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Langfuse Scores API

The Scores API from Langfuse — 2 operation(s) for scores.

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

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

This API exposes 2 operations across 2 paths, and defines 18 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.

2 operations 2 paths 18 schemas 2 GET

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

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Scores 2
GET
/api/public/v2/scores
Get a list of scores (supports both trace and session scores)
scores_get-many 21 params → 200400401403404405
GET
/api/public/v2/scores/{scoreId}
Get a score (supports both trace and session scores)
scores_get-by-id 1 param → 200400401403404405

Schemas 18

The contract defines 18 schemas that model the data the API accepts and returns. The most detailed are BaseScore (16 properties), utilsMetaResponse (4 properties), GetScoresResponseTraceData (4 properties), CorrectionScore (2 properties). Each schema is shown below with its type and property counts.

GetScoresResponse
object
2 properties 2 required
utilsMetaResponse
object
4 properties 4 required
GetScoresResponseData
CategoricalScore
object
2 properties 2 required
GetScoresResponseTraceData
object
4 properties
TextScore
object
1 property 1 required
BaseScore
object
16 properties 8 required
GetScoresResponseDataBoolean
object
1 property
NumericScore
object
1 property 1 required
BooleanScore
object
2 properties 2 required
ScoreSource
string
GetScoresResponseDataCategorical
object
1 property
CorrectionScore
object
2 properties 2 required
ScoreDataType
string
Score
GetScoresResponseDataNumeric
object
1 property
GetScoresResponseDataCorrection
object
1 property
GetScoresResponseDataText
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langfuse-scores-api-openapi.yml Raw ↑

Other APIs Langfuse publishes across the network.

Langfuse AnnotationQueues API
Langfuse BlobStorageIntegrations API
Langfuse Comments API
Langfuse DatasetItems API
Langfuse DatasetRunItems API
Langfuse Datasets API
Langfuse Health API
Langfuse Ingestion API
Langfuse LegacyMetricsV1 API
Langfuse LegacyObservationsV1 API
Langfuse LegacyScoreV1 API
Langfuse LlmConnections API
Where this information came from

This is an independent, third-party profile of Langfuse Scores API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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