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LangWatch Trace API

The Trace API from LangWatch — 3 operation(s) for trace.

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

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

This API exposes 3 operations across 3 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.

3 operations 3 paths 1 schemas 1 GET2 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 Trace 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 3

Across 3 paths, the API surfaces 3 operations — 1 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Trace 3
GET
/api/trace/{id}
Returns single trace details based on the ID supplied
1 param → 200400
POST
/api/trace/{id}/share
Returns a public path for a trace
1 param → 200400
POST
/api/trace/{id}/unshare
Deletes a public path for a trace
1 param → 200400

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is Error (2 properties). Each schema is shown below with its type and property counts.

Error
object
2 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

langwatch-trace-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 Dataset API
LangWatch Evaluations V3 API
LangWatch Evaluators API
LangWatch Graphs API
LangWatch LangWatch API API
Where this information came from

This is an independent, third-party profile of LangWatch Trace 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.

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