v51

OpenAPI 3.1.0Apache 2.0raw.githubusercontent.com2026-08-01308532588.1 KB

Spans

Get span by id

get/v1/private/spans/{id}

Path parameters

idstring uuid required

Query parameters

strip_attachmentsboolean

If true, returns attachment references like [file.png]; if false, downloads and reinjects attachment content from S3 (default: false for backward compatibility)

Response

Span resource

idstring uuid

project_namestring

If null, the default project is used

project_idstring uuid

trace_idstring uuid

parent_span_idstring uuid

namestring

type'general' | 'tool' | 'llm' | 'guardrail'

start_timestring date-time required

end_timestring date-time

inputJsonListStringPublic

outputJsonListStringPublic

metadataJsonListStringPublic

modelstring

providerstring

tagsstring[]

usageobject

created_atstring date-time

last_updated_atstring date-time

created_bystring

last_updated_bystring

total_estimated_costnumber

total_estimated_cost_versionstring

durationnumber double

Duration in milliseconds as a decimal number to support sub-millisecond precision

ttftnumber double

Time to first token in milliseconds

source'sdk' | 'experiment' | 'playground' | 'optimization' | 'evaluator'

environmentstring