Slate

Slate is an open-source tool for creating beautiful, three-panel API documentation from Markdown. Built on Ruby and Middleman, Slate renders a left-side navigation menu, a center documentation panel, and a right-side code sample panel. It supports multiple language tabs, full-text search, GitHub Pages deployment, and over 100 syntax-highlighted languages.

Slate publishes 1 API on the APIs.io network. Tagged areas include API Documentation, Developer Tools, Documentation, Markdown, and Ruby.

The Slate catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Slate’s developer surface includes GitHub presence, getting-started guide, documentation, changelog, code examples, and 14 more developer resources.

📡 Source on GitHub

27.8/100 thin ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemium

1 APIs

API Documentation Developer Tools Documentation Markdown Ruby Static Site GeneratorThree-Panel

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 27.8/100 · thin

Contract Quality 5.3 / 25

Developer Ergonomics 6.7 / 20

Access Clarity 3.2 / 20

Operational Transparency 3.8 / 13

Contract Governance 3.0 / 12

Discoverability 5.9 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/slate: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Rate Limits 1

Documented rate limits and quota policies.

Slate Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 1

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

Examples 1

Example request and response payloads for these APIs.

Slate Frontmatter Example

3 fields

EXAMPLE

Resources

Get Started 2

Portal, sign-up, and the first successful call

LiveDemo

LiveDemo

GettingStarted

GettingStarted

Documentation 5

Reference material describing how the API behaves

Documentation

Documentation

Documentation

Reference

JSONSchema

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

JSONStructure

JSONStructure

Vocabulary

Vocabulary

Build 3

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

npm

npm

Examples

Examples

Operate 2

Status, limits, changes, and where to get help

Forums

Forums

ChangeLog

ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 1

The organization behind the API

LinkedIn

Other 2

Properties that don't map to a standard resource type

Docker

Docker

Customers

Customers

Source (apis.yml)

aid: slate
url: https://raw.githubusercontent.com/api-evangelist/slate/refs/heads/main/apis.yml
apis:
- aid: slate:slate
  name: Slate
  tags:
  - API Documentation
  - Documentation
  - Markdown
  - Static Site Generator
  humanURL: https://github.com/slatedocs/slate
  properties:
  - url: https://github.com/slatedocs/slate
    type: GitHub
  - url: https://slatedocs.github.io/slate/
    type: LiveDemo
  - url: https://hub.docker.com/r/slatedocs/slate
    type: Docker
  - url: json-schema/slate-frontmatter-schema.json
    type: JSONSchema
  - url: json-ld/slate-context.jsonld
    type: JSONLD
  - url: json-structure/slate-frontmatter-structure.json
    type: JSONStructure
  - url: examples/slate-frontmatter-example.json
    type: Examples
  - url: vocabulary/slate-vocabulary.yml
    type: Vocabulary
  description: Slate is an open-source static site generator for creating beautiful, three-panel API documentation from Markdown
    files. Originally created by Robert Lord in 2013 at TripIt and later maintained by the slatedocs organization, Slate is
    built on Ruby and the Middleman static site framework. It renders documentation with a navigation sidebar on the left,
    API descriptions in the center panel, and code samples in the right panel.
name: Slate
tags:
- API Documentation
- Developer Tools
- Documentation
- Markdown
- Ruby
- Static Site Generator
- Three-Panel
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/slate.png
access: 3rd-Party
created: '2026-03-18'
modified: '2026-05-02'
position: Consumer
segments:
- Documentation
- Developer Tools
description: Slate is an open-source tool for creating beautiful, three-panel API documentation from Markdown. Built on Ruby
  and Middleman, Slate renders a left-side navigation menu, a center documentation panel, and a right-side code sample panel.
  It supports multiple language tabs, full-text search, GitHub Pages deployment, and over 100 syntax-highlighted languages.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'
common:
- type: LinkedIn
  url: https://www.linkedin.com/company/slate-magazine
- name: Slate GitHub Repository
  description: 'null'
  url: https://github.com/slatedocs/slate
  type: GitHub
- name: Slate Live Demo
  description: 'null'
  url: https://slatedocs.github.io/slate/
  type: LiveDemo
- name: Slate Docker Image
  description: 'null'
  url: https://hub.docker.com/r/slatedocs/slate
  type: Docker
- name: Slate Getting Started Wiki
  description: 'null'
  url: https://github.com/slatedocs/slate/wiki#getting-started
  type: GettingStarted
- name: Slate Using Natively
  description: 'null'
  url: https://github.com/slatedocs/slate/wiki/Using-Slate-Natively
  type: Documentation
- name: Slate Using Docker
  description: 'null'
  url: https://github.com/slatedocs/slate/wiki/Using-Slate-in-Docker
  type: Documentation
- name: Slate Using Vagrant
  description: 'null'
  url: https://github.com/slatedocs/slate/wiki/Using-Slate-in-Vagrant
  type: Documentation
- name: Slate in the Wild
  description: 'null'
  url: https://github.com/slatedocs/slate/wiki/Slate-in-the-Wild
  type: Customers
- name: Rouge Supported Languages
  description: 'null'
  url: https://github.com/rouge-ruby/rouge/wiki/List-of-supported-languages-and-lexers
  type: Reference
- name: Slate npm Package (slate-tools)
  description: 'null'
  url: https://www.npmjs.com/package/slate-tools
  type: npm
- name: Slate License (Apache 2.0)
  description: 'null'
  url: https://github.com/slatedocs/slate/blob/main/LICENSE
  type: License
- name: Slate Discussions
  description: 'null'
  url: https://github.com/slatedocs/slate/discussions
  type: Forums
- name: Slate Changelog
  description: 'null'
  url: https://github.com/slatedocs/slate/blob/main/CHANGELOG.md
  type: ChangeLog
- name: Slate Frontmatter JSON Schema
  description: JSON Schema for Slate frontmatter configuration
  url: json-schema/slate-frontmatter-schema.json
  type: JSONSchema
- name: Slate JSON-LD Context
  description: JSON-LD context for Slate documentation entities
  url: json-ld/slate-context.jsonld
  type: JSONLD
- name: Slate Frontmatter Structure
  description: JSON Structure for Slate frontmatter fields
  url: json-structure/slate-frontmatter-structure.json
  type: JSONStructure
- name: Slate Frontmatter Example
  description: Example frontmatter configuration
  url: examples/slate-frontmatter-example.json
  type: Examples
- name: Slate Vocabulary
  description: Domain vocabulary for Slate documentation concepts
  url: vocabulary/slate-vocabulary.yml
  type: Vocabulary

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Slate

Kin Score

APIs 1

Slate

Pricing Plans 1

Slate Plans Pricing

Rate Limits 1

Slate Rate Limits

FinOps 1

Slate Finops

Semantic Vocabularies 1

Slate Context

Spectral Rules 1

Slate API Rules

JSON Schema 1

Slate Frontmatter Configuration

JSON Structure 1

Slate Frontmatter Structure

Examples 1

Slate Frontmatter Example

Resources

Get Started 2

Documentation 5

Design & Contract 3

Build 3

Operate 2

Commercial 1

Company 1

Other 2

Source (apis.yml)

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