Set up EU-Router (EUrouter)

EUrouter is a European, OpenAI-compatible gateway that routes requests to 100+ models with EU data residency. The twist: the EU data location depends on a routing rule you create at the provider and store in CompanyWizard as a body field. Whether EUrouter fits your situation is the job of the provider selection guide; this page only covers the setup.

Step 1 — create a key and routing rule at EUrouter

1. Sign up at EUrouter and create an API key under Dashboard → Keys (format eur_…). The full key is shown only once — copy it immediately.
2. Create a routing rule and give it a name (e.g. EU Compliance). This rule decides which EU providers requests are routed to. Details in the EUrouter documentation.

You will need the rule name in CompanyWizard next — it is the value that makes each request EU-compliant.

Step 2 — store it in CompanyWizard

EUrouter has no dedicated catalog card; you add it as an OpenAI-compatible provider:

1. Administration → Models → + New provider.
2. Set Type to OpenAI (OpenAI-compatible) and enter the EUrouter base URL as the Endpoint: https://api.eurouter.ai/api/v1.
3. Enter the API key from step 1 as the key.

The specialty: routing rule as a body field

Only for OpenAI-compatible providers does the provider editor show the Custom request fields section. That is where you enter the routing rule:

1. Under Body fields, click + Add field.
2. Name: rule_name — Value: the rule name from step 1 (e.g. EU Compliance).

CompanyWizard appends this field to the body of every chat request — exactly what EUrouter expects to route EU-compliantly. Then Test connection and apply the models.

Custom request fields are stored unencrypted

The “Custom request fields” section is meant for non-secret parameters such as rule_name and is stored unencrypted. Do not put secrets there — the API key belongs in the encrypted key field.

For the general mechanics (encryption, one key per vendor) see Where do I get an LLM API key? · provider structure: AI models / providers.

Related

• Which LLM provider should I choose? · Where do I get an LLM API key? · AI models / providers
• EUrouter — documentation