An MCP server for Nx, a tool for managing JavaScript and TypeScript workspaces. It lets an agent inspect the project graph, find code generators, and run tasks in an Nx monorepo, which is one repository containing multiple related projects.

Use it to understand an Nx workspace, look up generators, and run its configured tasks through a local server.

It gives the agent a structured view of project relationships and available workspace tasks instead of requiring it to discover them manually.

nx-mcp — MCP server for Cursor by TanStack

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/TanStack/devtools

Made for: Cursor.

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.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/tanstack/devtools/nx-mcp.svg)](https://agentmods.dev/mcp/tanstack/devtools/nx-mcp)

Your own site

<a href="https://agentmods.dev/mcp/tanstack/devtools/nx-mcp"><img src="https://agentmods.dev/badge/mcp/tanstack/devtools/nx-mcp.svg" alt="Measured on agentmods" 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 original No closer match found in the catalogue.

Security

Grade A, and why

nx-mcp 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 yesterday.

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.

.cursor/mcp.json · 5 lines

What it actually says

{
  "nx-mcp": {
    "url": "http://localhost:9160/sse"
  }
}

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.

yesterday First seen · 5 lines scan A eb95abdfd47a

Subscribe to this mod's changes

nx-mcp is an MCP server published in the GitHub repository TanStack/devtools (496 stars, last pushed today), 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-06.

Building agents Project management React devtool devtools solidjs

nx-mcp

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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