---
title: "Add a watcher"
method: POST
path: "/tasks/{taskId}/watchers"
tags: ["Watchers"]
---

# Add a watcher

`POST /tasks/{taskId}/watchers`

## Request

- Base URL: `https://tasg.app/api/v1`
- URL: `https://tasg.app/api/v1/tasks/{taskId}/watchers`
- Auth: HTTP bearer

Idempotent. Viewers may only add themselves; other roles may add any project member.

## Path parameters

- `taskId` string, uuid, required

## Request body

- object
  - `user_id` string, uuid, required

## Response `201`

Added (or already watching).

- object
  - `watcher` Watcher, required
    - `user_id` string, uuid, required
    - `full_name` string, required
    - `avatar_url` string, uri, nullable

## Other responses

- `400`: Validation failed: the body or query did not match the schema, or a business rule was violated. `error` says which.
- `401`: Missing, invalid, expired or revoked credentials.
- `403`: Authenticated, but not allowed: not a member, insufficient project role or the API token lacks the required scope.
- `404`: Not found, or not visible to the caller (tenancy is enforced: foreign resources look identical to missing ones).
- `429`: Rate limited. Back off and retry after the window in the `RateLimit-*` headers.

---

[API](https://skmtc.dev/tasg/apis/tasg-api.md) · [All operations](https://skmtc.dev/tasg/apis/tasg-api/llms.txt) · [OpenAPI document](https://skmtc.dev/tasg/apis/tasg-api/revisions/cd2a1dbaf5cf?raw)