3.2 KiB
Azure OpenAI Configuration
Azure OpenAI support lets Zen MCP talk to GPT-4o, GPT-4.1, GPT-5, and o-series deployments that you expose through your Azure resource. This guide describes the configuration expected by the server: a couple of required environment variables plus a JSON manifest that lists every deployment you want to expose.
1. Required Environment Variables
Set these entries in your .env (or MCP env block).
AZURE_OPENAI_API_KEY=your_azure_openai_key_here
AZURE_OPENAI_ENDPOINT=https://your-resource.openai.azure.com/
# AZURE_OPENAI_API_VERSION=2024-02-15-preview
Without the key and endpoint the provider is skipped entirely. Leave the key blank only if the endpoint truly allows anonymous access (rare for Azure).
2. Define Deployments in conf/azure_models.json
Azure models live in conf/azure_models.json (or the file pointed to by AZURE_MODELS_CONFIG_PATH). Each entry follows the same schema as ModelCapabilities with one additional required key: deployment. This field must exactly match the deployment name shown in the Azure Portal (for example prod-gpt4o). The provider routes requests by that value, so omitting it or using the wrong name will cause the server to skip the model. You can also opt into extra behaviour per model—for example set use_openai_response_api to true when an Azure deployment requires the /responses endpoint (O-series reasoning models), or leave it unset for standard chat completions.
{
"models": [
{
"model_name": "gpt-4o",
"deployment": "prod-gpt4o",
"friendly_name": "Azure GPT-4o EU",
"intelligence_score": 18,
"context_window": 600000,
"max_output_tokens": 128000,
"supports_temperature": false,
"temperature_constraint": "fixed",
"aliases": ["gpt4o-eu"],
"use_openai_response_api": false
}
]
}
Tips:
- Copy
conf/azure_models.jsoninto your repo and commit it, or pointAZURE_MODELS_CONFIG_PATHat a custom path. - Add one object per deployment. Aliases are optional but help when you want short names like
gpt4o-eu. - All capability fields are optional except
model_name,deployment, andfriendly_name. Anything you omit falls back to conservative defaults. - Set
use_openai_response_apitotruefor models that must call Azure's/responsesendpoint (for example O3 deployments). Leave it unset for standard chat completions.
3. Optional Restrictions
Use AZURE_OPENAI_ALLOWED_MODELS to limit which Azure models Claude can access:
AZURE_OPENAI_ALLOWED_MODELS=gpt-4o,gpt-4o-mini
Aliases are matched case-insensitively.
4. Quick Checklist
AZURE_OPENAI_API_KEYandAZURE_OPENAI_ENDPOINTare setconf/azure_models.json(or the file referenced byAZURE_MODELS_CONFIG_PATH) lists every deployment with the desired metadata- Optional:
AZURE_OPENAI_ALLOWED_MODELSto restrict usage - Restart
./run-server.shand runlistmodelsto confirm the Azure entries appear with the expected metadata
See also: docs/adding_providers.md for the full provider architecture and README (Provider Configuration) for quick-start environment snippets.