Accounts
Calls, Messages, Stages
Corpora, Query, Sources
Webhooks
List Call Stages
Lists all stages that occurred during the specified call
curl --request GET \
--url https://api.ultravox.ai/api/calls/{call_id}/stages \
--header 'X-API-Key: <api-key>'{
"next": "http://api.example.org/accounts/?cursor=cD00ODY%3D\"",
"previous": "http://api.example.org/accounts/?cursor=cj0xJnA9NDg3",
"results": [
{
"callId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"callStageId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"created": "2023-11-07T05:31:56Z",
"inactivityMessages": [
{
"duration": "<string>",
"message": "<string>",
"endBehavior": "END_BEHAVIOR_UNSPECIFIED"
}
],
"languageHint": "<string>",
"model": "fixie-ai/ultravox",
"systemPrompt": "<string>",
"temperature": 123,
"timeExceededMessage": "<string>",
"voice": "<string>",
"externalVoice": {
"elevenLabs": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"useSpeakerBoost": true,
"style": 123,
"similarityBoost": 123,
"stability": 123,
"pronunciationDictionaries": [
{
"dictionaryId": "<string>",
"versionId": "<string>"
}
]
},
"cartesia": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"emotion": "<string>"
},
"playHt": {
"userId": "<string>",
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"quality": "<string>",
"temperature": 123,
"emotion": 123,
"voiceGuidance": 123,
"styleGuidance": 123,
"textGuidance": 123,
"voiceConditioningSeconds": 123
},
"lmnt": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"conversational": true
}
},
"errorCount": 123,
"experimentalSettings": "<any>",
"initialState": {}
}
],
"total": 123
}Stages represent distinct segments of the conversation where different parameters (e.g. system prompt or tools) may have been used.
Authorizations
API key
Path Parameters
Query Parameters
The pagination cursor value.
Number of results to return per page.
Response
The number of errors in this call stage.
Experimental settings for this call stage.
The initial state of the call stage which is readable/writable by tools.
Messages spoken by the agent when the user is inactive for the specified duration. Durations are cumulative, so a message m > 1 with duration 30s will be spoken 30 seconds after message m-1.
A message the agent should say after some duration. The duration's meaning varies depending on the context.
The duration after which the message should be spoken.
The message to speak.
The behavior to exhibit when the message is finished being spoken.
END_BEHAVIOR_UNSPECIFIED, END_BEHAVIOR_HANG_UP_SOFT, END_BEHAVIOR_HANG_UP_STRICT BCP47 language code that may be used to guide speech recognition.
16A voice not known to Ultravox Realtime that can nonetheless be used for a call. Such voices are significantly less validated than normal voices and you'll be responsible for your own TTS-related errors. Exactly one field must be set.
A voice served by ElevenLabs.
The ID of the voice in ElevenLabs.
The ElevenLabs model to use.
The speaking rate. Must be between 0.7 and 1.2. Defaults to 1. See https://elevenlabs.io/docs/api-reference/text-to-speech/convert#request.body.voice_settings.speed
A reference to a pronunciation dictionary within ElevenLabs.
A voice served by Cartesia.
The ID of the voice in Cartesia.
The Cartesia model to use.
The speaking rate. Must be between -1 and 1. Defaults to 0. See https://docs.cartesia.ai/api-reference/tts/tts#send.Generation%20Request.voice.Ttsrequest%20ID%20Specifier.__experimental_controls.speed
A voice served by PlayHT.
The "user id" for the PlayHT API. This must be the user who owns the Play API key associated with your Ultravox account.
The ID of the voice in PlayHT. Typically an s3 location.
The PlayHT model (aka "engine") to use.
The speaking rate. Must be between 0 and 5. Defaults to 1.
A voice served by LMNT.
The ID of the voice in LMNT.
The LMNT model to use.
The speaking rate. Must be between 0.25 and 2. Defaults to 1. See https://docs.lmnt.com/api-reference/speech/synthesize-speech-bytes#body-speed
"http://api.example.org/accounts/?cursor=cD00ODY%3D\""
"http://api.example.org/accounts/?cursor=cj0xJnA9NDg3"
123
curl --request GET \
--url https://api.ultravox.ai/api/calls/{call_id}/stages \
--header 'X-API-Key: <api-key>'{
"next": "http://api.example.org/accounts/?cursor=cD00ODY%3D\"",
"previous": "http://api.example.org/accounts/?cursor=cj0xJnA9NDg3",
"results": [
{
"callId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"callStageId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"created": "2023-11-07T05:31:56Z",
"inactivityMessages": [
{
"duration": "<string>",
"message": "<string>",
"endBehavior": "END_BEHAVIOR_UNSPECIFIED"
}
],
"languageHint": "<string>",
"model": "fixie-ai/ultravox",
"systemPrompt": "<string>",
"temperature": 123,
"timeExceededMessage": "<string>",
"voice": "<string>",
"externalVoice": {
"elevenLabs": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"useSpeakerBoost": true,
"style": 123,
"similarityBoost": 123,
"stability": 123,
"pronunciationDictionaries": [
{
"dictionaryId": "<string>",
"versionId": "<string>"
}
]
},
"cartesia": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"emotion": "<string>"
},
"playHt": {
"userId": "<string>",
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"quality": "<string>",
"temperature": 123,
"emotion": 123,
"voiceGuidance": 123,
"styleGuidance": 123,
"textGuidance": 123,
"voiceConditioningSeconds": 123
},
"lmnt": {
"voiceId": "<string>",
"model": "<string>",
"speed": 123,
"conversational": true
}
},
"errorCount": 123,
"experimentalSettings": "<any>",
"initialState": {}
}
],
"total": 123
}