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

22.1/100 emerging ▬ flat Agent 27/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Artificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 22.1/100 · emerging

Contract Quality 12.3 / 23

Developer Ergonomics 3.4 / 18

Access Clarity 0.0 / 18

Operational Transparency 0.0 / 12

Contract Governance 0.5 / 11

Discoverability 4.3 / 9

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

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.

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)

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:
  - Credits
  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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