Gravitee vs Kong API Gateway Comparison: Which Wins
Quick Comparison
| Gravitee | Kong Gateway | |
|---|---|---|
| Best For | Teams that need to manage both synchronous REST APIs and asynchronous event streams (Kafka, MQTT) through a single gateway. | Large teams needing maximum throughput, lowest latency, and the deepest plugin ecosystem for custom Lua logic. |
| Pricing | Free (OSS self-hosted, Community Edition) / Enterprise: Planet ~$2,500/mo starting | Free OSS / Custom Konnect SaaS (30-day trial, no CC required) |
| Winner | Our Pick |
Tool Breakdown
Kong Gateway
Kong's NGINX core delivers the lowest latency and highest raw throughput of the two, and its plugin ecosystem is the largest in the category — the safer default unless you specifically need native Kafka/MQTT event-protocol support.
- Extreme low latency — roughly 16,000 RPS per node at 3.5ms p99 in independent benchmarks
- Largest plugin ecosystem in the API gateway category
- Solid GitOps workflow via the decK CLI for declarative config management
- Lua plugin learning curve for teams without prior NGINX/OpenResty experience
- Cannot apply policy to Kafka traffic natively — can proxy it but not make it policy-enforced or developer-portal-consumable
- Enterprise (Konnect) costs jump fast once you need advanced governance features
Gravitee
Open-source API management platform (Apache-2.0) built on a reactive Java/Vert.x core, with native support for REST, GraphQL, gRPC, WebSocket, and Kafka/MQTT event protocols plus a built-in developer portal.
- Native, policy-enforced support for Kafka, MQTT, and webhook event protocols — not just proxying
- Community Edition is genuinely free and permanent for self-hosted use, Apache-2.0 licensed
- Built-in developer portal ships without needing a separate product
- Java runtime overhead means higher memory consumption and JVM warm-up time versus Kong's NGINX core
- Enterprise Edition (async protocols beyond basics, Alert Engine, enterprise SSO) starts around $2,500/mo
- No self-serve affiliate or discount program — Partner Program is application-based for resellers only
Frequently Asked Questions
Is Gravitee or Kong faster? +
Kong is faster for standard HTTP/REST traffic — its NGINX/OpenResty core benchmarks around 16,000 requests per second per node at 3.5ms p99 latency. Gravitee's Java/Vert.x core carries more runtime overhead, though its reactive design still handles high concurrency well for mixed sync/async workloads.
Can Kong handle Kafka and MQTT like Gravitee? +
Not natively. Kong, built on NGINX, can technically proxy Kafka traffic but can't apply policies to it or expose it through its developer portal. Gravitee was built from the ground up to treat event protocols (Kafka, MQTT, WebSocket) as first-class citizens alongside REST.
Which is cheaper, Gravitee or Kong? +
Both have genuinely free, permanent open-source editions for self-hosting. On the paid side, Gravitee has publicly reported 20-30% cost savings versus Kong for comparable enterprise API management deployments, though both ultimately require a custom quote at enterprise scale.