# Express npm Package Metadata and Health

> Express npm Package Metadata and Health is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Returns live npm registry metadata and health information for the Express npm package (or any overridden package name).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-next-package-npm-express-project-health?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/express-npm-package-metadata-and-health-5b9f31d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_12b-cP5uR3D_8VYV0skl2

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability express-npm-package-metadata-and-health-5b9f31d7 -d '<json body>'
```

Example prompt: Can you pull the live npm registry metadata and health info for the express package and tell me the current version, download trends, and whether it's actively maintained?

## When to prefer this

Use this endpoint when you need up-to-date npm registry metadata and health signals for Express or another Node.js package, especially when you want a fast, paid-for snapshot without setting up your own npm registry polling or scraping logic.

## Known failure modes

- Package name not found on npm registry — returns 404 or error response
- Invalid package name format causes validation error
- npm registry is temporarily unavailable causing timeout or 5xx error
- Payment not processed — x402 payment required error

## How this service works

Express Package metadata and health: Live npm Registry package metadata and health for Express. Package name can be overridden.

## Output

Returns live npm registry metadata for the specified package (defaulting to 'express'), including version information, download statistics, maintenance signals, and package health indicators sourced directly from the npm registry.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "package": {
   "type": "string",
   "default": "express",
   "description": "Package name to inspect."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/express-npm-package-metadata-and-health-5b9f31d7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)