---
title: "Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals."
method: POST
path: "/v1/npm-package-intel"
tags: ["npm", "package", "dependency", "check", "install", "installing", "security", "vulnerability", "vulnerabilities", "vulnerable", "license", "maintenance", "health", "deprecated", "deprecation", "freshness", "intelligence", "modifying", "json"]
---

# Check whether an npm package is deprecated or vulnerable before installing it, including vulnerabilities, license, maintenance, freshness, dependency health, and package.json risk signals.

`POST /v1/npm-package-intel`

## Request

- Base URL: `https://api.salt19.com`
- URL: `https://api.salt19.com/v1/npm-package-intel`
- Auth: none required

npm dependency intelligence for coding agents. Resolve a package and version, inspect license, release freshness, deprecation, maintenance signals, and OSV vulnerability evidence before install, upgrade, dependency selection, package.json modification, or supply-chain review.

## Headers

- `Idempotency-Key` string

## Request body

- object
  - `package` string, required
  - `version` string

## Response `200`

Successful paid result

## Other responses

- `402`: x402 payment required

---

[API](https://skmtc.dev/salt19/apis/salt19-agent-utility-grid.md) · [All operations](https://skmtc.dev/salt19/apis/salt19-agent-utility-grid/llms.txt) · [OpenAPI document](https://skmtc.dev/salt19/apis/salt19-agent-utility-grid/revisions/c2520ca8ffbf?raw)