curl -X PATCH 'https://api.elevenlabs.io/v1/convai/tools/tool-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "tool_config": {
    "response_timeout_secs": 20,
    "type": "webhook"
  },
  "response_mocks": [
    {
      "parameter_conditions": [
        {
          "eval": {
            "type": "[recursive or deeply nested schema]",
            "description": "[recursive or deeply nested schema]"
          },
          "path": "string"
        }
      ],
      "mock_result": "string",
      "is_error": false
    }
  ]
}'

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

> Update Tool

## 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/tools/tool-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"tool_config":{"response_timeout_secs":20,"type":"webhook"},"response_mocks":[{}]}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| tool_id | path | string | Yes | ID of the requested tool. |
| tool_config | body | object | Yes | Configuration for the tool |
| response_mocks | body | object[] | No | Mock responses with optional parameter conditions. Evalua... |

## Response (200 OK)
{"id":"string","tool_config":{"response_timeout_secs":20,"type":"webhook"}}

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

PATCH

/v1/convai/tools/{tool_id}

ElevenLabs API

Update Tool

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
→ 207 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/tools/tool-id' \  -H "xi-api-key: $ELEVENLABS_API_KEY" \  -H 'Content-Type: application/json' \  -d '{  "tool_config": {    "response_timeout_secs": 20,    "type": "webhook"  },  "response_mocks": [    {      "parameter_conditions": [        {          "eval": {            "type": "[recursive or deeply nested schema]",            "description": "[recursive or deeply nested schema]"          },          "path": "string"        }      ],      "mock_result": "string",      "is_error": false    }  ]}'

Get a free ElevenLabs API key → sponsored

Parameters

Name	In	Type	Required	Description
tool_id	path	string	Yes	ID of the requested tool.
tool_config	body	object	Yes	Configuration for the tool
response_mocks	body	object[]	No	Mock responses with optional parameter conditions. Evaluated top-to-bottom; first match wins.

Response 200 OK

{
  "id": "string",
  "tool_config": {
    "response_timeout_secs": 20,
    "type": "webhook"
  },
  "access_info": {
    "access_source": "creator",
    "creator_email": "john.doe@example.com",
    "creator_name": "John Doe",
    "is_creator": true,
    "role": "admin"
  },
  "usage_stats": {
    "total_calls": 0,
    "avg_latency_secs": 0
  },
  "response_mocks": [
    {
      "parameter_conditions": [
        {
          "eval": {
            "type": "[recursive or deeply nested schema]",
            "description": "[recursive or deeply nested schema]"
          },
          "path": "string"
        }
      ],
      "mock_result": "string",
      "is_error": false
    }
  ]
}