---
title: "Add a tool to an assistant"
method: POST
path: "/assistants/{assistant_id}/tools/{tool_id}"
tags: ["Assistant"]
---

# Add a tool to an assistant

`POST /assistants/{assistant_id}/tools/{tool_id}`

Enable a tenant tool for the assistant.

## Path parameters

- `assistant_id` integer, required
- `tool_id` integer, required — ID of the tool to enable.

## Query parameters

- `cookie_name` string, nullable

## Response `201`

Successful Response

- AssistantTool
  - `created_at` string, date-time — UTC timestamp when the record was created.
  - `updated_at` string, date-time — UTC timestamp when the record was last updated.
  - `assistant_id` integer, required — ID of the assistant the tool is attached to.
  - `tool_id` integer, required — ID of the tool attached to the assistant.

## Other responses

- `401` — Missing or invalid authentication.
- `403` — Not the creator, or the tool is not enabled for the tenant.
- `404` — Assistant, owning user, or tool does not exist.
- `422` — Validation Error

---

[API](https://skmtc.net/neulandai/apis/neuland-ai-hub-api.md) · [All operations](https://skmtc.net/neulandai/apis/neuland-ai-hub-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/neulandai/neuland-ai-hub-api/revisions/b53e89b98c2b/schema)