npm · npm:levn

levn active

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

The latest stable version of levn is 0.4.1, published on 2020-04-04. Verified by Vigia on 2026-11-12.

Latest stable version	0.4.1
Published	2020-04-04 02:05:31 UTC
Install	`npm install levn@latest`
Requires (engines)	`{"node":">= 0.8.0"}`
Peer dependencies	—
Dist-tags	`latest: 0.4.1`
License	MIT
Advisories on latest version	none known
Last verified	2026-11-12 13:44:54 UTC
Sources	api.deps.dev, registry.npmjs.org, registry.npmjs.org

Is your project affected?

Check my whole package.json Get notified of new versions (Atom)Facts for my AGENTS.md

Free, no signup. Paste your manifest and see what is outdated, deprecated or vulnerable.

Maintenance

Activity	dormant
Last stable release	2020-04-04 02:05:31 UTC · 2414 days ago
Stable releases in the last 12 months	0
Published versions	10

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`0.4.1`	2020-04-04 02:05:31 UTC
`0.4.0`	2020-04-04 01:39:37 UTC
`0.3.0`	2015-12-29 05:57:03 UTC
`0.2.5`	2014-04-29 05:16:08 UTC
`0.2.4`	2014-04-08 06:17:16 UTC
`0.2.3`	2014-03-20 23:59:27 UTC
`0.2.2`	2014-03-20 00:28:20 UTC
`0.2.1`	2013-12-17 23:20:46 UTC
`0.2.0`	2013-10-29 23:20:26 UTC
`0.1.0`	2013-10-04 20:10:35 UTC

Showing the 10 most recent of 10 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`node 16`	`0.4.1`
`node 18`	`0.4.1`
`node 20`	`0.4.1`
`node 22`	`0.4.1`
`node 24`	`0.4.1`

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to Cursor Add to VS Code ★ Star on GitHub

Any other MCP client

{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

Frequently asked questions

What is the latest version of levn?

The latest stable version of levn is 0.4.1, published on 2020-04-04. Verified by Vigia on 2026-11-12.

How do I install the latest version of levn?

Run npm install levn@latest. The latest stable version is 0.4.1 (verified 2026-11-12).

Is levn deprecated?

No. levn is not marked as deprecated in the registry.

Which Node.js version does levn require?

levn 0.4.1 declares this requirement: {"node":">= 0.8.0"}.

Does levn 0.4.1 have known vulnerabilities?

No known advisories affect levn 0.4.1 according to the data Vigia checks.

Is levn still maintained?

levn published 0 stable releases in the last 12 months; the most recent was 2414 days ago. Activity: dormant.

Observed changes

No changes observed yet since Vigia started tracking this package.

Related packages

Badges for your README

Show the latest version, maintenance status and deprecation status of this package. Copy the Markdown:

[![version](https://vigia.coredls.cloud/badge/npm/levn/version.svg)](https://vigia.coredls.cloud/npm/levn)
[![maintained](https://vigia.coredls.cloud/badge/npm/levn/maintained.svg)](https://vigia.coredls.cloud/npm/levn)
[![status](https://vigia.coredls.cloud/badge/npm/levn/status.svg)](https://vigia.coredls.cloud/npm/levn)

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/levn
GET https://vigia.coredls.cloud/v1/packages/npm/levn/versions/{version}