AI gateways
This cluster covers everything you need to understand, evaluate, and operate an AI gateway — from what they are and how they differ from traditional API gateways, to advanced topics like semantic caching, prompt injection defense, multi-model routing, and observability. These guides help you build an AI infrastructure layer that's reliable, cost-efficient, and secure.
Articles
9 of 13 publishedWhat Is an AI Gateway? (And Do You Need One?)
A complete introduction to AI gateways: what they do, how they differ from API gateways, and when you need one.
AI Gateway vs API Gateway
What an AI gateway adds on top of a traditional API gateway, and when you need both in your stack.
AI Gateway Comparison 2026
LiteLLM, Portkey, Kong AI Gateway, WSO2 AI Gateway, and others compared on routing, security, and observability.
AI Gateway Security
Input validation, output filtering, PII redaction, and prompt injection detection at the AI gateway layer.
LiteLLM Alternatives
Alternatives to LiteLLM for multi-model routing, evaluated on enterprise readiness, governance, and support.
Semantic Caching for LLM APIs
How semantic caching reduces LLM costs and latency by reusing responses to semantically similar queries.
Multi-Model Routing in AI Gateways
Cost routing, latency routing, capability routing, and fallback chains for resilient multi-model deployments.
Prompt Injection Defense
How AI gateways detect and block prompt injection attacks in user-facing LLM applications at scale.
PII Redaction for LLM Traffic
Automatically detecting and masking personally identifiable information before it reaches an LLM.
Token Budgets and Cost Controls
How to enforce per-user, per-app, and per-model token budgets and spend caps in your AI gateway.
Fallback Strategies for LLM APIs
Handling model downtime, context length errors, and rate limits with automatic fallback routing.
AI Gateway Observability
Tracing, logging, and metrics for AI gateways: what to instrument and what dashboards to build.
AI Gateway for Self-Hosted Models
Using an AI gateway as a unified front door for on-premise and cloud LLM deployments.
Explore WSO2's AI Gateway capabilities
WSO2 AI Gateway provides routing, rate limiting, security policies, and observability for LLM traffic across your AI services and agent deployments.
The open, universal platform for managing every API and AI service at scale. 100% open source.