# Knowledge bases: Rename or describe a knowledge base (https://docs.envocal.ai/api-reference/knowledge-bases/rename-or-describe-a-knowledge-base/)

> Requires knowledge:write

## PUT `/v1/tenants/{tenantId}/knowledge-bases/{id}`

**Required permission:** `knowledge:write`

### Parameters

| Name | In | | Type | Description |
| --- | --- | --- | --- | --- |
| `tenantId` | path | required | string | Tenant id, or `current` for the key's own tenant. Must be the key's tenant or one of its sub-tenants. |
| `id` | path | required | string | Knowledge base id. |

### Request body

`application/json`: KnowledgeBaseUpdateDto

| Field | Type | | Description |
| --- | --- | --- | --- |
| `id` | string | required | Knowledge base id; must match the route. |
| `name` | string | required | Name, unique per tenant. |
| `description` | string | nullable | Description; null clears it. |

### Responses

**204**: Updated.

**400**: `id` in the body differs from the route.

**401**: Missing, invalid, revoked or expired API key.

**403**: The key lacks the required permission, or the tenant/resource is outside its reach.

**404**: Not found in this tenant.

**409**: The name is already used in the tenant.

**429**: Rate limit exceeded. Retry after the number of seconds in the Retry-After header.

### Example

```bash
curl -X PUT "https://api.envocal.ai/v1/tenants/current/knowledge-bases/{id}" \
  -H "Authorization: Bearer evk_eu_..." \
  -H "Content-Type: application/json" \
  -d '{"id":"string","name":"string"}'
```