OpenTelemetry Collector
Langfuse can act as an OpenTelemetry Collector.
If already have an OpenTelemetry Collector and want to export traces to Langfuse, you can use the following configuration.
Get Started
Get Base64 Encoded API Keys
Langfuse uses Basic Auth. Use the following command to get the base64 encoded API keys (referred to as “AUTH_STRING”):
echo -n "pk-lf-1234567890:sk-lf-1234567890" | base64Add Langfuse Exporter
Add a Langfuse exporter to your OpenTelemetry Collector configuration:
receivers:
otlp:
protocols:
grpc:
endpoint: 0.0.0.0:4317
http:
endpoint: 0.0.0.0:4318
processors:
batch:
memory_limiter:
# 80% of maximum memory up to 2G
limit_mib: 1500
# 25% of limit up to 2G
spike_limit_mib: 512
check_interval: 5s
exporters:
otlp/langfuse:
endpoint: "cloud.langfuse.com/api/public/otel" # EU data region
# endpoint: "us.cloud.langfuse.com/api/public/otel" # US data region
headers:
Authorization: "Basic ${AUTH_STRING}" # Previously encoded API keys
service:
pipelines:
traces:
receivers: [otlp]
processors: [memory_limiter, batch]
exporters: [otlp/langfuse]