nocal-mcp

nocal is a calendar-connected, AI-ready second brain.

CommunityOnlineAPI key requiredGlobalFreeRead-only

What it can do

  • Notes Create: Create a new note in the user's nocal workspace. Requires schema_hash from notes_get_schema. Do NOT set aiGenerated attrs on new notes.
  • Notes Get: Fetch a single note by ID. Returns content_pm_json (ProseMirror JSON), content_pm_html (HTML), content_raw (plain text), and metadata.
  • Notes Get Schema: Fetch the full live ProseMirror schema and schema_hash. ALWAYS call this before note write tools.

What data it sees

Do you need an account

An API key from the service settings is required

nocal is a calendar-connected, AI-ready second brain. Connect via MCP to give agents the ability to read, search, and patch your notes database, turning nocal into a living knowledge base your agent can actually use.

How to connect

How to connect nocal-mcp to Claude

The server address to paste into Claude settings:

https://nocal-mcp--nocal.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect nocal-mcp to ChatGPT

The server address to paste into ChatGPT settings:

https://nocal-mcp--nocal.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect nocal-mcp to Cursor

The server address to paste into Cursor settings:

https://nocal-mcp--nocal.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (6)

Raw names from tools/list. Only developers need these.

notes_createCreate a new note in the user's nocal workspace. Requires schema_hash from notes_get_schema. Do NOT set aiGenerated attrs on new notes.
notes_getFetch a single note by ID. Returns content_pm_json (ProseMirror JSON), content_pm_html (HTML), content_raw (plain text), and metadata.
notes_get_schemaFetch the full live ProseMirror schema and schema_hash. ALWAYS call this before note write tools.
notes_list_recentList the user's most recently modified notes. Optionally filter by folder.
notes_patchApply one or more targeted path-based patches to an existing note. Use command=insert (relative_to path + before/after + content_pm) or command=delete (path). Paths reference content_pm_json from notes_get. Requires current last_modified_date and schema_hash from notes_get_schema. Do NOT set aiGenerated attrs in payloads; server applies top-level attrs on inserted blocks. NEVER expose path/index calculations or document-structure recounting to users.
notes_searchFull-text search across the user's notes. Returns ranked results with title and content snippets.