Add annotation

Add a note to a date on the main traffic chart.

MCP tool plausible_write → add_annotation

write Confirm

Does what right-click > Add note does on the chart. A site note is seen by all team members and by anyone using a shared link, and only team members with editor access or above can add one. Plausible allows 500 annotations per site. By default you confirm each call; you can switch that off for this tool.

Parameters

Parameters: add_annotation
NameTypeDescription
site string required string Domain of the site as the Sites page lists it, e.g. acme-shop.example.
date string required string Date of the note, YYYY-MM-DD.
note string required string Text of the note, 255 characters at most.
visibility string string personal (only you) or site (everyone with dashboard access). Default: site.

tools/call

JSON-RPC

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "plausible_write",
    "arguments": {
      "operation": "add_annotation",
      "arguments": {
        "site": "site",
        "date": "date",
        "note": "note"
      }
    }
  }
}

Example response

JSON

{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "site": "acme-shop.example",
    "date": "2026-10-14",
    "note": "Launch email sent to 8,000 subscribers",
    "visibility": "site",
    "status": "added"
  },
  "isError": false
}

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