API ReferenceSpans

Retrieve a span

Retrieve a span by its unique ID. Returns the full span including input, output, metrics, metadata, trace context, evaluation scores, and credit/budget info (limit_info).

Authentication

AuthorizationBearer

Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer <RESPAN_API_KEY>. For /api/responses, OpenAI or Azure OpenAI provider credentials go in Settings -> Providers or the request body credential_override field, not in this auth field.

Path parameters

unique_idstringRequired
The unique ID of the log to get.

Response

Successful response for Retrieve span
limit_infoobject

Errors

400
Bad Request Error
401
Unauthorized Error
404
Not Found Error
429
Too Many Requests Error
500
Internal Server Error