LangSmith datasets API is one of 73 APIs that LangSmith publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Datasets. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes
35 operations
across 28 paths,
and defines 62 schemas.
It is described by OpenAPI 3.1.0, at version 0.1.0.
Requests are made against a single base URL, /.
35 operations28 paths62 schemas4 DELETE13 GET1 PATCH14 POST3 PUT
Metadata
The identity and technical contract details declared by the specification.
Specification
OpenAPI 3.1.0
API Version
0.1.0
Base URL
https://api.smith.langchain.com
Authentication
API Key, API Key, HTTP Bearer, API Key
Resource Areas
1
Authentication & Security 4
LangSmith datasets API declares
4 security schemes
for authenticating requests.
An API key is passed in the header as X-API-Key (API Key).
An API key is passed in the header as X-Tenant-Id (Tenant ID).
It accepts HTTP bearer tokens (Bearer Auth).
An API key is passed in the header as X-Organization-Id (Organization ID).
Bearer Auth — Bearer tokens are used to authenticate from the UI. Must also specify x-tenant-id or x-organization-id (for org scoped apis).
Paths & Operations 35
Across 28 paths, the API surfaces 35 operations — 4 DELETE, 13 GET, 1 PATCH, 14 POST, 3 PUT. Each is listed below with its method, path, parameters, and response codes.
The contract defines 62 schemas that model the data the API accepts and returns. The most detailed are RunSchemaComparisonView (37 properties), GroupedRunsSessionStats (33 properties), TracerSession (29 properties), PlaygroundRunOverDatasetBatchRequestSchema (21 properties). Each schema is shown below with its type and property counts.
SessionFeedbackDelta
object
List of feedback keys with number of improvements and regressions for each.
Simple experiment info schema for use with comparative experiments
2 properties2 required
RunSchemaComparisonView
object
Run schema for comparison view.
37 properties6 required
ExperimentResultsUploadResult
object
Class for uploading the results of an already-run experiment.
2 properties2 required
ComparativeExperiment
object
ComparativeExperiment schema.
10 properties6 required
ComparativeExperimentBase
object
ComparativeExperiment schema.
8 properties5 required
RunnerContextEnum
string
PlaygroundRunOverDatasetRequestSchema
object
20 properties5 required
AutoEvalFeedbackSource
object
Auto eval feedback source.
2 properties
FeedbackSource
object
The feedback source loaded from the database.
5 properties
GroupedExamplesWithRunsResponse
object
Response for grouped comparison view of dataset examples. Returns dataset examples grouped by a run metadata value (e.g., model='gpt-4'). Optional filters are…
1 property1 required
ExperimentResultsUpload
object
Class for uploading the results of an already-run experiment.
10 properties4 required
Missing
object
1 property1 required
GroupedExperimentsRequest
object
Schema for grouped experiment (tracer session) query.
8 properties1 required
QueryFeedbackDelta
object
7 properties3 required
SortByDatasetColumn
string
Enum for available dataset columns to sort by.
FeedbackCreateCoreSchema
object
Schema used for creating feedback without run id or session id.
13 properties1 required
Dataset
object
Dataset schema.
16 properties5 required
QueryFeedbackDeltaBatch
object
Request schema for batched feedback delta queries with multiple feedback keys.
4 properties3 required
FeedbackCategory
object
Specific value and label pair for feedback
2 properties1 required
AppFeedbackSource
object
Feedback from the LangChainPlus App.
2 properties
ExampleGroupWithSessions
object
Group of examples with a specific metadata value across multiple sessions. Extends RunGroupBase with: - groupkey: metadata value that defines this group - sess…
18 properties5 required
TracerSession
object
TracerSession schema.
29 properties2 required
DatasetDiffInfo
object
Dataset diff schema.
3 properties3 required
FeedbackType
string
Enum for feedback types.
QueryGroupedExamplesWithRuns
object
8 properties3 required
StudioRunOverDatasetRequestSchema
object
4 properties2 required
GroupExampleRunsByField
string
FeedbackDelta
object
Feedback key with number of improvements and regressions.
2 properties2 required
ExampleWithRunsCH
object
Example schema with list of runs from ClickHouse. For non-grouped endpoint (/datasets/{datasetid}/runs): runs from single session. For grouped endpoint (/datas…
11 properties5 required
DatasetUpdate
object
Update class for Dataset.
8 properties
HTTPValidationError
object
1 property
TraceTier
string
QueryExampleSchemaWithRunsRequest
object
Request DTO for querying examples with runs - used for API input. This is separate from the internal schema to cleanly handle optional limit values. When limit…
9 properties1 required
GroupedRunsSessionStats
object
TracerSession stats filtered to runs matching a specific metadata value. Extends TracerSession with: - examplecount: unique examples (vs runcount = total runs…
33 properties3 required
SortByComparativeExperimentColumn
string
Enum for available comparative experiment columns to sort by.
DatasetVersion
object
Dataset version schema.
2 properties1 required
PlaygroundRunOverDatasetBatchRequestSchema
object
21 properties5 required
DatasetShareSchema
object
2 properties2 required
DatasetTransformation
object
2 properties2 required
ExperimentResultRow
object
Class for a single row in the uploaded experiment results.
10 properties3 required
Body_clone_dataset_api_v1_datasets_clone_post
object
5 properties2 required
SortParamsForRunsComparisonView
object
2 properties1 required
DatasetTransformationType
string
Enum for dataset transformation types. Ordering determines the order in which transformations are applied if there are multiple transformations on the same pat…
DatasetSchemaForUpdate
object
10 properties3 required
DatasetCreate
object
Create class for Dataset.
10 properties1 required
APIFeedbackSource
object
API feedback source.
2 properties
RunnableConfig
object
Configuration for a Runnable. !!! note Custom values The TypedDict has total=False set intentionally to: - Allow partial configs to be created and merged toget…
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