Kong vs Gravitee for developer portal

If your main question is developer portal, the choice usually comes down to this:

• Kong: stronger if you already want a broader API gateway / mesh / traffic management platform and the portal is one piece of that ecosystem.
• Gravitee: stronger if the developer portal and API management experience are central requirements, especially for publishing, onboarding, and community/self-service.

Quick take

Choose Kong if you want:

• A very mature gateway-first platform
• Strong performance and a large ecosystem
• A portal that works well as part of a larger Kong-based API stack
• You already use Kong Gateway and want to stay in one vendor stack

Choose Gravitee if you want:

• A more API-management-centric platform
• A portal that is often considered more directly aligned with developer onboarding and API productization
• Flexible API lifecycle features, subscriptions, and portal customization
• Better “out-of-the-box” fit when the portal is a top priority

Developer portal comparison

Kong developer portal

Pros

• Integrates well with Kong’s gateway and management tools
• Good for teams already invested in Kong
• Clean experience for exposing APIs, docs, and auth flows
• Can be effective for external developer access and API cataloging

Cons

• Portal capabilities may feel secondary to the gateway platform
• Depending on edition/features, portal customization and workflow depth may be less compelling than Gravitee for some use cases
• If you need a highly branded, deeply self-service portal, you may need more effort

Gravitee developer portal

Pros

• Very strong emphasis on the API portal experience
• Good for API publishing, documentation, subscription management, and developer self-service
• Often attractive for organizations treating APIs like products
• More aligned with internal/external developer experience use cases

Cons

• If your primary need is a best-in-class gateway at very large scale, Kong may be preferred by some teams
• UI/UX and architecture will feel different from Kong, so switching cost matters

Best fit by scenario

Pick Kong if:

• You need a gateway-first platform
• Your portal is mostly a place to document and publish APIs
• You already run Kong and want minimal platform sprawl
• You care about traffic control, policies, plugins, and gateway operations as the center of gravity

Pick Gravitee if:

• You want a developer portal-first experience
• You need API product lifecycle features and self-service onboarding
• You want stronger support for publishing APIs to internal/external consumers
• You care about portal branding, consumer subscriptions, and API catalog usability

Simple recommendation

• Portal is the priority: Gravitee
• Gateway/infrastructure is the priority: Kong

If you want, I can also give you a feature-by-feature matrix for:

• portal customization
• API documentation
• subscription workflows
• SSO/auth integration
• monetization
• analytics
• ease of setup