next-devtools-mcp (vercel/next-devtools-mcp) is an MCP server listed on the M8ven Trust Index. It scores 75 out of 100, grade B. It declares 4 tools. No publisher has claimed this listing.

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B
Caution
75/100
10 days ago

next-devtools-mcp

Next.js Development for Coding Agent

→ vercel/next-devtools-mcp· npm: next-devtools-mcp· listed on npm

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

vercel

Source: npm · also listed on Glama, github_topic

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// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 6 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// known CVEs in dependencies1 critical6 high11 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@3.2.4GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

highundici@7.18.2GHSA-4cwx-7wf7-3272

undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives

highundici@7.18.2GHSA-f269-vfmq-vjvj

Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client

highundici@7.18.2GHSA-v9p9-hfj2-hcw8

Undici has Unhandled Exception in WebSocket Client Due to Invalid server_max_window_bits Validation

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configNEXT_DEVTOOLS_HOST
// quality suggestions

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Production dependencies are patched

0 critical, 6 high severity in production deps — @modelcontextprotocol/sdk@1.25.2 (high), undici@7.18.2 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

1 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/vercel/next-devtools-mcp?variant=verified)](https://m8ven.ai/mcp/vercel/next-devtools-mcp)
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commit: fd4524da66454d416181eca0f29cac71cc5ec082
code hash: 7936f85c55f18e92350ac4dc7f05e7da0c4a23dd47f72d01c060cd515ed4cca4
verified: 8/31/2026, 8:32:40 PM
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