Simceptor MCP Server

by ayda212 Your server? Claim it

answering

Simceptor is answering right now. Last checked 8 min ago.

AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.

Uptime history 47 days of history · worst day 97%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

874 ms

Response time

average over 24h

API key

Access

streamable-http

Simceptor does not always answer

Over the last week it answered 98.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not 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 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add simceptor --transport http https://simceptor.com/api/mcp/sse

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

{
  "mcpServers": {
    "simceptor": {
      "url": "https://simceptor.com/api/mcp/sse"
    }
  }
}

~/.codex/config.toml

[mcp_servers.simceptor]
url = "https://simceptor.com/api/mcp/sse"

.cursor/mcp.json

{
  "mcpServers": {
    "simceptor": {
      "url": "https://simceptor.com/api/mcp/sse"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "simceptor": {
      "url": "https://simceptor.com/api/mcp/sse"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, but you need an API key from its owner to call it.

Endpoints

URL	Transport	State	Latency	Checked
https://simceptor.com/api/mcp/sse	streamable-http	needs key	837 ms	8 min ago

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Simceptor — questions

Answers built from our own checks of this server.

Why is there no tool list for Simceptor?

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 Simceptor working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 874 ms. The bar chart above shows every period we have measured.

How do I connect Simceptor?

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 key: it refuses anonymous clients.

Does Simceptor need an API key?

Yes. Every time we knock, Simceptor 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 Simceptor?

It answers our handshake in 874 ms on average, which is faster than 12% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.