---
title: "Create a timeline annotation"
method: POST
path: "/annotations"
tags: ["Annotations"]
---

# Create a timeline annotation

`POST /annotations`

## Request body

- object
  - `project_id` integer, required
  - `title` string, required
  - `annotation_date` string, date
  - `description` string
  - `color` string
  - `annotation_category_id` integer

## Response `201`

Created

## Other responses

- `403` — API key lacks write permission
- `422` — Invalid parameters

---

[API](https://skmtc.dev/llmpulse/apis/llm-pulse-api.md) · [All operations](https://skmtc.dev/llmpulse/apis/llm-pulse-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/llmpulse/llm-pulse-api/revisions/b1f6040a24b9/schema)