Open Hippo for developers
Open Hippo serves AI models through an OpenAI- and Anthropic-compatible API. Our own models run on our own hardware in the LEW Green Data Center in Augsburg, Germany; further models come from partners in the EU.
Three ways to Open Hippo
APIPrepaid balance, one API key, the OpenAI or Anthropic SDK. For your own applications and coding agents.Quickstart →Hippo ChatA private AI chat for your organisation, no development needed.Overview →Hippo ServerHippo Chat, the API and open-weight models on your own server.Overview →
These docs mainly cover the API. Hippo Chat and Hippo Server share one overview page here, with links to the product pages.
Where your data is processed
| Model group | Location | Suitable for § 203 StGB |
|---|---|---|
Self-hosted (openhippo/…) | Our own hardware in the LEW Green Data Center, Augsburg | Yes |
Partner (aki-io/…, mistral/…, telekom/…, tensorx/…) | At the respective partner in the EU; location per model in the model list | No |
With our self-hosted models, customer data is not used for training; with partner models, the partner's terms apply. Details: Data, security, compliance.
The essentials
- Base URL:
https://api.openhippo.io/v1 - Authentication:
Authorization: Bearer <your API key>; keys start withhk_live_. - Compatible with OpenAI Chat Completions (
/v1/chat/completions) and Anthropic Messages (/v1/messages). - Billing: prepaid balance in euros, prices per 1M tokens. See Prepaid & pricing.
Next steps
- Quickstart: create a key and send the first request.
- Migrating from OpenAI/Anthropic: switch existing code.
- Models: which model for what.