RESTful API Description

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/restful/schemas/api-description",
  "title": "RESTful API Description",
  "description": "Minimal schema for describing a RESTful API — its identity, endpoints, and interface characteristics.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique identifier for this API"
    },
    "name": {
      "type": "string",
      "description": "Human-readable API name"
    },
    "description": {
      "type": "string",
      "description": "What the API does and who it is for"
    },
    "version": {
      "type": "string",
      "description": "API version (e.g., 1.0, v2, 2026-05-01)"
    },
    "baseUrl": {
      "type": "string",
      "format": "uri",
      "description": "Base URL for all API endpoints"
    },
    "documentationUrl": {
      "type": "string",
      "format": "uri",
      "description": "URL of the human-readable API documentation"
    },
    "specificationUrl": {
      "type": "string",
      "format": "uri",
      "description": "URL of the machine-readable OpenAPI specification"
    },
    "authentication": {
      "type": "object",
      "description": "Authentication requirements",
      "properties": {
        "type": {
          "type": "string",
          "enum": ["none", "apiKey", "bearer", "basic", "oauth2", "openid"],
          "description": "Authentication scheme"
        },
        "documentationUrl": {
          "type": "string",
          "format": "uri",
          "description": "Authentication setup documentation"
        }
      }
    },
    "maturityLevel": {
      "type": "integer",
      "minimum": 0,
      "maximum": 3,
      "description": "Richardson Maturity Model level (0-3)"
    },
    "tags": {
      "type": "array",
      "items": { "type": "string" },
      "description": "Domain tags for classification"
    }
  },
  "required": ["name", "baseUrl"]
}