Heabsy

Heabsy is a pay-per-token inference API for open-weight language models that speaks both the OpenAI and the Anthropic API formats. Switching an existing app usually means changing the base URL to Heabsy's endpoint, and the Anthropic-compatible endpoint lets coding tools such as Claude Code run against open models instead.

The catalogue is split in two and labelled model by model. A small set of models, led by Qwen3.8 27B, runs on GPUs provisioned in data centres inside the European Economic Area, where prompts and completions are processed in memory only and never logged or used for training. Most of the catalogue is routed: Heabsy buys capacity from global providers through OpenRouter and bills it on one invoice, and those requests may be processed outside the EEA. Billing is per token, with no subscription and no minimum spend.

Key benefits:

• Drop-in OpenAI compatibility for chat completions, streaming, tool calling and structured output
• Anthropic-compatible endpoint for tools built on the Claude API format
• EEA-only processing for the models labelled EEA-only in the catalogue
• Zero data retention on those models, with only token counts and metadata kept for billing
• Clear labels showing which models are processed inside or outside the EEA
• One European invoice and DPA covering every model in the catalogue

Heabsy is a brand of FEYA, s.r.o., a limited liability company registered in Bratislava, Slovakia, under Slovak law. Only the models marked EEA-only stay in Europe: routed models are fulfilled through OpenRouter (US) and their upstream providers, and the privacy policy also lists Cloudflare and optional Google sign-in as global sub-processors under the EU-US Data Privacy Framework or standard contractual clauses.

Ideal for developers who want an OpenAI-style API and can pin sensitive workloads to the EEA-only models.