Fusio vs Kong Gateway
Fusio
fusio-project.org
Kong Gateway
konghq.comSide by side
| Figure | Fusio | Kong Gateway |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 7 |
| Spec score · Rest Apis | 8.0 (#8) | 7.8 (#10) |
| Headquarters | Heiligenhaus, Germany | San Francisco, California, USA |
| Purpose | Fusio is an open-source API management platform for connecting business logic and infrastructure to APIs. | Kong Gateway is an open-source API gateway built for hybrid and multi-cloud environments and optimized for microservices and distributed architectures. |
| Security controls | The platform documentation describes authentication, granular rate limiting, and request validation as built-in API management capabilities. | Kong's product page lists security and authentication plugins, while its pricing page lists RBAC and identifies SSO and audit logs as Enterprise features. |
| Support | The project offers real-time Discord support and architectural discussions, plus an issue tracker for bugs and feature requests. | Konnect Plus includes email support with a two-business-day SLA; Enterprise lists dedicated customer success and technical account managers and higher SLAs. |
Plans
Kong Gateway
- Free trialFree
- PlusPriced on request
- EnterprisePriced on request
- Kong Gateway Open SourceFree
- Konnect Free trialFree
- Konnect EnterprisePriced on request
- Konnect PlusPrice not published
In their own words
Fusio
Fusio is an open-source API management platform for connecting business logic and infrastructure to APIs. It is self-hosted and brings databases, microservices, and custom scripts behind a unified gateway that handles routing, authentication, and request validation. TypeSchema models add validation and generate OpenAPI specifications and client SDKs in multiple languages. A developer portal provides documentation, testing tools, and API keys; API monetization features can manage plans, quotas, subscriptions, and billing. AI-assisted development and AI/MCP integration are described as optional. Official adapters cover services and technologies such as AWS, Google Cloud, GraphQL, LDAP, MongoDB, Redis, SQL, Stripe, and SOAP. Worker runtimes are available for PHP, JavaScript, and Python, with SDKs listed for C#, Go, Java, JavaScript, PHP, and Python. Fusio also documents lifecycle management, access policies, and API analytics. Install options include a release archive, Composer, or Docker. The code is licensed under Apache 2.0. Fusio is available for free.
Kong Gateway
Kong Gateway has no write-up on Specifiction yet; its figures are above.