Daily Metrics API
GET /api/public/metrics/dailyVia the Daily Metrics API, you can retrieve aggregated daily usage and cost metrics from Langfuse for downstream use, e.g., in analytics, billing, and rate-limiting. The API allows you to filter by application type, user, or tags for tailored data retrieval.
See API reference (opens in a new tab) for more details.
Overview
Returned data includes daily timeseries of:
- Cost in USD
- Trace and observation count
- Break down by model name
- Usage (e.g. tokens) broken down by input and output usage
- Cost in USD
- Trace and observation count
Optional filters:
traceNameto commonly filter by the application type, depending on how you usenamein your tracesuserIdto filter by usertagsto filter by tagsfromTimestamptoTimestamp
Missing a key metric or filter? Request it via our idea board.
Example
GET /api/public/metrics/daily?traceName=my-copilot&userId=john&limit=2{
"data": [
{
"date": "2024-02-18",
"countTraces": 1500,
"countObservations": 3000,
"totalCost": 102.19,
"usage": [
{
"model": "llama2",
"inputUsage": 1200,
"outputUsage": 1300,
"totalUsage": 2500,
"countTraces": 1000,
"countObservations": 2000,
"totalCost": 50.19
},
{
"model": "gpt-4",
"inputUsage": 500,
"outputUsage": 550,
"totalUsage": 1050,
"countTraces": 500,
"countObservations": 1000,
"totalCost": 52.0
}
]
},
{
"date": "2024-02-17",
"countTraces": 1250,
"countObservations": 2500,
"totalCost": 250.0,
"usage": [
{
"model": "llama2",
"inputUsage": 1000,
"outputUsage": 1100,
"totalUsage": 2100,
"countTraces": 1250,
"countObservations": 2500,
"totalCost": 250.0
}
]
}
],
"meta": {
"page": 1,
"limit": 2,
"totalItems": 60,
"totalPages": 30
}
}