Comment on a task

Comment on a task

Adds a comment to a task, optionally assigned to someone, and returns the new comment's id.

Note: The task's assignees and watchers are always notified. On the MCP server pass entity_type: "task" with the task id as entity_id; on the API notify_all is required.

Set up

Use the first option your agent supports.

MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

{ "mcpServers": { "clickup": { "url": "https://mcp.clickup.com/mcp" } } }

Call the MCP tool clickup_create_comment.

Server URL: https://mcp.clickup.com/mcp

API (official)

• Base URL: https://api.clickup.com/api
• Endpoint: POST /v2/task/{task_id}/comment
• Auth: send the header Authorization: $CLICKUP_API_KEY
• Get a key: https://app.clickup.com/settings/apps
• Docs: https://developer.clickup.com/docs/authentication

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
• Never print API keys.