Loft Labs

Loft Labs, now operating as vCluster Labs, provides a platform for AI cloud providers to deliver managed Kubernetes, Slurm, and inference clusters with tenant isolation. Their solution enables turnkey AI infrastructure, offering both bare‑metal and virtual machine provisioning, multi‑tenant management, capacity planning, and observability. The company targets AI cloud providers, enterprises, and hyperscalers seeking scalable, secure compute clusters, and also offers vMetal to expose physical resources as a cloud service.

Loft Labs is listed with 5 APIs on the APIs.io network, including Healthz API, Kubernetes API, Loft Labs API, and 2 more. Tagged areas include Artificial Intelligence, Cloud, Kubernetes, Multi-Tenant, and Infrastructure.

The Loft Labs catalog on APIs.io includes 1 Spectral governance ruleset.

Loft Labs’ developer surface includes CLI, authentication, changelog, documentation, getting-started guide, pricing, engineering blog, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.2/100 thin ▼ -8.1 Agent 28/100 agent aware Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

5 APIs

Artificial Intelligence Cloud Kubernetes Multi-Tenant Infrastructure

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 30.2/100 · thin

Contract Quality 2.2 / 19

Developer Ergonomics 4.7 / 15

Access Clarity 5.5 / 15

Operational Transparency 1.5 / 10

Contract Governance 2.9 / 9

Discoverability 5.9 / 8

Regulatory Posture 2.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 11.9 — up to +22.0 composite points
Developer Ergonomics scores 31.0 — up to +13.8 composite points
Access Clarity scores 36.8 — up to +12.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/loft-labs/apis.yml: open an issue on github.com/api-evangelist/loft-labs to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Loft Labs Healthz API

The Healthz API from Loft Labs — 1 operation(s) for healthz.

Loft Labs Kubernetes API

The Kubernetes API from Loft Labs — 9 operation(s) for kubernetes.

Loft Labs Loft Labs API

The Loft Labs API API from Loft Labs — 1 operation(s) for loft labs api.

Loft Labs Loft Sh API

The Loft Sh API from Loft Labs — 2 operation(s) for loft sh.

Loft Labs Node API

The Node API from Loft Labs — 1 operation(s) for node.

Loft Labs API pricing

Prices published by Loft Labs, read 2026-10-13 from www.vcluster.com/pricing.

Plan	Price
Free	$0
Enterprise	Chat with Sales

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Loft Labs Plans Pricing

2 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Loft Labs

SLA

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Loft Labs API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Loft Labs Authentication

1 scheme

SECURITY

Loft Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Conformance

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

Security

Security

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: loft-labs
name: Loft Labs
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/68994d4ecac027f80ff70510/692cf1d4d7bea7f25053a45c_Blank%20Open%20Graph.png
description: Loft Labs, now operating as vCluster Labs, provides a platform for AI cloud providers to deliver managed Kubernetes,
  Slurm, and inference clusters with tenant isolation. Their solution enables turnkey AI infrastructure, offering both bare‑metal
  and virtual machine provisioning, multi‑tenant management, capacity planning, and observability. The company targets AI
  cloud providers, enterprises, and hyperscalers seeking scalable, secure compute clusters, and also offers vMetal to expose
  physical resources as a cloud service.
url: https://raw.githubusercontent.com/api-evangelist/loft-labs/refs/heads/main/apis.yml
x-type: company
x-source: harvest:tag-qc
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-13'
modified: '2026-10-13'
tags:
- Artificial Intelligence
- Cloud
- Kubernetes
- Multi-Tenant
- Infrastructure
tags_raw:
- AI
- Cloud
- Kubernetes
- Multi-tenant
- Infrastructure
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/loft-labs-plans-pricing.yml
- type: Spectral
  url: rules/loft-labs-rules.yml
- type: CLI
  url: cli/loft-labs-cli.yml
- type: Authentication
  url: authentication/loft-labs-authentication.yml
- type: Conformance
  url: conformance/loft-labs-conformance.yml
- type: LLMsTxt
  url: llms/loft-labs-llms.txt
- type: WellKnown
  url: well-known/loft-labs-well-known.yml
- type: Hosts
  url: hosts/loft-labs-hosts.yml
- type: Vendors
  url: vendors/loft-labs-vendors.yml
- type: TermsOfService
  url: https://www.vcluster.com/legal/terms
- type: Security
  url: https://www.vcluster.com/tags/security
- type: PrivacyPolicy
  url: https://www.vcluster.com/legal/privacy
- type: GitHubOrganization
  url: https://github.com/loft-sh
- type: ChangeLog
  url: https://www.vcluster.com/releases
- type: DomainSecurity
  url: security/loft-labs-domain-security.yml
- type: Website
  url: https://www.loft.sh
- type: Documentation
  url: https://www.vcluster.com/docs
- type: GettingStarted
  url: https://www.vcluster.com/docs/getting-started
- type: Pricing
  url: https://www.vcluster.com/pricing
- type: Blog
  url: https://www.vcluster.com/blog
apis:
- aid: loft-labs:loft-labs-healthz-api
  name: Loft Labs Healthz API
  description: The Healthz API from Loft Labs — 1 operation(s) for healthz.
  humanURL: https://www.vcluster.com/docs/platform
  baseURL: https://github.com
  tags:
  - Healthz
  properties:
  - type: OpenAPI
    url: openapi/loft-labs-healthz-api-openapi.yml
- aid: loft-labs:loft-labs-kubernetes-api
  name: Loft Labs Kubernetes API
  description: The Kubernetes API from Loft Labs — 9 operation(s) for kubernetes.
  humanURL: https://www.vcluster.com/docs/platform
  baseURL: https://github.com
  tags:
  - Kubernetes
  properties:
  - type: OpenAPI
    url: openapi/loft-labs-kubernetes-api-openapi.yml
- aid: loft-labs:loft-labs-loft-labs-api-api
  name: Loft Labs Loft Labs API
  description: The Loft Labs API API from Loft Labs — 1 operation(s) for loft labs api.
  humanURL: https://www.vcluster.com/docs/platform
  baseURL: https://github.com
  tags:
  - Loft Labs API
  properties:
  - type: OpenAPI
    url: openapi/loft-labs-loft-labs-api-api-openapi.yml
- aid: loft-labs:loft-labs-loft-sh-api
  name: Loft Labs Loft Sh API
  description: The Loft Sh API from Loft Labs — 2 operation(s) for loft sh.
  humanURL: https://www.vcluster.com/docs/platform
  baseURL: https://github.com
  tags:
  - Loft Sh
  properties:
  - type: OpenAPI
    url: openapi/loft-labs-loft-sh-api-openapi.yml
- aid: loft-labs:loft-labs-node-api
  name: Loft Labs Node API
  description: The Node API from Loft Labs — 1 operation(s) for node.
  humanURL: https://www.vcluster.com/docs/platform
  baseURL: https://github.com
  tags:
  - Node
  properties:
  - type: OpenAPI
    url: openapi/loft-labs-node-api-openapi.yml
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, or other machine-readable contract was found despite probing known API hosts.
  evidence:
  - url: https://api.vcluster.com/openapi.json
    status: 0
  checked: '2026-10-13'
x-enrichment:
  date: '2026-10-13'
  status: enriched
  artifacts_added: 16
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Loft Labs API — frequently asked questions

Does Loft Labs have an API?

Yes. APIs.io lists 5 APIs from Loft Labs, including Loft Labs Healthz API, Loft Labs Kubernetes API and Loft Labs Loft Labs API, and 2 more.

Is there an OpenAPI specification for the Loft Labs API?

Yes. APIs.io indexes 5 OpenAPI specifications for Loft Labs, each linked for download from this page.

How do I authenticate with the Loft Labs API?

Loft Labs documents its authentication (1 scheme). The details are profiled on APIs.io as Loft Labs Authentication.

How much does the Loft Labs API cost?

Loft Labs publishes its prices; its Free plan is $0 as of 2026-10-13. APIs.io lists 2 pricing plans for Loft Labs, with each plan's price, limits and inclusions under Pricing on this page.

Is the Loft Labs API ready for AI agents?

Loft Labs has a Kin Score of 30.2 out of 100 (thin) and an Agent Readiness score of 27.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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