About getsnap
getsnap is an MCP server for Claude and other agents to capture web pages, compare page versions and audit accessibility. It returns screenshots and visual diffs inline, so agents can inspect rendered pages directly.
Key features
- 01Capture webpage screenshots inline
- 02Generate PDFs from pages
- 03Compare pages with a diff overlay
- 04Audit WCAG accessibility violations
- 05Check remaining API credits
- 06Remove cookie banners and ad overlays by default
Use cases
- 01Inspect a mobile page for overlapping elements
- 02Compare staging and production page layouts
- 03Find accessibility failures on a website
- 04Check remaining capture credits
MCP support
getsnap exposes screenshot, PDF, page comparison, accessibility audit and usage tools to MCP clients. It runs through `npx` and requires a getSnap API key.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
npx -y getsnap-mcpGETSNAP_API_KEYSecretgetSnap.dev API key. Free tier is 100 captures a month at https://getsnap.devLocal servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.
Tools
5Saved tool list · updated 4d ago
| Parameter | Type | Required | Description |
|---|---|---|---|
| url | string | Yes | The page to capture |
| delay | integer | No | Extra wait in ms after load, for late content |
| device | enum | No | desktop | mobile | tablet |
| format | enum | No | jpeg is markedly smaller and usually enough to read a layoutpng | jpeg | webp |
| full_page | boolean | No | Capture the whole scrollable page, not just the viewport |
| return_image | boolean | No | false returns only the CDN URL, which keeps a large capture out of the context window |
| viewport_width | integer | No | |
| viewport_height | integer | No |
Details
From the project READMEgetsnap-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].
Comments
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