# vlt

**Canonical:** https://apis.io/providers/vlt/  
**Website:** https://www.vlt.io/  
**APIs profiled:** 1

vlt (pronounced "volt") is a JavaScript package management company started by the creator of npm and former members of the npm core team, and backed by Accel. It ships the open source vlt package manager CLI, the npm-compatible vlt serverless registry (vsr) that runs on Cloudflare's edge network, and a hosted registry platform at vlt.io with user, token, and access management exposed through an npm-compatible registry API at registry.vlt.io.

## Kin Score — 44.1 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 44.1).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 84.2 |
| Access Clarity | 84.2 |

## Agent readiness — 8.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (1)

- **vlt Serverless Registry (vsr) API** — npm-compatible package registry API implemented by vsr, vlt's serverless registry. Exposes package publish/install endpoints (packuments, tarballs, dist-tags), user and token ma...

## Security (3)

- **Vlt Authentication** — http-bearer/oidc-exchange · 4 schemes
- **Vlt Domain Security** — TLSv1.3 · HSTS
- **Vlt Vulnerability Disclosure** — disclosure policy published

## Plans (1)

- **Vlt Plans**

## Tags

Company, JavaScript, Package Management, Package Registry, Developer Tools, CLI, Serverless, npm, Dependency Management, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/vlt/). Scores are computed from the provider's own public artifacts under a published rubric.