⚠️ SIP Billing Starts November 10, 2025 - See Ultravox Pricing for details.
Overview
Accounts
Agents
Calls, Messages, Stages
- Calls Overview
- GETList Calls
- GETGet Call
- POSTCreate Call
- DELDelete Call
- GETList Call Messages
- GETList Call Tools
- GETGet Call Recording
- GETList Call Stages
- GETGet Call Stage
- GETList Call Stage Messages
- GETList Call Stage Tools
- GETGet Call Stage Message Audio
- GETList Deleted Calls
- GETGet Deleted Call
- GETList Call Events
- GETGet Sip Logs for a call
- POSTSend Data Message to Call
Corpora, Query, Sources
- Corpus Service (RAG) Overview
- GETList Corpora
- POSTCreate Corpus
- GETGet Corpus
- PATCHUpdate Corpus
- DELDelete Corpus
- POSTQuery Corpus
- GETList Corpus Sources
- POSTCreate Corpus Source
- GETGet Corpus Source
- PATCHUpdate Corpus Source
- DELDelete Corpus Source
- GETList Corpus Source Documents
- GETGet Corpus Source Document
- POSTCreate Corpus File Upload
Tools
Voices
Webhooks
SIP Configuration
⚠️ SIP Billing Starts November 10, 2025 - See Ultravox Pricing for details.
Voices
Delete Voice
Deletes the specified voice
DELETE
/
api
/
voices
/
{voice_id}
cURL
Copy
Ask AI
curl --request DELETE \
--url https://api.ultravox.ai/api/voices/{voice_id} \
--header 'X-API-Key: <api-key>'⌘I
cURL
Copy
Ask AI
curl --request DELETE \
--url https://api.ultravox.ai/api/voices/{voice_id} \
--header 'X-API-Key: <api-key>'