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Meliai is a European sovereign AI inference API that routes your requests across 11+ providers in 8 EU countries — giving you a single, drop-in-compatible endpoint for 60+ open-weight models, without your data ever leaving the EU. Whether you’re migrating from OpenAI, Anthropic, or building from scratch, Meliai fits into your existing stack with a one-line base_url change, and hands you per-response carbon, water, and energy telemetry alongside every completion.

Quickstart

Make your first API call in under five minutes using the OpenAI SDK.

API Reference

Explore every endpoint, parameter, and response shape in detail.

Routing

Learn how flavors like :speed, :eco, and :price shape model selection.

Models

Browse the full catalog of 60+ open-weight models available on Meliai.

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What makes Meliai different

Most inference APIs treat sovereignty, sustainability, and compatibility as trade-offs. Meliai treats them as defaults.

European-only infrastructure

Every request is routed exclusively to data centres inside the European Union. Meliai is GDPR-compliant by design: your prompts and completions never leave EU jurisdiction, and your data is never used for model training.

Per-response environmental impact

Every API response includes an environment_impact block reporting exact energy consumption (kWh), carbon emissions (g CO₂), water usage (litres), renewable energy percentage, and the PUE of the serving facility — so you can track and report your AI footprint at the request level.

Drop-in OpenAI and Anthropic compatibility

Meliai speaks OpenAI’s /v1/chat/completions and /v1/responses shapes, as well as Anthropic’s /v1/messages shape. Swap base_url and your API key — the rest of your code stays exactly as it is, including streaming, tool calling, vision, and structured output.

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Migrate in three lines

If you’re already using the OpenAI Python SDK, pointing it at Meliai takes three lines:
That’s it. Everything else — streaming, function calling, vision, JSON mode — works through the same familiar interface.

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Where to go next

Concepts

Understand routing flavors, model selection, and auto-failover.

Guides

Step-by-step walkthroughs for streaming, embeddings, batching, and more.

Integrations

Connect Meliai to LangChain, LlamaIndex, Vercel AI SDK, and other tools.

API Reference

Full reference for every endpoint, request field, and response field.