Is io.github.K-Cupples/mockmcp safe to use?

io.github.K-Cupples/mockmcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.K-Cupples/mockmcp?

io.github.K-Cupples/mockmcp can be installed by cloning its GitHub repository and following the setup instructions in the README.

io.github.K-Cupples/mockmcp

Hosted MCP endpoint with realistic fake data for prototyping agents. 12 tools, no setup.

0 tools GitHub

No known CVEs

No license

Maintenance unknown

No commit data

Untested

Transport:

0 tools

Grade F

Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Untested on Claude Desktopstdio · Node 18+

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

{
  "mcpServers": {
    "io-github-k-cupples-mockmcp": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

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Read me

What io.github.K-Cupples/mockmcp does

Hosted MCP endpoint with realistic fake data for prototyping agents. 12 tools, no setup.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

12/100across 5 weighted dimensions

How we score →

0255075100

−88

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Help improve this page

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Frequently Asked Questions

Is io.github.K-Cupples/mockmcp safe to use?: io.github.K-Cupples/mockmcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.K-Cupples/mockmcp?: io.github.K-Cupples/mockmcp can be installed by cloning its GitHub repository and following the setup instructions in the README.

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Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Untested on Claude Desktopstdio · Node 18+

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

{
  "mcpServers": {
    "io-github-k-cupples-mockmcp": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-k-cupples-mockmcp)](https://mcppedia.org/s/io-github-k-cupples-mockmcp)

Read me

What io.github.K-Cupples/mockmcp does

Hosted MCP endpoint with realistic fake data for prototyping agents. 12 tools, no setup.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

MockMCP

Hosted MCP endpoint returning realistic fake data for prototyping agents. Paste one URL, zero setup.

Live at mockmcp.io — https://mockmcp.io/mcp

Built for devs who want to prototype agent workflows without wiring up a backend, writing fixtures, or standing up a local MCP server. 12 pre-built tools covering the scenarios in most agent tutorials.

Try it

# Initialize a session and get back a session id
curl -i -X POST https://mockmcp.io/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"curl","version":"0.1"}}}'

# Use the Mcp-Session-Id header in subsequent calls:
curl -X POST https://mockmcp.io/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Mcp-Session-Id: <paste-id-here>" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"list_users","arguments":{"limit":3}}}'

Connect your client

Claude Code

claude mcp add --transport http mockmcp https://mockmcp.io/mcp

Cursor — add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "mockmcp": {
      "url": "https://mockmcp.io/mcp"
    }
  }
}

Claude Desktop — Settings → Connectors → Add custom connector → paste https://mockmcp.io/mcp as the URL.

No mcp-remote proxy required. All three clients speak Streamable HTTP natively.

Tools

Tool	What it does
`list_users`	Paginated list of mock users
`get_user`	One mock user by id or seed
`create_user`	Create a mock user (no persistence)
`list_products`	Paginated list of mock products
`get_product`	One mock product
`list_orders`	Mock orders with optional status filter
`get_order`	One mock order
`create_order`	Create a mock order (no persistence)
`list_events`	Mock analytics events
`create_event`	Record a mock event
`send_email`	Returns fake success, nothing delivered
`search_knowledge_base`	Mock KB search with ranked results

All data is seeded from your inputs — same input, same output.

Limits

Free tier, per hashed IP + User-Agent fingerprint:

30 requests per minute
500 requests per day

Hit the wall? Drop your email at mockmcp.io/waitlist for paid-tier access when it launches.

429 responses carry a structured JSON-RPC error with upgrade_url and retry_after_seconds. Every successful response carries X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, and X-RateLimit-Scope headers.

Run locally

npm install
npm run dev

Server listens on http://localhost:3000. MCP endpoint at /mcp. Without Upstash env vars, rate limiting falls back to an in-memory store (per-process, fine for dev).

Stack

@modelcontextprotocol/sdk — MCP server + Streamable HTTP transport
Raw Node http — no framework overhead, clean shutdown
@faker-js/faker — deterministic fake data via seeds
@upstash/ratelimit + @upstash/redis — sliding-window rate limiting
zod — tool input validation

Deploy (for forks)

Targets Node 20+. Build + start are pinned via nixpacks.toml; health checks + restart policy via railway.json.

Fork this repo, push to GitHub.
Railway → New Project → Deploy from GitHub → pick your fork.
Add env vars in Railway → Variables:

Var	Notes
`UPSTASH_REDIS_REST_URL`	From upstash.com free tier
`UPSTASH_REDIS_REST_TOKEN`	Paired with the URL above
`PORT`	Railway sets this automatically

Railway service → Settings → Networking → Custom Domain → paste your domain → follow the DNS instructions.

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

12/100across 5 weighted dimensions

How we score →

0255075100

−88

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Help improve this page

This server is missing a description. Tools and install config are also missing.If you've used it, help the community.

Add information

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.K-Cupples/mockmcp safe to use?: io.github.K-Cupples/mockmcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.K-Cupples/mockmcp?: io.github.K-Cupples/mockmcp can be installed by cloning its GitHub repository and following the setup instructions in the README.