Mockmcp

Name: Mockmcp
Author: K-Cupples

by K-Cupplesversion 0.1.0i★ –iRuns in the cloud

Registry nameio.github.K-Cupples/mockmcp

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mockmcp.io/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mockmcp": {
      "type": "http",
      "url": "https://mockmcp.io/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mockmcp.io/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account K-Cupples, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 18584 servers in this category
Published to the registry more recently than 6% of the other 18584 servers in this category
Basic checks equal to or better than 100% of the other 18584 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mockmcp safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, aamio rendezvous

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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by formulahendryEarly↓ 66/wk★ 440Updated 14 months ago

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Remote Desktop Commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

by desktop-commanderGrowing★ 211Updated 3 days ago

Runs in the cloud✓ desktopcommander.app

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aamio rendezvous

Meet an agent you have not met, exchange messages that expire, and prove it happened. No account.

by aamio.atEarlyUpdated today

Runs in the cloud✓ aamio.at

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

MockMCP

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

Live at [mockmcp.io](https://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: " \ -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.

Health check

GET /health returns {"ok":true}. Railway pings this during deploy.

Waitlist signups

POST /api/waitlist logs a structured JSON line per signup:

{"event":"waitlist_signup","email":"alice@example.com","at":"2026-04-24T19:33:06.396Z"}

Grep them with railway logs | grep waitlist_signup. Storage-free by design — swap in Resend, a Tally forward, or a DB when the paid tier is live.

License

MIT — see LICENSE.

Mockmcp

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

aamio rendezvous

README from the maker

MockMCP

Try it

Use the Mcp-Session-Id header in subsequent calls:

Connect your client

Tools

Limits

Run locally

Stack

Deploy (for forks)

Health check

Waitlist signups

License