LangSmith public API is one of 73 APIs that LangSmith publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Public. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes
20 operations
across 20 paths,
and defines 45 schemas.
It is described by OpenAPI 3.1.0, at version 0.1.0.
Requests are made against a single base URL, /.
20 operations20 paths45 schemas13 GET7 POST
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 public 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 20
Across 20 paths, the API surfaces 20 operations — 13 GET, 7 POST. Each is listed below with its method, path, parameters, and response codes.
The contract defines 45 schemas that model the data the API accepts and returns. The most detailed are RunPublicDatasetSchema (45 properties), RunPublicSchema (44 properties), RunSchemaComparisonView (37 properties), TracerSession (29 properties). Each schema is shown below with its type and property counts.
SourceType
string
Enum for feedback source types.
SessionFeedbackDelta
object
List of feedback keys with number of improvements and regressions for each.
1 property1 required
RunTypeEnum
string
Enum for run types.
Example
object
Example schema.
10 properties4 required
RunsGenerateQueryFeedbackKeys
string
ExampleSelect
string
DataType
string
Enum for dataset data types.
ValidationError
object
3 properties3 required
SimpleExperimentInfo
object
Simple experiment info schema for use with comparative experiments
2 properties2 required
RunSchemaComparisonView
object
Run schema for comparison view.
37 properties6 required
SessionSortableColumns
string
FeedbackDelta
object
Feedback key with number of improvements and regressions.
2 properties2 required
FeedbackSource
object
The feedback source loaded from the database.
5 properties
RequestBodyForRunsGenerateQuery
object
2 properties1 required
RunsFilterDataSourceTypeEnum
string
Enum for run data source types.
QueryFeedbackDelta
object
7 properties3 required
SortByDatasetColumn
string
Enum for available dataset columns to sort by.
RunPublicDatasetSchema
object
Schema for a run in a publicly-shared dataset.
45 properties7 required
RunSelect
string
Enum for available run columns.
ResponseBodyForRunsGenerateQuery
object
2 properties2 required
QueryFeedbackDeltaBatch
object
Request schema for batched feedback delta queries with multiple feedback keys.
4 properties3 required
PublicComparativeExperiment
object
Publicly-shared ComparativeExperiment schema.
8 properties4 required
RunDateOrder
string
Enum for run start date order.
TracerSession
object
TracerSession schema.
29 properties2 required
BodyParamsForRunSchema
object
Query params for run endpoints.
24 properties
RunStatsGroupBy
object
Group by param for run stats.
3 properties1 required
FeedbackLevel
string
Enum for feedback levels.
ListPublicDatasetRunsResponse
object
3 properties2 required
RunPublicSchema
object
44 properties6 required
RunStatsQueryParams
object
Query params for run stats.
22 properties
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
HTTPValidationError
object
1 property
TraceTier
string
PublicExampleWithRuns
object
Schema for an example in a publicly-shared dataset with list of runs.
11 properties5 required
SortByComparativeExperimentColumn
string
Enum for available comparative experiment columns to sort by.
RunStats
object
28 properties
QueryExampleSchemaWithRuns
object
9 properties1 required
DatasetPublicSchema
object
Public schema for datasets. Doesn't currently include session counts/stats since public test project sharing is not yet shipped
10 properties3 required
DatasetTransformation
object
2 properties2 required
QueryParamsForPublicRunSchema
object
Query params for public run endpoints.
1 property
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…
RunStatsSelect
string
Metrics you can select from run stats endpoint.
ListPublicRunsResponse
object
3 properties2 required
FeedbackSchema
object
Schema for getting feedback.
18 properties2 required
Specification
The full machine-readable OpenAPI contract behind this narrative.
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