awkoy/notion-mcp-server

npm version

Give your AI read/write access to Notion with one token and one command. Claude Code, Claude Desktop, Cursor, VS Code, Cline, Zed, anything that speaks MCP: it can create pages, query databases, append blocks, apply templates, comment and upload files, in plain language.

Notion ships its own MCP server. Where this one differs:

• It authenticates with a token, so it runs headless. Notion's hosted MCP is OAuth-only and someone has to click "Authorize". This one works in CI, cron jobs, background agents and self-hosted deployments.
• It doesn't spend your context on tool schemas. The official open-source server loads 24 endpoint schemas into the model's context at connection: 17,163 tokens, re-sent with every request for the rest of the session. This one loads three tools, 1,005 tokens. That is 94% less, 17× smaller, and operation schemas are fetched only when a task actually touches one, so even a heavy eight-operation session stays 76% lighter. Measured, reproducible →

Responses are slimmed on the way back too: a database query returns flat name → value rows, typically 5–10× fewer tokens than Notion's raw properties bags, with nothing lost. Batched mutations with atomic rollback, idempotency keys, retry on rate limits and self-healing validation errors are built in, and the comparison below has the rest.

Quick start

1. Get a Notion token. Open app.notion.com/developers/tokens → + New token → name it, pick your workspace → Create token → copy the ntn_… value. A Personal Access Token sees everything you can see, with no per-page sharing. (Page missing or empty? Your admin disabled PATs — see auth alternatives.)

2. Install it.

npx add-mcp notion-mcp-server --env NOTION_TOKEN=ntn_paste_your_token_here

add-mcp finds the MCP clients on your machine and writes the config for the ones you pick: Claude Code, Claude Desktop, Cursor, VS Code, Codex, Gemini CLI, Cline, Windsurf, Zed and a dozen others. Add -g to install at user level instead of the current project, -a claude-code to skip the picker, --all to write every client at once.

Keep the --env flag. Without it the entry is written without a token, and the server starts and then fails every call with an auth error.

{
  "mcpServers": {
    "notion": {
      "command": "npx",
      "args": ["-y", "notion-mcp-server"],
      "env": { "NOTION_TOKEN": "ntn_paste_your_token_here" }
    }
  }
}

claude mcp add notion -s user \
  -e NOTION_TOKEN=ntn_paste_your_token_here \
  -- npx -y notion-mcp-server

gemini extensions install https://github.com/awkoy/notion-mcp-server

claude mcp add notion -s user \
  -e NOTION_TOKEN=ntn_paste_your_token_here \
  -- docker run --rm -i -e NOTION_TOKEN ghcr.io/awkoy/notion-mcp-server:latest

3. Try it. In a new chat:

"Use Notion to make a page called 'Hello from my agent' and add a checklist of three things to try today."

Your AI calls notion_write and replies with a live page link.

What your AI can do with it

• "Find every row in my Tasks database where Status is 'Doing' and tell me which are overdue." — typed where filters, flattened rows
• "Rename these 50 pages to the new convention." — one batched call, 10-way parallel, idempotent retry
• "Create a page from my 'Weekly review' template and fill in this summary."
• "Rewrite that spec page: fix the headings and add a code sample." — markdown round-trip via get_page_markdown → edit → update_page_markdown
• "Comment on yesterday's meeting notes with a one-paragraph summary."
• "Upload this diagram to the design page." — single- and multi-part uploads
• "Look at the screenshot on that bug report and tell me what's wrong." — get_image hands the model the picture itself

The full catalog is the operations menu: 47 operations behind three tools.

Which Notion MCP should you use?

To chat with your Notion in claude.ai's web UI, use Notion's hosted connector: it's one click. Use this server when the agent runs unattended, when context cost matters, or when you want batch and idempotent semantics and your own host.

Configuration

Token: PAT or internal integration

Both go in the same NOTION_TOKEN env var; only where you get them differs.

💡 Most object_not_found errors are the wrong auth choice rather than a bug: an Internal Integration token that was never Connected to the page. Switch to a PAT.

Environment variables

HTTP-transport variables (MCP_TRANSPORT, PORT, HOST, MCP_AUTH_TOKEN, …) are in Remote / HTTP transport.

Upgrading from v1.x or v2.x? Every env var still works unchanged. The break is the tool surface: v1's five tools, then v2's notion_execute, became notion_read + notion_write, and notion_describe is as it was. Modern clients rediscover tools automatically. Details in MIGRATION.md.

Restricting operations

NOTION_ALLOWED_OPERATIONS (allowlist) and NOTION_BLOCKED_OPERATIONS (blocklist) each take a comma-separated list of group presets or exact operation names.

{ "env": { "NOTION_ALLOWED_OPERATIONS": "read" } }                       // read-only, the common case
{ "env": { "NOTION_BLOCKED_OPERATIONS": "destructive" } }                // everything except removals
{ "env": { "NOTION_ALLOWED_OPERATIONS": "read,append_blocks,add_page_comment" } }

Names are case-insensitive, unknown tokens are ignored with a warning, the blocklist wins, and an allowlist that resolves to zero operations disables everything (fail-closed). Disabled operations vanish from the tools' operation enums, from notion_describe and from the notion://operations menu, so naming one fails validation before it runs; when no write operation is enabled, notion_write is not advertised at all. One line on stderr at startup says what resolved. Check it first when the config doesn't behave:

Operation access: 22/48 enabled (allow=read; block=(none))

Confirm instead of block. NOTION_CONFIRM_DESTRUCTIVE=true keeps destructive operations available and makes notion_write ask you before running one, through MCP elicitation: an elicitation/create request on 2025-era clients, an input_required round trip on MCP 2026-07-28 clients, where the retry carries a sealed requestState that only matches the call it was minted for. You get a yes/no dialog naming the operation and its target (the page, database, data source or block title when one retrieve can fetch it within 5 s, otherwise the id; for a batch, how many items).

Restores (restore_page, delete_database / delete_data_source with in_trash: false) and a batch_mixed_blocks call with no delete entry never prompt, and a blocked operation is still rejected with operation_not_allowed before anyone is asked. Decline, cancel or answer no and the call returns confirmation_declined; the server instructions tell the model not to retry and to ask you instead. A client that hasn't declared the elicitation capability gets confirmation_unavailable rather than a silent run. Use a client that supports elicitation, unset the variable, or block destructive operations outright.

Files

Uploads. upload_file takes its bytes as base64, a public url, or a local path the server reads directly. A path source can read any file the server process can, so when a model composes the path, set NOTION_UPLOAD_ROOT to confine it: relative paths resolve inside the root, and symlinks are resolved before the check so they cannot point out of it.

File URLs. Notion mints a fresh signed S3 URL for every hosted file on every read: about 1,650 characters (~500 tokens), valid for an hour, different each time, and easy for a small model to mangle. NOTION_FILE_URLS=ref replaces them in slim responses (get_page, search_pages, query_database, query_view, get_block, get_block_children, …) with short, stable refs.

Both resolvers re-read the object through the Notion API, so a ref stays valid as long as the file does. get_image fetches only the URL Notion returned for a Notion-hosted file, never one supplied by the caller, so it cannot be steered at a LAN host, a cloud metadata endpoint or an exfil target. External URLs (linked images, external files) are short and stable already: they pass through untouched in either mode, and get_image returns them as text rather than fetching them. get_page_markdown is Notion's own rendered markdown and is not rewritten. The default, full, leaves every response as it was.

Remote / HTTP transport

The server speaks stdio by default. Set MCP_TRANSPORT=http to run it as a remote endpoint instead, for web clients, networked agents and shared deployments:

MCP_TRANSPORT=http PORT=3000 NOTION_TOKEN=ntn_xxx npx -y notion-mcp-server
# -> notion-mcp-server vX.Y.Z running on http://127.0.0.1:3000/mcp

It serves MCP Streamable HTTP on /mcp for both current protocol generations, picked per request from what the client sends. MCP 2026-07-28 clients get the stateless path, where every POST stands alone: no session, server/discover, cache hints on every list. 2024-11-05 … 2025-11-25 clients get sessions via the mcp-session-id header plus the GET stream and DELETE, and a GET/DELETE without a session id is answered 405. There is also an unauthenticated GET /health. The process is single-tenant: every request acts as the one NOTION_TOKEN it started with.

⚠️ Whoever reaches /mcp acts as your NOTION_TOKEN. On loopback, the default, that means local processes only. Before binding a non-loopback HOST, set MCP_AUTH_TOKEN (the server warns if you don't) and put an authenticating reverse proxy in front of it.

Connecting from a client that supports headers (Claude Code, Cursor, VS Code), and checking it locally:

claude mcp add --transport http notion https://your-host/mcp \
  --header "Authorization: Bearer <MCP_AUTH_TOKEN>"

curl http://127.0.0.1:3000/health
# -> {"status":"healthy","transport":"http","port":3000}
npx @modelcontextprotocol/inspector --transport http --server-url http://127.0.0.1:3000/mcp

In Docker, HOST=0.0.0.0 is what makes the published port reachable, since inside the container 127.0.0.1 is the container's own loopback. A non-loopback bind is exactly where MCP_AUTH_TOKEN earns its keep:

docker run --rm -e NOTION_TOKEN=ntn_xxx -e MCP_TRANSPORT=http -e HOST=0.0.0.0 -e MCP_AUTH_TOKEN=change-me \
  -p 3000:3000 ghcr.io/awkoy/notion-mcp-server

Claude Desktop builds affected by anthropics/claude-code#93290 send a 2026-07-28 body under a MCP-Protocol-Version: 2025-11-25 header. The server realigns that one known mismatch so those builds work; every other header/body disagreement gets the rejection the spec prescribes (-32020).

services:
  notion-mcp-server:
    image: ghcr.io/awkoy/notion-mcp-server:latest
    environment:
      NOTION_TOKEN: ${NOTION_TOKEN:?NOTION_TOKEN is required}
      MCP_TRANSPORT: http
      HOST: 0.0.0.0
      MCP_AUTH_TOKEN: ${MCP_AUTH_TOKEN:?MCP_AUTH_TOKEN is required}
    ports: ["3000:3000"]
    healthcheck:
      test: ["CMD", "node", "-e", "fetch('http://127.0.0.1:'+(process.env.PORT||3000)+'/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"]
      interval: 30s
      timeout: 3s
      start_period: 5s
      retries: 3

MCP tools

Three tools, whichever of the 47 operations you end up calling. notion_read runs the reads, notion_write the writes, and notion_describe returns one operation's JSON Schema plus a working example, which is worth a round-trip before a complex call: filter expressions, mixed block batches, database property definitions. Each tool's operation field is an enum of exactly what this server has enabled, so the menu ships with the tool list, a client can validate a call before sending it, and a name sent to the wrong tool fails in one round-trip with a message naming the right one.

Every id field (page_id, block_id, database_id, view_id, …) also accepts a Notion URL, so paste what Share → Copy link gives you. A block link's #fragment is used for block_id fields and a database link's ?v= for view_id fields.

// notion_read
{ "operation": "search_pages", "payload": { "query": "Q3 plan" } }
{ "operation": "get_page_markdown", "payload": { "page_id": "https://www.notion.so/Q3-plan-1f3c…" } }

// notion_write, single call
{ "operation": "set_page_title", "payload": { "page_id": "<page-id>", "title": "Q3 plan" } }

// notion_write, batch: every mutating op takes { items: [...], atomic?, concurrency?, idempotency_key? }
{
  "operation": "set_page_title",
  "payload": {
    "items": [{ "page_id": "<p1>", "title": "First" }, { "page_id": "<p2>", "title": "Second" }],
    "concurrency": 3,
    "idempotency_key": "rename-pass-2026-07-02"
  }
}

// markdown shortcut (create_page, append_blocks, update_block, update_page_markdown)
{
  "operation": "create_page",
  "payload": {
    "parent": { "type": "page_id", "page_id": "<parent>" },
    "title": "Notes",
    "markdown": "# Heading\n\n- [ ] todo\n- [x] done\n\n```ts\nconst x = 1;\n```"
  }
}

// a database row: plain property values, typed from the data source's schema
{
  "operation": "create_page",
  "payload": {
    "parent": { "type": "data_source_id", "data_source_id": "<data-source-id>" },
    "title": "Write the report",
    "properties": { "Status": "In Progress", "Due Date": "2026-10-01", "Tags": ["q3", "docs"] }
  }
}

// upload a file and place it on a page in one call
{
  "operation": "upload_file",
  "payload": {
    "source": { "type": "path", "path": "~/Desktop/chart.png" },
    "attach_to": { "block_id": "<page-or-block-id>", "caption": "Q3 revenue" }
  }
}

A payload that doesn't validate comes back with the operation's full JSON Schema, a working example and a fix hint, so the next call can be corrected without a notion_describe round-trip.

Per-tool permissions

MCP clients grant permission by tool name, so the read/write split lets you approve reads once and keep writes behind a prompt. In Claude Code (~/.claude/settings.json or the project's .claude/settings.json, where notion is whatever you named the server):

{
  "permissions": {
    "allow": ["mcp__notion__notion_read", "mcp__notion__notion_describe"]
  }
}

Cursor's MCP settings offer the same per-tool allowlist. notion_read is annotated readOnlyHint: true and notion_write destructiveHint: true, for clients that read annotations.

Operations menu (47 ops, plus one alias)

Reads (get_*, list_*, search_pages, query_database, query_view) go through notion_read, everything else through notion_write.

The authoritative list, with batchability and the tool that runs each op, is served as an MCP resource at notion://operations.

MCP resources

Clients that support resource attachment (@-mention) can pull Notion content into context without a tool call. Dynamic resources route through the same auth, rate limiting and access gating as tool calls.

Troubleshooting

• object_not_found / "Could not find …" — an Internal Integration token only sees pages explicitly Connected to it. Switch to a PAT to skip per-page sharing.
• "Notion auth failed" on every call — token missing, revoked or expired (PATs last a year). Check NOTION_TOKEN in your client config, then that the token is still Active at app.notion.com/developers/tokens. Installed with add-mcp and skipped --env? The entry has no token; re-run with it.
• "No parent page configured" — pass parent in the call, or set NOTION_PAGE_ID.
• multi_source_database from query_database or create_page — the database has several data sources. Call list_data_sources, then pass data_source_id (or a data_source_id parent) instead of database_id.
• A successful result carries warnings — the call ran; each entry names a field that was ignored (misspelt or misplaced) or a property name that was corrected. Fix the payload next time, nothing to retry.
• Tools don't appear in Claude Desktop — token typo (it must stay inside the quotes) or the app wasn't fully quit (Cmd+Q, not window close) before reopening.
• Startup logs "Notion auth check failed" but tools work — the startup check is best-effort; ignore it if calls succeed.
• Docker exits immediately / "Connection closed" — the -i flag is required: docker run --rm -i ….
• Docker: "NOTION_TOKEN is not set" despite -e — write -e NOTION_TOKEN (forwards from the parent env) or -e NOTION_TOKEN=ntn_xxx, not -e NOTION_TOKEN ntn_xxx.

Still stuck? GitHub Issues · FAQ · Notion API reference · MCP spec

Privacy

The server runs on your machine or your own host and talks only to api.notion.com, over HTTPS, with the token you configure. No telemetry, no analytics, no server of ours in the path: nothing you read or write in Notion goes anywhere else. The token stays where your MCP client keeps it, in its config file or in a keychain for clients that have one. With HTTPS_PROXY set, traffic goes through your proxy instead. get_image fetches only the signed URLs Notion returns for files it hosts, never a URL supplied by the model, and upload_file reads a local file only when asked to, inside NOTION_UPLOAD_ROOT when that is set. Notion's own handling of your data is covered by Notion's privacy policy.

Development

git clone https://github.com/awkoy/notion-mcp-server.git
cd notion-mcp-server
npm install
echo "NOTION_TOKEN=ntn_xxx" > .env

npm run build       # tsc -> build/
npm test            # vitest suite
npm run inspector   # MCP inspector against the built binary

Point a client at the local build instead of npx:

claude mcp add notion -s user -e NOTION_TOKEN=ntn_xxx -- node "$(pwd)/build/index.js"

Logs go to stderr and are also sent to the client as MCP notifications/message entries (logger notion-mcp-server), so they show up in the client's own log view — VS Code's output channel, MCP Inspector, Claude Desktop's logs — where stderr is usually hidden. 2025-era clients pick the level with logging/setLevel (default info); MCP 2026-07-28 clients have no such call and ask per request with the io.modelcontextprotocol/logLevel envelope key, so a request without it gets no log notifications. Stderr is unaffected either way. At debug you also get one line per notion_read / notion_write call: operation, batch size, duration, ok or error, never the payload or page content.

npm run build
printf 'NOTION_TOKEN=ntn_...\nNOTION_PAGE_ID=<page the token can write under>\n' > .env   # gitignored
npm run e2e                      # read-only pass
npm run e2e -- --write           # full pass; creates one page under NOTION_PAGE_ID and trashes it at the end
npm run e2e -- --write --keep    # keep the test page for inspection
npm run e2e -- --modern          # any of the above as an MCP 2026-07-28 client (stateless envelope, input_required confirmations)

Contributing

PRs welcome. Fork → branch → commit → push → PR. Run npm test before submitting.

License

MIT — see LICENSE.

mcp-name: io.github.awkoy/notion-mcp-server