Emissary vs Kong Gateway
No clear leader: Emissary (50.2) and Kong Gateway (49.4) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for api gateways. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Emissary
An open-source, CNCF incubation project providing a Kubernetes-native API gateway with Layer 7 load balancing and ingress capabilities for microservices, built on Envoy Proxy.
Kong Gateway
Kong provides a unified platform for building, testing, and governing APIs and AI agents. It handles both traditional API gateway functions—routing, rate limiting, authentication—and modern AI-specific concerns like token budgeting, context management, and LLM traffic control. Includes gateway, API management, testing tools, and event streaming capabilities.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Emissary
- Consul
- Linkerd
- Istio
- Knative
- Grafana
- Prometheus
- Datadog
Kong Gateway
- AWS Bedrock
- Azure Content Safety
- Google Cloud Model Armor
- OpenAI
- Anthropic
- Llama 3
- Kubernetes
- Helm
- Git
- Stripe
- Twilio
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.