Get a specific assistant version

Example response

{
  "tools": [
    {
      "webhook": {
        "url": "https://example.com/api/v1/function",
        "body_parameters": {
          "properties": {
            "age": {
              "description": "The age of the customer.",
              "type": "integer"
            },
            "location": {
              "description": "The location of the customer.",
              "type": "string"
            }
          },
          "required": [
            "age",
            "location"
          ],
          "type": "object"
        },
        "path_parameters": {
          "properties": {
            "id": {
              "description": "The id of the customer.",
              "type": "string"
            }
          },
          "required": [
            "id"
          ],
          "type": "object"
        },
        "query_parameters": {
          "properties": {
            "page": {
              "description": "The page number.",
              "type": "integer"
            }
          },
          "required": [
            "page"
          ],
          "type": "object"
        },
        "preset_body_fields": {
          "account_id": "{{customer_id}}",
          "source": "telnyx-assistant"
        },
        "preset_query_params": {
          "caller": "{{telnyx_end_user_target}}",
          "channel": "voice"
        },
        "messages": [
          {
            "type": "request_start",
            "content": "Let me look that up for you."
          },
          {
            "type": "request_response_delayed",
            "content": "Still working on that.",
            "timing_ms": 5000
          }
        ]
      }
    }
  ],
  "a2a_agents": [
    {
      "name": "billing_agent",
      "url": "https://agents.example.com",
      "headers": [
        {
          "name": "X-Api-Key",
          "value": "{{#integration_secret}}my_agent_api_key{{/integration_secret}}"
        }
      ],
      "timeout_ms": 30000,
      "poll_interval_ms": 500
    }
  ],
  "avatar_settings": {
    "provider": "telnyx",
    "avatar_id": "elena",
    "background_id": "office",
    "model": "foxtrot-1"
  },
  "transcription": {
    "fallback_models": [
      {
        "model": "deepgram/nova-3",
        "language": "en"
      },
      {
        "model": "soniox/stt-rt-v5",
        "settings": {
          "context": "Telnyx,VoIP,SIP"
        }
      }
    ],
    "challenger": {
      "model": "deepgram/nova-3",
      "language": "en",
      "rule": "best_turn"
    }
  },
  "insight_settings": {
    "model": "zai-org/GLM-5.3-Flash"
  },
  "conversation_flow": {
    "edges": [
      {
        "condition": {
          "prompt": "The caller is asking about a bill or charge.",
          "type": "llm"
        },
        "id": "e_intake_to_billing",
        "start_node_id": "n_intake",
        "target": {
          "node_id": "n_billing",
          "type": "node"
        }
      },
      {
        "condition": {
          "prompt": "The caller has explicitly asked for a human.",
          "type": "llm"
        },
        "id": "e_intake_to_escalation_assistant",
        "start_node_id": "n_intake",
        "target": {
          "assistant_id": "assistant-human-handoff",
          "position": {
            "x": 600,
            "y": 80
          },
          "type": "assistant",
          "voice_mode": "distinct"
        }
      }
    ],
    "nodes": [
      {
        "type": "prompt",
        "id": "n_intake",
        "instructions": "Greet the caller and ask what they're calling about.",
        "name": "Intake",
        "position": {
          "x": 120,
          "y": 80
        },
        "shared_tool_ids": [
          "tool-faq-kb"
        ]
      },
      {
        "type": "prompt",
        "id": "n_billing",
        "instructions": "Focus on billing questions. Look up the caller's latest invoice with the billing tool before answering.",
        "instructions_mode": "append",
        "model": "moonshotai/Kimi-K2.6",
        "name": "Billing",
        "position": {
          "x": 420,
          "y": 80
        },
        "shared_tool_ids": [
          "tool-billing-lookup"
        ],
        "tools_mode": "append"
      }
    ],
    "start_node_id": "n_intake"
  }
}