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API ReferenceTraces

Get a trace

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Read a trace as OpenTelemetry spans built from its Events: every API request is a server span, a Task an invoke_agent span with its LLM calls (chat) and tool uses beneath it, following the GenAI semantic conventions (pinned, named in semconv). Send a W3C traceparent on any request to continue your own trace into BCTRL; Runs and Tasks carry their traceId.

Authentication

AuthorizationBearer

Use Bearer <api-key>.

Path parameters

traceIdstringRequired

Headers

BCTRL-VersionenumOptional
Dated API version. Defaults to the release pinned when the API key was created.
Allowed values:
BCTRL-SpacestringOptional
Select one authorized Space by its opaque ID or unique name. Omission uses the operation default.
BCTRL-Subaccount-IdstringOptional
Optional effective subaccount context for organization API keys. Subaccount API keys are already scoped and cannot use this header to act as another subaccount.

Response headers

BCTRL-Request-IdstringOptional
Current request identifier, also echoed in errors.
BCTRL-VersionstringOptional
Negotiated dated API version.
RateLimit-Limitinteger

Evaluated policy limit; zero when no finite policy was evaluated.

RateLimit-Remaininginteger

Remaining policy budget; zero when no finite policy was evaluated.

RateLimit-Resetinteger

Seconds until reset; zero when no finite policy was evaluated.

Response

OK
object"trace"
semconvobject
The pinned OpenTelemetry GenAI semantic conventions version.
spanslist of objects

Ordered by start time; parents before their children.

traceIdstring

Errors

401
Unauthorized Error
403
Forbidden Error
404
Not Found Error