---
title: "Add an internal note"
method: POST
path: "/v3/client-book/client/{id}/note"
tags: ["Client Book"]
---

# Add an internal note

`POST /v3/client-book/client/{id}/note`

## Request

- Base URL: `https://api.rhinoartisan.com`
- URL: `https://api.rhinoartisan.com/v3/client-book/client/{id}/note`
- Auth: API key in header `apikey`
- TypeScript: <https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/docs/v3/client-book/client/:id/note/post.ts> (a function with typed inputs; its response is checked against the schema)

Seller note with author and date. Internal: never shown to the buyer.

## Path parameters

- `id` integer, required

## Request body

- object
  - `content` string, required

## Response `201`

The note

## Other responses

- `400`: MISSING_NOTE_CONTENT | NOTE_TOO_LONG
- `404`: CLIENT_NOT_FOUND

## Changes

- **2026-10-02** `82c79770c36b`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/changes/v3/client-book/client/:id/note/post.md)

---

[API](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api.md) - [All operations](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/llms.txt) - [OpenAPI document](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/revisions/f0e1d3d69cfb?raw)