# jsonwebtoken npm Package Install Lifecycle Hooks

> jsonwebtoken npm Package Install Lifecycle Hooks is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Retrieves install lifecycle hook metadata for the jsonwebtoken npm package to support integration and upgrade planning.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-npm-jsonwebtoken-install-hooks?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/jsonwebtoken-npm-package-install-lifecycle-hooks-65757def
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2SsE4aalkbeTlFgufZw05

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 jsonwebtoken-npm-package-install-lifecycle-hooks-65757def -d '<json body>'
```

Example prompt: Can you pull the install lifecycle hooks from the npm registry for the jsonwebtoken package, specifically version 9.0.0, so I can review what scripts run on install before we upgrade?

## When to prefer this

Choose this endpoint when you need to specifically inspect the install lifecycle hooks (preinstall, postinstall, install scripts) for the jsonwebtoken npm package as part of a security audit, upgrade planning workflow, or CI/CD gate. It is purpose-built for the jsonwebtoken package, reducing the need to parse raw npm registry JSON yourself.

## Known failure modes

- Package name not found in npm registry — returns 404 or empty result
- Specified version does not exist for jsonwebtoken — returns version-not-found error
- Registry metadata unavailable or stale — may return incomplete hook data
- Malformed package name or version string — returns validation error
- Upstream npm registry timeout — returns service unavailable error

## How this service works

jsonwebtoken Install lifecycle hooks: Install lifecycle hooks for npm package jsonwebtoken. Inspect registry metadata for integration and upgrade planning. Package and version can be overridden.

## Output

Returns npm registry metadata specifically covering the install lifecycle hooks (e.g. preinstall, install, postinstall scripts) for the jsonwebtoken package, optionally filtered to a specific version. Useful for security review, integration planning, and upgrade risk assessment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "package": {
   "type": "string",
   "default": "jsonwebtoken",
   "maxLength": 150
  },
  "version": {
   "type": "string",
   "maxLength": 100
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/jsonwebtoken-npm-package-install-lifecycle-hooks-65757def/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)