external LLM providers. The environment described reflects my development setup, including AWS services and supporting technologies.Ā
For production deployments, I recommend evaluating and adopting a more robust technology stack and configuration to ensure enhanced security, compliance, scalability, and high availability.
š Challenge vs. solution matrix
1. AWS Infrastructure
- VPC with public/private subnets
- Public Subnet: Kong Gateway EC2 (Data Plane Node)
- Private Subnet: PostgreSQL for embeddings/chat history
- S3 Bucket: Hosts React-based agent frontend
Ā 2. Kong Gateway Components
- Kong Gateway EC2: Kong Gateway data plane on EC2 that applies plugins for rate limiting, guard, caching, prompt decorating, AI proxy, prompt template, etc.
- Kong Konnect: Manages configuration, policies, and analytics
3. External LLM Integration
- Gemini 2.0 Flash Model: Kong acts as a secure proxy to this external LLM
š Data Flow Overview
1. User interacts with GenAI agent (S3-hosted React app)
2. Request sent to Kong Gateway
3. Kong routes request, queries DB if needed, forwards to Gemini
4. Response returned via Kong to GenAI agentĀ

Conclusion
Building a GenAI application is only half the battle; the real complexity begins when scaling, securing, and monitoring it in production.
By integrating Kong Gateway and its AI-specific capabilities, I was able to:
- Centralize and secure LLM APIs
- Monitor and optimize token usage
- Prevent prompt injection
- Simplify RAG orchestration
- Enable scalable, governed access to GenAI services
Kongās AI Gateway isnāt just an API wrapper; itās a purpose-built control layer for modern AI workloads. If you're building GenAI applications in production, I highly recommend exploring Kongās capabilities to future-proof your architecture.
AI-powered API security? Yes please!
