World Labs

World Labs is a company surfaced as a portfolio company of sv-angel and added to the API Evangelist network as a stub for enrichment. Sector: ai. This profile is a lead awaiting the enrichment pipeline.

World Labs publishes 2 APIs on the APIs.io network: Credits API and Marble API. Tagged areas include Company and Artificial Intelligence.

World Labs’ developer surface includes authentication and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
20.5/100 emerging ▬ flat Agent 27/100 agent aware Front door AI 3/6 light Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
1 APIs
CompanyArtificial Intelligence

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 20.5/100 · emerging
Contract Quality 9.2 / 19
Developer Ergonomics 2.7 / 15
Access Clarity 0.0 / 15
Operational Transparency 0.0 / 10
Contract Governance 0.4 / 9
Discoverability 3.5 / 8
Regulatory Posture 2.5 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 27/100 · 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 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 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 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
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/.
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 github.com/api-evangelist/world-labs: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

World Labs Credits API

The credits API from World Labs — 1 operation(s) for credits.

World Labs Marble API

The Marble API from World Labs — 8 operation(s) for marble.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Marble Public API v1 credits API

OPEN COLLECTION

Public API v1 credits Marble API

OPEN COLLECTION

Security Posture 3

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

World Labs Authentication

apiKey · 1 scheme

SECURITY

World Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

World Labs Vulnerability Disclosure

disclosure policy published

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill
AgentSkill
 X-MCPServerCandidate
X-MCPServerCandidate

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: world-labs
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/world-labs.png
name: World Labs
description: 'World Labs is a company surfaced as a portfolio company of sv-angel and added to the API Evangelist network
  as a stub for enrichment. Sector: ai. This profile is a lead awaiting the enrichment pipeline.'
url: https://raw.githubusercontent.com/api-evangelist/world-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- sv-angel
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Artificial Intelligence
tags_raw:
- Company
- Ai
apis:
- aid: world-labs:world-labs-credits-api
  name: World Labs Credits API
  description: The credits API from World Labs — 1 operation(s) for credits.
  tags:
  - Credit
  tags_raw:
  - credits
  properties:
  - type: OpenAPI
    url: openapi/world-labs-credits-api-openapi.yml
- aid: world-labs:world-labs-marble-api
  name: World Labs Marble API
  description: The Marble API from World Labs — 8 operation(s) for marble.
  tags:
  - Marble
  properties:
  - type: OpenAPI
    url: openapi/world-labs-marble-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgentSkill
  url: skills/world-labs-marble-developer-api.md
- type: X-MCPServerCandidate
  url: mcp/world-labs-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Overlay
  url: overlays/world-labs-marble-overlay.yaml
- type: VulnerabilityDisclosure
  url: security/world-labs-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/world-labs-domain-security.yml
- type: Authentication
  url: authentication/world-labs-authentication.yml
- type: Website
  url: https://worldlabs.ai

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