curl -X PATCH 'https://api.elevenlabs.io/v1/convai/knowledge-base/documentation-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "name": "string",
  "content": "string"
}'

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

> Update Document

## 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/knowledge-base/documentation-id' \
  -H "xi-api-key: $ELEVENLABS_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"name":"string","content":"string"}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| documentation_id | path | string | Yes | The id of a document from the knowledge base. This is ret... |
| name | body | string | No | A custom, human-readable name for the document. |
| content | body | string | No | Updated content for the document. Only supported for text... |

## Response (200 OK)
{"id":"string","name":"string"}

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

PATCH

/v1/convai/knowledge-base/{documentation_id}

ElevenLabs API

Update Document

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
→ 223 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/knowledge-base/documentation-id' \  -H "xi-api-key: $ELEVENLABS_API_KEY" \  -H 'Content-Type: application/json' \  -d '{  "name": "string",  "content": "string"}'

Get a free ElevenLabs API key → sponsored

Parameters

Name	In	Type	Required	Description
documentation_id	path	string	Yes	The id of a document from the knowledge base. This is returned on document addition.
name	body	string	No	A custom, human-readable name for the document.
content	body	string	No	Updated content for the document. Only supported for text documents, URL documents with auto-sync disabled, and file documents.

Response 200 OK

{
  "id": "string",
  "name": "string",
  "metadata": {
    "created_at_unix_secs": 0,
    "last_updated_at_unix_secs": 0,
    "size_bytes": 0
  },
  "supported_usages": [
    "auto"
  ],
  "access_info": {
    "access_source": "creator",
    "creator_email": "john.doe@example.com",
    "creator_name": "John Doe",
    "is_creator": true,
    "role": "admin"
  },
  "folder_parent_id": "string",
  "folder_path": [
    {
      "id": "string",
      "name": "string"
    }
  ],
  "type": "string",
  "url": "string",
  "extracted_inner_html": "string",
  "content_format": "html",
  "auto_sync_info": {
    "minimum_frequency_days": 7,
    "auto_remove": false,
    "consec_failures": 0,
    "next_refresh_by": 0
  }
}