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POST
/
api
/
v1
/
evals
/
trace
Trace
curl --request POST \
  --url https://platform.composo.ai/api/v1/evals/trace \
  --header 'API-Key: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "evaluation_criteria": "<string>",
  "model_core": "align-20250529",
  "trace": {
    "root_agent_instance_id": "<string>",
    "agent_instance_by_id": {}
  },
  "evaluate_latest": false
}'
{
  "request_id": "<string>",
  "results_by_agent_name": {}
}

Authorizations

​
API-Key
string
header
required

Body

application/json

Request model for a trace based evaluation of LLM responses against specified criteria.

​
evaluation_criteria
string
required

Criteria used for evaluation. Begins with one of the following: Reward, Penalize, Passes if, Fails if

​
trace
object
required

A Multi Agent Trace object representing the full trace of agent interactions.

​
model_core
enum<string>

The model core for reward evaluation. Defaults to align-20250503 if not specified.

Available options:
align-20250529,
align-lightning-20250731
​
evaluate_latest
boolean
default:false

Whether to evaluate only the latest response or all responses.

Response

Successful Response

Response model for multi-agent trace evaluations.

​
request_id
string
required

Unique identifier for the evaluation request.

​
results_by_agent_name
object
required

Mapping of Agent Name to their respective trace results.