Sovereign and European AI where your Data Stays under European law
Melious offers a European AI platform with a single API for open-weight models like GPT-OSS-120B and GLM-5.1, running entirely on EU infrastructure. It emphasizes sovereignty, privacy, and sustainability, with no training on user data and full GDPR compliance.
European AI, made accessible.
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GDPR | ISO 27001 in progress | Green hosting | --.-% uptime
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Full stack, full sovereignty
from openai import OpenAI
client = OpenAI( base_url="https://api.melious.ai/v1", api_key="sk-mel-...", )
response = client.chat.completions.create( model="gpt-oss-120b", messages=[{ "role": "user", "content": "Hello!" }], )
Base URL https://api.melious.ai/v1
from openai import OpenAI
client = OpenAI( base_url="https://api.melious.ai/v1", api_key="sk-mel-...", )
response = client.chat.completions.create( model="gpt-oss-120b", messages=[{ "role": "user", "content": "Hello!" }], )
The Melious Hub
Models, tools, agents and knowledge bases: all in one place. Browse, find and use what you need.
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GPT OSS 120B
Code Execution
GLM 5.1
Mistral Small 4
Kimi K2.6
Gemma 4
Qwen 3.6
11 Providers
8 Countries
100% European
Independently checked by staysin.eu
Web App staysin.eu API staysin.eu
OpenCode Coding agent
Cursor IDE
Vercel AI SDK SDK
Claude Code Coding agent
Continue.dev IDE
LangChain Framework
Mistral Vibe Coding agent
OpenClaw Automation
OpenAI SDK SDK
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A European platform that gives you one API for the latest open-weight AI models and tools for your AI applications, all running on a network of European infrastructure providers. You get one endpoint, one bill, one set of values — sovereignty, privacy, transparency, sustainability — across the whole stack.
No. If you're using the OpenAI or Anthropic SDK, point the base URL at api.melious.ai, drop in your Melious API key, and you're done. Same interface, European infrastructure underneath.
No. Never. Your requests are end-to-end encrypted, stay on European infrastructure, and don't touch any training run — ours or anyone else's. We run inference, not a data collection scheme.
Your data stays under European jurisdiction. Our infrastructure partners are based across the EU or European Economic Area. No US legal exposure, no foreign government access, no fine print that quietly says otherwise.
You can use the latest open-weight models across many different categories such as text generation, image generation, audio transcription, embeddings or reranking. Browse the full list in the Hub and switch seamlessly between models by changing one string.
Requests are routed across multiple European providers with automatic failover. If one goes offline, your traffic moves to another for high availability without you having to do anything.