PlaceKitten

Placeholder kitten image service. Free, no-auth REST contract: /{width}/{height} for color, /g/{width}/{height} for grayscale. Created by Mark James, inspired by placehold.it.

PlaceKitten publishes 1 API on the APIs.io network: Image API. Tagged areas include Animals, Public APIs, Placeholder, Image, and Deprecated.

The PlaceKitten catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

🌐 Visit website 📡 Source on GitHub
27.2/100 thin ▬ flat Agent 19/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
1 APIs
AnimalsPublic APIsPlaceholderImageDeprecated

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 27.2/100 · thin
Contract Quality 16.2 / 25
Developer Ergonomics 1.0 / 20
Access Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Contract Governance 3.5 / 12
Discoverability 6.7 / 10
Agent readiness — 19/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.
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/placekitten: 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 1

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

PlaceKitten Image API

Placeholder image retrieval

Open Collections 3

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

API Collection

OPEN COLLECTION

PlaceKitten Image API

OPEN COLLECTION

PlaceKitten

OPEN COLLECTION

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Placekitten Context

2 classes · 6 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

PlaceKitten API Rules

5 rules · 3 warnings 2 info

SPECTRAL

PlaceKitten API Rules

6 rules · 3 errors 3 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

PlaceKittenImageRequest

3 properties

JSON SCHEMA

PlaceKittenImageResponse

5 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Placekitten Image Request Structure

0 properties

JSON STRUCTURE

Examples 3

Example request and response payloads for these APIs.

Placekitten Getgrayscalekittenimage Example

4 fields

EXAMPLE

Placekitten Getkittenimage Example

4 fields

EXAMPLE

Placekitten Html Embed Example

3 fields

EXAMPLE

Security Posture 1

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

Placekitten Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Placekitten Agentic Access

2 operations

2 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Other 2

Properties that don't map to a standard resource type

PublicAPIsListing
PublicAPIsListing
 Archive
Archive

Source (apis.yml)

apis.yml Raw ↑ 
aid: placekitten
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: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/placekitten.png
name: PlaceKitten
description: 'Placeholder kitten image service. Free, no-auth REST contract: /{width}/{height} for color, /g/{width}/{height}
  for grayscale. Created by Mark James, inspired by placehold.it.'
url: https://placekitten.com/
specificationVersion: '0.23'
created: '2026-05-28'
modified: '2026-05-30'
x-source: public-apis/public-apis
x-category: Animals
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
x-type: opensource
x-status: deprecated
x-status-checked: '2026-05-30'
x-status-evidence: HTTPS probe of https://placekitten.com/, /200/300, and /g/200/300 returned Cloudflare HTTP 521 (web server
  is down). DNS still resolves to Cloudflare edge IPs but the origin appears offline.
x-recommended-alternatives:
- picsum.photos
- placedog.net
- https://place-hold.it
tags:
- Animals
- Public APIs
- Placeholder
- Image
- Deprecated
tags_raw:
- Animals
- Public APIs
- Placeholder
- Images
- Deprecated
apis:
- aid: placekitten:placekitten-image-api
  name: PlaceKitten Image API
  description: Placeholder image retrieval
  humanURL: https://placekitten.com/
  baseURL: https://placekitten.com/
  tags:
  - Image
  properties:
  - type: OpenAPI
    url: openapi/placekitten-image-api-openapi.yml
  - type: Documentation
    url: https://placekitten.com/
  - type: JSONSchema
    url: json-schema/placekitten-image-request-schema.json
  - type: JSONSchema
    url: json-schema/placekitten-image-response-schema.json
  - type: JSONStructure
    url: json-structure/placekitten-image-request-structure.json
  - type: JSONLD
    url: json-ld/placekitten-context.jsonld
  - type: SpectralRules
    url: rules/placekitten-rules.yml
  - type: Vocabulary
    url: vocabulary/placekitten-vocabulary.yml
  - type: Examples
    url: examples/placekitten-getKittenImage-example.json
  - type: Examples
    url: examples/placekitten-getGrayscaleKittenImage-example.json
  - type: Examples
    url: examples/placekitten-html-embed-example.json
  - type: Archive
    url: https://web.archive.org/web/2023/https://placekitten.com/
common:
- type: AgenticAccess
  url: agentic-access/placekitten-agentic-access.yml
- type: DomainSecurity
  url: security/placekitten-domain-security.yml
- type: Website
  url: https://placekitten.com/
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
- type: Archive
  url: https://web.archive.org/web/*/placekitten.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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