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GET
/
api
/
traces
/
{traceId}
Python
import requests

url = "https://app.langwatch.ai/api/traces/{traceId}"

headers = {"X-Auth-Token": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)
{}

Authorizations

​
X-Auth-Token
string
header
required

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 API or the LangWatch UI.

Path Parameters

​
traceId
string
required

The trace ID — either the full 32-char ID or a unique prefix (≥ 8 chars). Prefix lookup is scoped to the authenticated project.

Query Parameters

​
format
enum<string>

Output format: 'digest' (default, AI-readable) or 'json' (full raw data)

Available options:
digest,
json
​
llmMode
enum<string>

Deprecated: use format=digest instead

Available options:
true,
false,
1,
0

Response

Trace detail with spans, evaluations, and ASCII tree

The response is of type object.