Third-Party Integrations

Configure email, analytics, and external services for LangWatch

LangWatch integrates with several third-party services for notifications, storage, and evaluation capabilities.

Email

Email carries alert notifications, scheduled reports, team invitations, usage warnings and password reset links. LangWatch sends through SMTP, AWS SES, SendGrid or Resend.

See Email for choosing a gateway, the settings each one takes, and sending through an outbound proxy.

Usage Analytics

LangWatch collects anonymous usage analytics by default to help improve the product. No trace data or PII is collected.

Disable Telemetry

app:
  telemetry:
    usage:
      enabled: false

Or via environment variable:

Variable	Description
DISABLE_USAGE_STATS	Set to true to disable anonymous usage analytics

LLM Providers for Evaluations

LangWatch evaluators use external LLM providers for model-based evaluations (LLM-as-a-Judge, safety checks, etc.). Configure these if you want to use built-in evaluators.

Azure OpenAI

Configure Azure OpenAI for evaluators in Settings > Model Providers. The Helm chart has no value for it.

Google Cloud DLP

Used for PII redaction of incoming traces.

app:
  evaluators:
    google:
      enabled: true
      credentials:
        secretKeyRef: { name: langwatch-evaluators, key: googleCredentials }

Variable	Description
GOOGLE_APPLICATION_CREDENTIALS	The contents of a Google service account JSON key (the JSON itself, not a file path), with a project_id. Set on the app and workers when app.evaluators.google.enabled is on

You don’t need to configure evaluator providers to use LangWatch. They’re only required if you want to use built-in evaluators that rely on specific LLM providers. You can always configure your own LLM provider API keys in the LangWatch UI for evaluations.

Slack

LangWatch can send notifications to Slack channels via webhooks for alerts and automations. This is configured in the LangWatch UI under Automations, not via environment variables.

S3, Object Storage

Used for dataset storage and ClickHouse cold storage/backups. See:

• Backups for ClickHouse cold storage and backup configuration
• Environment Variables for S3 configuration reference