v2.15.0 released, September 24, 2026 See what's new

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.

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OpenAPI 3.x Swagger 2.0 GraphQL AsyncAPI 3.0 DDLAPI MCP Contracts JSON Schema Protobuf / gRPC Markdown Docs
APIHUB — unified API management hub
1
Repository, All Components
v2.15.0
Latest Release
Contracts
API Types + DDLAPI + MCP
MCP
Server + Catalog Contracts

What you get

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.

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Automated 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.

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Quality & Governance at Scale

Enforce standards with Spectral linting, AI-powered recommendations, and configurable rulesets. Inline highlighting and multi-linter results in one dashboard.

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Why APIHUB?

Your business runs on APIs.
Who is keeping them in order?

What ungoverned APIs cost you in incidents, delivery speed, and documentation overhead — explained for decision makers, not only engineers. Plus an honest map of where APIHUB fits next to Kong, Apigee, SwaggerHub, Backstage, and friends.

Business caseWithout / withPositioning mapComparison by category
Read the business case and comparison
Positioning map: Qubership APIHUB is deep on contract governance and deliberately narrow on runtime

Technology radar

What we run.
How we build it.

A ThoughtWorks-style radar of the APIHUB stack: Go and TypeScript runtimes, OpenAPI through MCP, Kubernetes and Helm, plus the CI, E2E, and agent-native practices the team uses. Adopt, Trial, Assess, and Hold — product and engineering in one map.

TechniquesToolsPlatformsLanguages
Open the interactive radar
Technology radar: four quadrants, Adopt in the center, Hold on the rim

Explore the full platform

Each section covers a different dimension of what APIHUB offers.

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Use Cases

See how API developers, DevOps, governance leads, data architects, and AI teams use APIHUB in real workflows.
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Features

Interactive showcase of discovery, breaking change detection, quality gates, K8s discovery, and more.
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All Capabilities

Complete feature matrix — API types, contract types (DDL & MCP), security, AI, export, and more.
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Technology Radar

What we run and how we build it: Adopt, Trial, Assess, Hold across product runtime and engineering practice.
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Releases

Actively developed with releases every 4–6 weeks. See the full changelog from v2.5.x to the latest release.
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Deploy

Docker Compose, Helm chart, or build from source. Architecture overview included.
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Architecture

The C4 model from context down to code, the three runtime flows, and 60 sub-capabilities mapped onto the services that implement them.

Start governing your APIs today

Open source, self-hosted, Apache 2.0. Deploy in minutes.

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