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LangWatch Dataset API

The Dataset API from LangWatch — 7 operation(s) for dataset.

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

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

This API exposes 12 operations across 7 paths, and defines 1 schema. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against a single base URL, https://app.langwatch.ai.

12 operations 7 paths 1 schemas 2 DELETE3 GET2 PATCH5 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Server
https://app.langwatch.ai
Authentication
API Key, HTTP Bearer
Resource Areas
1

Authentication & Security 2

LangWatch Dataset API declares 2 security schemes for authenticating requests. An API key is passed in the header as X-Auth-Token (project_api_key). It accepts HTTP bearer tokens (admin_api_key). By default, every request must be authenticated.

  • project_api_key — Project API key for sending traces and accessing project-scoped resources. Format: sk-lw-... (no underscore). Obtain one by creating a project via the Admin AP…
  • admin_api_key — Admin API key for organization-level operations (managing projects, API keys). Create one in Settings API Keys or via POST /api/api-keys. Format: sk-lw-{id}{se…

Paths & Operations 12

Across 7 paths, the API surfaces 12 operations — 2 DELETE, 3 GET, 2 PATCH, 5 POST. Each is listed below with its method, path, parameters, and response codes.

Dataset 12
GET
/api/dataset
List all non-archived datasets for the project (paginated)
getApiDataset 2 params
POST
/api/dataset
Create a new dataset
postApiDataset body
POST
/api/dataset/upload
Create a new dataset from an uploaded file (CSV, JSON, JSONL)
postApiDatasetUpload
GET
/api/dataset/{slugOrId}
Get a dataset by its slug or id.
getApiDatasetBySlugOrId 1 param → 200400401404422500
PATCH
/api/dataset/{slugOrId}
Update a dataset by its slug or id
patchApiDatasetBySlugOrId 1 param body
DELETE
/api/dataset/{slugOrId}
Archive a dataset (soft-delete)
deleteApiDatasetBySlugOrId 1 param
POST
/api/dataset/{slugOrId}/records
Create records in a dataset in batch
postApiDatasetBySlugOrIdRecords 1 param body
GET
/api/dataset/{slugOrId}/records
List records for a dataset (paginated)
getApiDatasetBySlugOrIdRecords 3 params
DELETE
/api/dataset/{slugOrId}/records
Delete records from a dataset by IDs
deleteApiDatasetBySlugOrIdRecords 1 param body
PATCH
/api/dataset/{slugOrId}/records/{recordId}
Update or create a record in a dataset
patchApiDatasetBySlugOrIdRecordsByRecordId 2 params body
POST
/api/dataset/{slugOrId}/upload
Upload a file (CSV, JSON, JSONL) to an existing dataset
postApiDatasetBySlugOrIdUpload 1 param
POST
/api/dataset/{slug}/entries
Add entries to a dataset
postApiDatasetBySlugEntries 1 param body

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is DatasetPostEntries (1 property). Each schema is shown below with its type and property counts.

DatasetPostEntries
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langwatch-dataset-api-openapi.yml Raw ↑

Other APIs LangWatch publishes across the network.

LangWatch Agents API
LangWatch Analytics API
LangWatch Annotations API
LangWatch Api Keys API
LangWatch Budgets API
LangWatch Cache Rules API
LangWatch Dashboards API
LangWatch Evaluations V3 API
LangWatch Evaluators API
LangWatch Graphs API
LangWatch LangWatch API API
LangWatch Model Defaults API
Where this information came from

This is an independent, third-party profile of LangWatch Dataset 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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