Mockupper MCP Server

by damdafayton Your server? Claim it

answering

Mockupper is answering right now. Last checked 2 min ago.

Turn raw screenshots into professional device mockups & app store visuals in seconds with AI.

Uptime history 47 days of history · worst day 95%

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

244 ms

Response time

average over 24h

authentication required

Access

sse

Mockupper missed 3 checks this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mockupper --transport http https://mockupper.damdafa.com/mcp/server/sse

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mockupper": {
      "url": "https://mockupper.damdafa.com/mcp/server/sse"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mockupper]
url = "https://mockupper.damdafa.com/mcp/server/sse"

.cursor/mcp.json

{
  "mcpServers": {
    "mockupper": {
      "url": "https://mockupper.damdafa.com/mcp/server/sse"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mockupper": {
      "url": "https://mockupper.damdafa.com/mcp/server/sse"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.

Endpoints

URL	Transport	State	Latency	Checked
https://mockupper.damdafa.com/mcp/server/sse	sse	needs auth	247 ms	2 min ago

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Mockupper — questions

Answers built from our own checks of this server.

Why is there no tool list for Mockupper?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Mockupper working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 244 ms. The bar chart above shows every period we have measured.

How do I connect Mockupper?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You will need your own credentials: it refuses anonymous clients.

Does Mockupper need an API key?

Yes. Every time we knock, Mockupper answers with an authorization challenge instead of its tool list — that is how we know it is running and gated rather than broken. Bring your own credentials and it will talk.

How fast is Mockupper?

It answers our handshake in 244 ms on average, which is faster than 58% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.