# uuid npm Package Artifact Integrity Metadata

> uuid npm Package Artifact Integrity Metadata is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns published artifact integrity metadata (checksums, signatures, tarball hashes) for the npm package 'uuid', with optional version override.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/signal-npm-uuid-artifact-integrity?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uuid-npm-package-artifact-integrity-metadata-1bed4863
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FfXyEINRe0Sv7IoHepaVy

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 uuid-npm-package-artifact-integrity-metadata-1bed4863 -d '<json body>'
```

Example prompt: Can you pull the published artifact integrity metadata for the uuid npm package, version 9.0.0? I need the checksums and tarball hashes for supply chain verification.

## When to prefer this

Use this endpoint when you need quick, paid-API access to npm artifact integrity metadata for the uuid package specifically, without setting up your own npm registry client. Ideal for CI/CD pipelines, supply chain auditing agents, or upgrade planning tools that need checksums and tarball hashes on demand. Choose this over direct npm registry calls when operating in an agentic x402 payment context or when you want a consistent abstraction layer with override support for package and version.

## Known failure modes

- Unknown or misspelled package name returns an error or empty result
- Requested version does not exist in the npm registry — returns not found error
- Network or upstream npm registry unavailability causes timeout
- Malformed version string may result in a validation error

## How this service works

uuid Published artifact integrity metadata: Published artifact integrity metadata for npm package uuid. Inspect registry metadata for integration and upgrade planning. Package and version can be overridden.

## Output

Returns published artifact integrity metadata from the npm registry for the uuid package, including fields such as tarball URL, integrity hash (shasum/sha512), file size, and registry-level signature data. The response supports integration verification and upgrade planning workflows.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uuid-npm-package-artifact-integrity-metadata-1bed4863/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)