> ## Documentation Index > Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-a46887cf.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # ObservabilityDatadogDestinationConfig - Go SDK > ObservabilityDatadogDestinationConfig type definition The Go SDK and docs are currently in beta. Report issues on [GitHub](https://github.com/OpenRouterTeam/go-sdk/issues). ## Fields | Field | Type | Required | Description | | --------- | -------------------- | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `APIKey` | `string` | :heavy\_check\_mark: | Datadog API key must have LLM Observability permissions. Create at: | | `Headers` | map\[string]`string` | :heavy\_minus\_sign: | Custom HTTP headers to include in requests to this destination. | | `MlApp` | `string` | :heavy\_check\_mark: | Name to identify your application in Datadog LLM Observability | | `URL` | `*string` | :heavy\_minus\_sign: | Datadog API URL for your region (e.g., [https://api.datadoghq.com](https://api.datadoghq.com), [https://api.us3.datadoghq.com](https://api.us3.datadoghq.com), [https://api.datadoghq.eu](https://api.datadoghq.eu)) |