Latchshot for Claude Code

Give Claude Code two bounded tools for public-page artifacts without installing a browser locally:

• capture_page returns a PNG, JPEG, or PDF plus render diagnostics.
• get_usage reads the current plan and successful-render allowance without consuming quota.

The plugin contains no executable code. It connects Claude Code directly to Latchshot's hosted MCP Streamable HTTP endpoint and reads the API key from the LATCHSHOT_API_KEY environment variable when Claude Code starts.

Requirements

• Claude Code 2.1.154 or newer for explicit opt-in plugin enablement.
• A recurring Free-plan Latchshot key. The Free plan includes 100 successful renders per UTC calendar month and requires no credit card.

Install from this repository

Export the key in the shell that launches Claude Code, add this repository as a marketplace, install the plugin, then enable it:

export LATCHSHOT_API_KEY='ls_live_replace_me'
claude plugin marketplace add BaiqingL/latchshot-claude-code
claude plugin install latchshot@latchshot
claude plugin enable latchshot@latchshot

Restart Claude Code from the same environment or run /reload-plugins, then inspect /mcp. The server should expose capture_page and get_usage under the plugin-scoped Latchshot server name. Keep the key in a shell secret manager or protected environment configuration; do not commit it to the repository or a project .mcp.json file.

The plugin is not yet represented as accepted by Anthropic's community marketplace. If it is approved later, the repository will document the exact community install command.

Example

Ask Claude:

Use Latchshot to capture https://example.com as an 800 by 450 PNG. Report the byte count, render time, navigation state, fonts state, scripts state, and remaining quota.

A controlled integration check should use a disposable key and one public, non-sensitive URL. Artifact size and render time vary by page.

Boundaries

• Public HTTP and HTTPS targets on ports 80 and 443 only.
• Private, loopback, link-local, metadata, credential-bearing, mixed public/private DNS, and non-web-port targets are rejected.
• No cookies, sessions, arbitrary scripts, CAPTCHA solving, proxy rotation, or anti-bot bypass.
• The plugin exposes no payment or plan-upgrade tool. Failed direct captures do not consume quota, and automatic overages are disabled.
• Target pages can observe a browser visit from Latchshot infrastructure. Capture only pages you are authorized to use.

Validate

npm test
npx --yes @anthropic-ai/claude-code@2.1.215 \
  plugin validate ./plugins/latchshot --strict
npx --yes @anthropic-ai/claude-code@2.1.215 \
  plugin validate . --strict

The repository is MIT licensed. The hosted Latchshot service remains a separate proprietary, quota-metered product.