mcp-mock

mcp-mock is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from vibeglitch/mcp_mock. Its token cost is not measured, scanned A, a copy of kokoro, MIT.

A local mock server and test suite for MCP, the standard that lets AI agents use external tools and services. It runs from the mcp-mock Python package.

In plain words
What is it for?
Use it to create synthetic MCP responses and test how an agent or MCP client handles tool calls and server behavior.
Why use it?
It provides a local environment for testing MCP integrations without relying on a live external service.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it.

Good fit Use it to create synthetic MCP responses and test how an agent or MCP client handles tool calls and server behavior.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/vibeglitch/mcp_mock/mcp-mock
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/vibeglitch/mcp_mock

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mcp-mock

README.md
[![agentmods](https://agentmods.dev/badge/mcp/vibeglitch/mcp_mock/mcp-mock/github.svg)](https://agentmods.dev/mcp/vibeglitch/mcp_mock/mcp-mock)
Your own site
<a href="https://agentmods.dev/mcp/vibeglitch/mcp_mock/mcp-mock"><img src="https://agentmods.dev/badge/mcp/vibeglitch/mcp_mock/mcp-mock/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for mcp-mock

Your own site · 80×15
<a href="https://agentmods.dev/mcp/vibeglitch/mcp_mock/mcp-mock"><img src="https://agentmods.dev/badge/mcp/vibeglitch/mcp_mock/mcp-mock.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

mcp-mock scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

86% identical to kokoro — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

listed in the official MCP registry · 8 lines

What it actually says

{ "mcp-mock": { "command": "uvx", "args": [ "mcp-mock" ] } }

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 8 lines scan A d18f0d1f5f4e

Subscribe to this mod's changes

mcp-mock is an MCP server published in the GitHub repository vibeglitch/mcp_mock (1 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 86% identical to kokoro, differing in 4 lines, and is treated as a copy.