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Langfuse

Langfuse Ingestion API

The Ingestion API from Langfuse — 1 operation(s) for ingestion.

Documentation Provider Profile APIs.io OpenAPI GitHub

Langfuse Ingestion API is one of 28 APIs that Langfuse publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Ingestion. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 1 operation across 1 path, and defines 37 schemas. It is described by OpenAPI 3.0.1, at version 1.0.

Requests are made against the base URL https://cloud.langfuse.com/api/public.

1 operations 1 paths 37 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.1
API Version
1.0
Base URL
https://cloud.langfuse.com/api/public
Authentication
HTTP Basic
Resource Areas
1

Authentication & Security 1

Langfuse Ingestion API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth).

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Ingestion 1
POST
/api/public/ingestion
Legacy endpoint for batch ingestion for Langfuse Observability. - Please use the OpenTelemetry endpoint (/api/public/otel/v1/traces). Learn more: https://langfuse.com/integrations/native/opentelemetr…
ingestion_batch body → 207400401403404405

Schemas 37

The contract defines 37 schemas that model the data the API accepts and returns. The most detailed are ObservationBody (18 properties), ScoreBody (13 properties), TraceBody (13 properties), OptionalObservationBody (11 properties). Each schema is shown below with its type and property counts.

IngestionResponse
object
2 properties 2 required
BaseEvent
object
3 properties 2 required
CreateSpanEvent
object
1 property 1 required
TraceBody
object
13 properties
CreateEventBody
object
1 property
CreateObservationEvent
object
1 property 1 required
CreateEventEvent
object
1 property 1 required
ScoreDataType
string
UpdateObservationEvent
object
1 property 1 required
CreateGenerationBody
object
8 properties
ScoreEvent
object
1 property 1 required
UpdateSpanEvent
object
1 property 1 required
ObservationType
string
ScoreBody
object
13 properties 2 required
IngestionSuccess
object
2 properties 2 required
IngestionError
object
4 properties 2 required
SDKLogEvent
object
1 property 1 required
MapValue
CreateGenerationEvent
object
1 property 1 required
ObservationLevel
string
UpdateGenerationBody
object
8 properties
UsageDetails
Usage
object
(Deprecated. Use usageDetails and costDetails instead.) Standard interface for usage and cost
7 properties 3 required
IngestionUsage
SDKLogBody
object
1 property 1 required
UpdateEventBody
object
1 property 1 required
OpenAICompletionUsageSchema
object
OpenAI Usage schema from (Chat-)Completion APIs
5 properties 3 required
CreateScoreValue
The value of the score. Must be passed as string for categorical and text scores, and numeric for boolean and numeric scores
ObservationBody
object
18 properties 1 required
UpdateGenerationEvent
object
1 property 1 required
OpenAIResponseUsageSchema
object
OpenAI Usage schema from Response API
5 properties 3 required
UpdateSpanBody
object
1 property
OpenAIUsage
object
Usage interface of OpenAI for improved compatibility.
3 properties
OptionalObservationBody
object
11 properties
CreateSpanBody
object
1 property
IngestionEvent
TraceEvent
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langfuse-ingestion-api-openapi.yml Raw ↑

Other APIs Langfuse publishes across the network.

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Langfuse DatasetItems API
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Langfuse DatasetRunItems API
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Langfuse Datasets API
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Langfuse Health API
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Langfuse LegacyMetricsV1 API
AE Profile APIs.io
Langfuse LegacyObservationsV1 API
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Langfuse LegacyScoreV1 API
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Langfuse LlmConnections API
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Langfuse Media API
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#Ingestion
← Back to L APIs
API Details
ID
langfuse:langfuse-ingestion-api
Base URL
https://cloud.langfuse.com/api/public
Docs
https://langfuse.com/docs/tracing
Provider
Langfuse
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