API Reference
Response Format

Response Format

Base URL: https://app.lisn.dev/api

Both voice and text analysis return a session object upon successful processing (HTTP 201).


Session Object

{
  "id": "ses_987654321",
  "assistant_id": "ast_abc123",
  "request_type": "voice",
  "status": "completed",
  "audio_duration_seconds": 120,
  "stt_status": "success",
  "llm_status": "success",
  "webhook_status": "success",
  "stt_cost": 0.04,
  "llm_cost": 0.01,
  "total_cost": 0.05,
  "summary_text": "Customer called to inquire about pricing...",
  "transcript_json": [
    {
      "speaker": "Speaker 1",
      "text": "Hello, how can I help you?",
      "start": 0.0,
      "end": 2.5
    }
  ],
  "raw_response": {
    "sentiment": "positive",
    "intent": "pricing_inquiry",
    "action_items": ["Send pricing sheet"],
    "confidence": 0.95
  },
  "created_at": "2026-03-08T14:30:00Z"
}

Status Values

StatusDescription
processingRequest is being processed
completedAll stages completed successfully
failedProcessing failed
partial_successSome stages succeeded, others failed