LangChain datasets API is one of 66 APIs that LangChain 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 authentication docs.
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
LangChain 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.
SimpleExperimentInfo
object
Simple experiment info schema for use with comparative experiments
2 properties2 required
Dataset
object
Dataset schema.
16 properties5 required
SessionFeedbackDelta
object
List of feedback keys with number of improvements and regressions for each.
1 property1 required
AutoEvalFeedbackSource
object
Auto eval feedback source.
2 properties
ValidationError
object
3 properties3 required
TracerSession
object
TracerSession schema.
29 properties2 required
FeedbackCreateCoreSchema
object
Schema used for creating feedback without run id or session id.
13 properties1 required
DataType
string
Enum for dataset data types.
StudioRunOverDatasetRequestSchema
object
4 properties2 required
TraceTier
string
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
RunSchemaComparisonView
object
Run schema for comparison view.
37 properties6 required
DatasetUpdate
object
Update class for Dataset.
8 properties
DatasetTransformation
object
2 properties2 required
FeedbackCategory
object
Specific value and label pair for feedback
2 properties1 required
SortParamsForRunsComparisonView
object
2 properties1 required
ComparativeExperiment
object
ComparativeExperiment schema.
10 properties6 required
FeedbackSchema
object
Schema for getting feedback.
18 properties2 required
HTTPValidationError
object
1 property
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
FeedbackDelta
object
Feedback key with number of improvements and regressions.
2 properties2 required
PutDatasetVersionsSchema
object
2 properties2 required
QueryGroupedExamplesWithRuns
object
8 properties3 required
ModelFeedbackSource
object
Model feedback source.
2 properties
DatasetCreate
object
Create class for Dataset.
10 properties1 required
DatasetVersion
object
Dataset version schema.
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…
AppFeedbackSource
object
Feedback from the LangChainPlus App.
2 properties
PlaygroundRunOverDatasetRequestSchema
object
20 properties5 required
DatasetShareSchema
object
2 properties2 required
GenerateSyntheticExamplesBody
object
2 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
ExperimentResultsUploadResult
object
Class for uploading the results of an already-run experiment.
2 properties2 required
ExperimentResultsUpload
object
Class for uploading the results of an already-run experiment.
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
QueryFeedbackDeltaBatch
object
Request schema for batched feedback delta queries with multiple feedback keys.
4 properties3 required
GetDatasetsSelect
string
RunTypeEnum
string
Enum for run types.
ComparativeExperimentCreate
object
Create class for ComparativeExperiment.
8 properties1 required
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…
8 properties
AttachmentsOperations
object
2 properties
ComparativeExperimentBase
object
ComparativeExperiment schema.
8 properties5 required
DatasetDiffInfo
object
Dataset diff schema.
3 properties3 required
GroupExampleRunsByField
string
DatasetSchemaForUpdate
object
10 properties3 required
RunnerContextEnum
string
FeedbackType
string
Enum for feedback types.
APIFeedbackSource
object
API feedback source.
2 properties
Body_clone_dataset_api_v1_datasets_clone_post
object
5 properties2 required
Missing
object
1 property1 required
FeedbackSource
object
The feedback source loaded from the database.
5 properties
SortByComparativeExperimentColumn
string
Enum for available comparative experiment columns to sort by.
ExampleUpdate
object
Update class for Example.
7 properties
GroupedExperimentsRequest
object
Schema for grouped experiment (tracer session) query.
8 properties1 required
FeedbackConfig
object
4 properties1 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
Specification
The full machine-readable OpenAPI contract behind this narrative.
Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.
Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.
MCP tools for apis
4 tools reach this content
search_api_evangelistSearch every content type across the network at once.
find_relatedThe shared-tag relevance graph — what else covers this.
get_tagEverything one tag labels, across all content types.
guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
A second provider on the same verified email joins the account you already have.
Your account
ⓘWhere this information came from
This is an independent, third-party profile of LangChain datasets 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.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's
public API artifacts, scored against a published rubric. They are not certifications,
endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and
you do not need to justify the request. A removed company is recorded as unrated, never scored
zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy → On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.