Speclock MCP Server

by sgroy10 Your server? Claim it

local only

Speclock runs on your own machine — the client starts it, so there is no endpoint to ping. 165 installs a week from npm. Last commit 18 Aug 2026.

AI Constraint Engine — enforces CLAUDE.md and .cursorrules as laws. 51 MCP tools.

Installs per day peak 96 · avg 26 · +1% w/w

a month agotoday

165

Installs / week

npm · speclock

Stars

0 open issues

18 Aug 2026

Last commit

2 releases in 90 days

MIT

License

JavaScript

What the code does

We read the source, 1 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable src/core/conflict.js:555, src/core/coverage.js:214, src/core/engine.js:352 и ещё 7

    const fullPath = path.join(root, file);

Page executes code built at runtime src/dashboard/index.html:271, [пакет] src/dashboard/index.html:271

    locksBody.innerHTML = activeLocks.map(l => `

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add speclock -- npx -y speclock

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

{
  "mcpServers": {
    "speclock": {
      "command": "npx",
      "args": [
        "-y",
        "speclock"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.speclock]
command = "npx"
args = ["-y", "speclock"]

.cursor/mcp.json

{
  "mcpServers": {
    "speclock": {
      "command": "npx",
      "args": [
        "-y",
        "speclock"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "speclock": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "speclock"
      ]
    }
  }
}

Alternatives to Speclock

same job, measured the same way

Weatherai

by weatherai-io

WeatherAI — 11 live weather tools for Claude, Cursor, Windsurf and any MCP AI assistant

39 installs/wk local only

Llmkit

by smigolsmigol

AI cost tracking: 11 tools for spend, budgets, and Claude Code + Cursor + Cline costs

76 installs/wk local only

RuleStack MCP

by thecompound

RuleStack: Search real AGENTS.md, CLAUDE.md and Cursor rules files.

local only

Agent Magnet

by helinakdogan

Behavioral memory layer for AI tools. Learns preferences and context across Claude, Cursor, Codex.

683 installs/wk local only

Ads Editor: Meta Ads and Google Ads

by com-adseditor

Meta Ads and Google Ads MCP server: 250+ tools for Claude, ChatGPT, Cursor and Codex.

answering

Context Engine

by relote-com

One memory for your AI agents and your team: Claude, ChatGPT, Cursor and your agents share it.

answering

Openclaw Skill Vetter MCP

by temurkhan13

Vet third-party AI agent extensions + agent-config files (AGENTS.md, .cursor/rules, CLAUDE.md).

114 installs/wk local only

Smartguard MCP

by kota1026

SmartGuard MCP Server - AI-powered smart contract security audit tools for Claude Code, Cursor,...

45 installs/wk local only

Speclock — questions

Answers built from our own checks of this server.

Why is there no uptime for Speclock?

Speclock runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package speclock was installed 165 times last week.

How do I connect Speclock?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls speclock straight from npm; nothing to host, nothing to sign up for.

How many people use Speclock?

The npm package speclock was installed 165 times in the last week. Week over week that is +1%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Speclock open source?

Yes — it is published under the MIT licence, written in JavaScript and 26 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.