The Open Source
API Hub for
Modern Engineering
A single point of truth for versioned API and non-API contracts. Discover, compare, validate, and govern OpenAPI, GraphQL, AsyncAPI, DDLAPI, and MCP in one catalog.
Why Qubership APIHUB?
The only unified platform
for all your API needs
Get complete API context unified across discovery, governance, and quality — built for teams that care about API reliability at scale.
Unified Contract Catalog
Version REST, GraphQL, AsyncAPI, database schemas (DDLAPI), and MCP tool surfaces in one hierarchy — workspaces, groups, packages, and releases. One place for every machine-readable contract.
Learn moreAutomated Compatibility Checks
Know exactly what breaks before it reaches production. The diff engine classifies changes as Breaking, Semi-Breaking, Deprecated, or Non-Breaking — for REST, GraphQL, AsyncAPI, and DDLAPI.
Learn moreQuality & Governance at Scale
Enforce standards with Spectral linting, AI-powered recommendations, and configurable rulesets. Inline highlighting and multi-linter results in one dashboard.
Learn moreExplore the full platform
Each section covers a different dimension of what APIHUB offers.
Use Cases
See how API developers, DevOps, governance leads, and AI teams use APIHUB in real workflows.
Features
Interactive showcase of discovery, breaking change detection, quality gates, K8s discovery, and more.
All Capabilities
Complete feature matrix — API types, contract types (DDL & MCP), security, AI, export, and more.
Releases
Actively developed with releases every 4–6 weeks. See the full changelog from v2.5.x to v2.12.0.
Deploy
Docker Compose, Helm chart, or build from source. Architecture overview included.
Start governing your APIs today
Open source, self-hosted, Apache 2.0. Deploy in minutes.