curl -X PATCH 'https://api.elevenlabs.io/v1/convai/settings' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "conversation_initiation_client_data_webhook": {
    "request_headers": {
      "Content-Type": "application/json"
    },
    "url": "https://example.com/webhook"
  },
  "webhooks": {
    "post_call_webhook_id": "string",
    "events": [
      "transcript"
    ],
    "transcript_format": "json",
    "send_audio": true
  },
  "can_use_mcp_servers": false,
  "rag_retention_period_days": 10,
  "conversation_embedding_retention_days": 0,
  "default_livekit_stack": "standard"
}'

# PATCH /v1/convai/settings (ElevenLabs API)
Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03

> Update Convai Settings

## Critical Gotchas
* Authentication uses the non-standard `xi-api-key` header, not `Authorization: Bearer`. Sending a Bearer token returns HTTP 401.
* Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (`--output speech.mp3`) rather than parsing it.

## cURL
curl -X PATCH 'https://api.elevenlabs.io/v1/convai/settings' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"conversation_initiation_client_data_webhook":{"request_headers":{},"url":"https://example.com/webhook"},"webhooks":{"post_call_webhook_id":"string","events":[]}}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| conversation_initiation_client_data_webhook | body | object | No | Request body field conversation_initiation_client_data_we... |
| webhooks | body | object | No | Request body field webhooks. |
| can_use_mcp_servers | body | boolean | No | Whether the workspace can use MCP servers |
| rag_retention_period_days | body | integer | No | Request body field rag_retention_period_days. |

## Response (200 OK)
{"conversation_initiation_client_data_webhook":{"request_headers":{},"url":"https://example.com/webhook"},"webhooks":{"post_call_webhook_id":"string","events":[]}}

---
Need an API key? Get one at https://elevenlabs.io/app/sign-up

PATCH

/v1/convai/settings

ElevenLabs API

Update Convai Settings

Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 225 tokens · Vary: Accept

Critical gotchas

Authentication uses the non-standard xi-api-key header, not Authorization: Bearer. Sending a Bearer token returns HTTP 401.

Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (--output speech.mp3) rather than parsing it.

cURL

curl -X PATCH 'https://api.elevenlabs.io/v1/convai/settings' \  -H "xi-api-key: $ELEVENLABS_API_KEY" \  -H 'Content-Type: application/json' \  -d '{  "conversation_initiation_client_data_webhook": {    "request_headers": {      "Content-Type": "application/json"    },    "url": "https://example.com/webhook"  },  "webhooks": {    "post_call_webhook_id": "string",    "events": [      "transcript"    ],    "transcript_format": "json",    "send_audio": true  },  "can_use_mcp_servers": false,  "rag_retention_period_days": 10,  "conversation_embedding_retention_days": 0,  "default_livekit_stack": "standard"}'

Get a free ElevenLabs API key → sponsored

Parameters

Name	In	Type	Required	Description
conversation_initiation_client_data_webhook	body	object	No	Request body field conversation_initiation_client_data_webhook.
webhooks	body	object	No	Request body field webhooks.
can_use_mcp_servers	body	boolean	No	Whether the workspace can use MCP servers
rag_retention_period_days	body	integer	No	Request body field rag_retention_period_days.
conversation_embedding_retention_days	body	integer	No	Days to retain conversation embeddings. None means use the system default (30 days).
default_livekit_stack	body	string	No	Request body field default_livekit_stack.

Response 200 OK

{
  "conversation_initiation_client_data_webhook": {
    "request_headers": {
      "Content-Type": "application/json"
    },
    "url": "https://example.com/webhook"
  },
  "webhooks": {
    "post_call_webhook_id": "string",
    "events": [
      "transcript"
    ],
    "transcript_format": "json",
    "send_audio": true
  },
  "can_use_mcp_servers": false,
  "rag_retention_period_days": 10,
  "conversation_embedding_retention_days": 0,
  "default_livekit_stack": "standard"
}