Properties
| Name | Type | Description |
|---|---|---|
| name | string | Display name for the AI voice agent |
| system_prompt | object | Default instructions for the agent's personality and behavior on ALL calls (inbound and outbound). Can be overridden per-call via POST /v1/calls. |
| initial_greeting | object | Default opening line spoken on ALL calls (inbound and outbound), e.g. 'Hello, how can I help you today?'. Can be overridden per-call via POST /v1/calls. |
| voice_id | object | Voice the agent speaks with: a voice_id from list_available_voices or a legacy preset name (e.g. 'female-1'); defaults to the system voice if not set |
| speech_language | object | BCP-47 locale the agent listens and speaks in, e.g. 'en-US', 'hi-IN'. 'auto' (or unset) keeps multilingual auto-detection. Allowed values are listed under 'languages' by list_available_voices. |
| speaking_speed | object | Speaking pace multiplier from 0.6 (slower) to 1.5 (faster); 1.0 is the voice's natural pace. |
| transfer_number | object | Number a live call is transferred to. Only the owner phone is allowed, so leave it out or send the same E.164 number as owner_phone; setting owner_phone fills it in. |
| voicemail_message | object | Message the AI agent leaves if the call goes to voicemail |
| owner_phone | object | Owner's phone number in E.164 format (e.g. '+12125551234'). Calls from this number enter task mode. This is also the only number a live call can be transferred to. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/agentline-cloud/json-schema/agentline-cloud-agent-create-schema.json",
"title": "AgentCreate",
"x-generated": "2026-11-01",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/agentline-cloud-openapi.json#/components/schemas/AgentCreate",
"properties": {
"name": {
"type": "string",
"title": "Name",
"description": "Display name for the AI voice agent"
},
"system_prompt": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "System Prompt",
"description": "Default instructions for the agent's personality and behavior on ALL calls (inbound and outbound). Can be overridden per-call via POST /v1/calls."
},
"initial_greeting": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Initial Greeting",
"description": "Default opening line spoken on ALL calls (inbound and outbound), e.g. 'Hello, how can I help you today?'. Can be overridden per-call via POST /v1/calls."
},
"voice_id": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Voice Id",
"description": "Voice the agent speaks with: a voice_id from list_available_voices or a legacy preset name (e.g. 'female-1'); defaults to the system voice if not set"
},
"speech_language": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Speech Language",
"description": "BCP-47 locale the agent listens and speaks in, e.g. 'en-US', 'hi-IN'. 'auto' (or unset) keeps multilingual auto-detection. Allowed values are listed under 'languages' by list_available_voices."
},
"speaking_speed": {
"anyOf": [
{
"type": "number",
"maximum": 1.5,
"minimum": 0.6
},
{
"type": "null"
}
],
"title": "Speaking Speed",
"description": "Speaking pace multiplier from 0.6 (slower) to 1.5 (faster); 1.0 is the voice's natural pace."
},
"transfer_number": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Transfer Number",
"description": "Number a live call is transferred to. Only the owner phone is allowed, so leave it out or send the same E.164 number as owner_phone; setting owner_phone fills it in."
},
"voicemail_message": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Voicemail Message",
"description": "Message the AI agent leaves if the call goes to voicemail"
},
"owner_phone": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Owner Phone",
"description": "Owner's phone number in E.164 format (e.g. '+12125551234'). Calls from this number enter task mode. This is also the only number a live call can be transferred to."
}
},
"additionalProperties": false,
"type": "object",
"required": [
"name"
]
}
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