Any OTLP backend

Marg emits OpenTelemetry in the GenAI semantic conventions (gen_ai.* on model and tool spans, agent_* metrics, logs that carry the trace id). Point OTEL_EXPORTER_OTLP_ENDPOINT at a collector or a vendor's OTLP intake and the headers at its auth; the pages below are that line for each vendor.

OTEL_EXPORTER_OTLP_ENDPOINT=https://collector.example.com
OTEL_EXPORTER_OTLP_HEADERS=authorization=Bearer …   # comma-separated key=value
AGENT_OTEL_CAPTURE_CONTENT=heads   # heads | full | off

Docs: https://opentelemetry.io/docs/languages/js/

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Source: docs/integrations/otlp.md — edit it there; the site mirrors the repository.