Melious AI GmbH provides a European platform for accessing open-weight artificial intelligence models and developer tools through sovereign infrastructure. Its single API offers access to more than 60 models, including options for text, image, and audio tasks, embeddings, and reranking. Compatible with OpenAI and Anthropic interfaces, the service is designed to let developers switch by changing the API endpoint and key rather than rebuilding their applications.

The platform also includes tools for web search, webpage retrieval, and sandboxed code execution, alongside managed vector storage for embedding-based search and retrieval-augmented generation. Melious Hub brings models, tools, agents, and knowledge bases together for browsing and use. Integrations include popular SDKs, frameworks, coding agents, and IDEs.

Melious says its services run on European infrastructure, with requests encrypted, data kept under European jurisdiction, and customer data excluded from model training. Automatic failover routes traffic across providers to support availability. The company offers documentation, pricing information, API access, demos, and community channels for developers and prospective partners.