getsnap-mcp
Official MCP server for
getSnap.dev. Gives Claude and other agents the
ability to capture a web page, compare two pages and audit one for
accessibility.
The capture tools return the image itself, not a link to it. A model
can look at the page it just asked for, so "screenshot this and tell me
what's broken" works in a single turn.
Install
No install step. Your client runs it with npx.
Get a free API key at getsnap.dev — 100 captures
a month, no card.
Claude Code
claude mcp add getsnap --env GETSNAP_API_KEY=sk_live_... -- npx -y getsnap-mcp
Claude Desktop
claude_desktop_config.json:
{
"mcpServers": {
"getsnap": {
"command": "npx",
"args": ["-y", "getsnap-mcp"],
"env": { "GETSNAP_API_KEY": "sk_live_..." }
}
}
}
The same block works in any client that speaks MCP over stdio.
Tools
| Tool | Credits | Returns |
|---|
capture_screenshot | 1 | The image, inline |
capture_pdf | 1 | A link — a PDF can't be shown to a model |
compare_pages | 2 | Similarity score + the diff overlay, inline |
audit_accessibility | 1 | WCAG violations by severity |
check_usage | 0 | Credits used and remaining |
Cookie banners and ad overlays are removed by default on captures.
Cached responses cost nothing and say so.
Things worth knowing
Large images are not inlined. Past about 1.5 MB the capture still
happened and is still on the CDN, so the tool returns the link and says
why. A full_page capture of a long page will usually hit this — pass
format: "jpeg" or full_page: false to get it inline instead.
Every capture spends a credit, so each tool description states its
cost. An agent deciding whether to call something should be able to see
what it will cost before it does.
compare_pages costs 2, because it launches a browser per URL.
Configuration
| Variable | Required | Default |
|---|
GETSNAP_API_KEY | yes | — |
GETSNAP_BASE_URL | no | https://api.getsnap.dev |
Without a key the server exits immediately with a message explaining
where to get one, rather than starting and failing on first use.
Examples
Once connected, ask your agent in plain language:
- "Screenshot stripe.com on mobile and tell me if anything overlaps."
- "Compare our staging site against production and show me what moved."
- "Audit example.com for accessibility and list the critical failures."
- "How many getSnap credits do I have left?"
Links
Versioning
This package versions independently of the getSnap REST API and the
Node and Python SDKs. It shared their number until 1.14.3, when it
moved out of the API monorepo into this repository; from here it moves
on its own schedule.
MIT licensed. Issues to [email protected].
