Notion Clipper

Clip any web page to Notion. Uses Chrome CDP for full JavaScript rendering, converts to Markdown, then to Notion blocks.

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Prerequisites

• Notion API Key: Create an integration at https://notion.so/my-integrations

• Store the key:

mkdir -p ~/.config/notion echo "ntn_your_key_here" > ~/.config/notion/api_key

• Share target database/page with your integration (click "..." → "Connect to" → your integration name)

First Time Setup

Dependencies are auto-installed when the script runs. No manual setup needed.

Agent Execution Instructions

CRITICAL: Always use the command pattern below. It auto-installs dependencies on first run.

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• Determine this SKILL.md file's directory path as SKILL_DIR

• Command pattern (package.json in scripts/ ; always run lazy install first):

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts <args>)

• Replace ${SKILL_DIR} with the actual path (e.g. /Users/xxx/.claude/skills/notion-clipper-skill )

Usage

IMPORTANT - Use this command pattern for best results:

Recommended: Clear proxy env vars and use tsx runtime

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts <url> --database-name "Resources")

Why this pattern?

• unset http_proxy https_proxy all_proxy

• Avoids ECONNREFUSED from proxy conflicts

• tsx runtime - Node.js runtime that properly handles direct connections (bun has proxy issues)

• (test -d node_modules || npm install)

• Auto-installs dependencies if missing

If you encounter network issues:

• Close any VPN/proxy software

• Switch to a stable network (mobile hotspot often works)

• Use the recommended command pattern above

Clip to a Notion database by NAME (recommended - searches for database)

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts <url> --database-name "Resource")

Clip to a Notion database by ID

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts <url> --database <database_id>)

Clip to an existing page (appends blocks)

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts <url> --page <page_id>)

List all accessible databases

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts --list-databases)

For pages requiring login (wait mode)

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && npx -y tsx main.ts <url> --database-name "Resource" --wait)

Options

Option Description

<url>

URL to clip

--database-name, -n <name>

Target database by name (searches for match)

--database, -d <id>

Target Notion database by ID

--page, -p <id>

Target Notion page ID (appends blocks)

--list-databases, -l

List all accessible databases and exit

--wait, -w

Wait for user signal before capturing

--timeout, -t <ms>

Page load timeout (default: 30000)

--no-bookmark

Don't include bookmark block at top

Capture Modes

Mode Behavior Use When

Auto (default) Capture on network idle Public pages, static content

Wait (--wait ) User signals when ready Login-required, lazy loading, paywalls

Wait mode workflow:

• Run with --wait → Chrome opens, script outputs "Press Enter when ready"

• Log in or navigate as needed in the browser

• Press Enter in terminal to trigger capture

Output Structure

When saving to a database, creates a new page with:

• Name: Page title

• URL: Source URL (if database has URL property)

• Content: Bookmark block + converted content blocks

When appending to a page, adds:

• Bookmark block (link to source)

• Divider

• Converted content blocks

Database Setup

For best results, create a Notion database with these properties:

• Name (Title) - Required, will contain page title

• URL (URL) - Optional, will contain source URL

Examples

Clip a tweet to "Resource" database (by name):

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts "https://x.com/dotey/status/123456" -n "Resource")

List all databases first:

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts --list-databases)

Clip article requiring login:

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts "https://medium.com/article" -n "Reading" --wait)

Append to reading notes page:

(cd "${SKILL_DIR}/scripts" && (test -d node_modules || npm install) && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts "https://blog.example.com/post" -p xyz789)

Quick alias (add to your ~/.bashrc or ~/.zshrc):

alias notion-clip='(cd "${SKILL_DIR}/scripts" && unset http_proxy https_proxy all_proxy && npx -y tsx main.ts)'

Usage: notion-clip <url> -n "Resources"

How It Works

• Fetch: Launch Chrome via CDP, navigate to URL

• Render: Wait for JavaScript to execute, scroll to trigger lazy loading

• Extract: Run cleanup script to remove ads/nav, extract main content

• Convert: HTML → Markdown → Notion blocks

• Save: Call Notion API to create page or append blocks

Dependencies

• Chrome/Chromium browser (installed locally)

• Node.js (script runs with tsx ; Bun may route through proxy and return empty body, use Node)

• Notion API key configured

(Other dependencies auto-install on first run.)

Environment Variables

Variable Description

NOTION_CLIPPER_CHROME_PATH

Custom Chrome executable path

NOTION_CLIPPER_CHROME_PROFILE_DIR

Custom Chrome profile directory

https_proxy / HTTP_PROXY

Proxy for Notion API (e.g. http://127.0.0.1:7890 )

http_proxy / HTTPS_PROXY

Same as above

all_proxy

Optional, e.g. socks5://127.0.0.1:7890

Example (proxy on port 7890):

export https_proxy=http://127.0.0.1:7890 http_proxy=http://127.0.0.1:7890 all_proxy=socks5://127.0.0.1:7890

Troubleshooting

Network Issues

Error Cause Solution

ECONNREFUSED 208.103.161.1:443

DNS returns blocked IP; proxy conflict

1. Close VPN/proxy software2. Use unset http_proxy https_proxy all_proxy
2. Switch network (e.g., mobile hotspot)

Notion API returned empty body (status 200)

Using bun which routes through proxy incorrectly Run with tsx: npx -y tsx main.ts ... (NOT bun )

fetch failed or ECONNREFUSED

Proxy env vars set but Node.js https doesn't support them Either:1. Use network without proxy (unset env vars)2. Ensure proxy allows HTTPS traffic

CloudFlare 403

Direct IP access triggers security protection Use hostname instead of IP; ensure proper Authorization header

Mixed: Sometimes works, sometimes fails Unstable network or DNS returns different IPs Script now has 6 retries with exponential backoff (1s, 2s, 4s, 4s...)

Best Practice: For reliable Notion API access, use a stable network (mobile hotspot often works better than corporate VPN).

Content Issues

Error Cause Solution

Invalid URL for link

Notion API rejects non-http(s) URLs Script now removes all markdown links by default to avoid validation errors. Content is preserved, only links are stripped.

Note: The script automatically removes these invalid URL types:

• javascript: , data: , file: , about: protocols

• WeChat internal links (weixin: , wx:// )

• Relative paths (/path , ./path )

• Hash-only links (#anchor )

• Empty links

General Issues

• Chrome not found: Set NOTION_CLIPPER_CHROME_PATH environment variable

• Timeout errors: Increase --timeout value or use --wait mode

• Content missing: Try --wait mode for dynamic/lazy-loaded pages

• Notion API error (401/403): Check API key validity and integration permissions

• Notion API error: Ensure integration has access to target database/page

Code Optimizations Applied

The following optimizations have been implemented to handle unstable networks and invalid URLs:

• Auto-retry mechanism: Up to 6 retries with exponential backoff (1s → 2s → 4s → 4s...)

• Increased timeout: 30s for Notion API requests (was 25s)

• URL cleaning: Removes invalid URLs before Notion API submission

• Using tsx: Node.js runtime that properly handles direct connections (unlike Bun)