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Required

Set this in the backend app that calls your model provider: 
MARGOVIA_API_KEY=mg_live_xxx
The API key authenticates events sent to Margovia. Keep it on the backend. Do not expose it in browser code. If MARGOVIA_API_KEY is missing, the SDK skips Margovia tracking. Installing the SDK alone sends nothing. When MARGOVIA_API_KEY is configured, the SDK sends events to Margovia Cloud at https://api.margovia.com unless MARGOVIA_BASE_URL overrides it.

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Optional

MARGOVIA_BASE_URL=https://your-api.example.com
Set MARGOVIA_BASE_URL only if you self-host Margovia, run a compatible receiver, or test against a local API: 
MARGOVIA_BASE_URL=http://localhost:4010

MARGOVIA_DEBUG=1
Enables debug logging for skipped or failed tracking operations. Use this when you are verifying an integration. Leave it off in normal production logs unless you are troubleshooting.

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Provider keys

Provider API keys are not used by Margovia directly. They are used by your app and provider SDKs: 
OPENAI_API_KEY=sk_xxx
ANTHROPIC_API_KEY=sk-ant-xxx