{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://the-federation.info/nodeinfo2#",
  "description": "NodeInfo2 schema version 1.0.",
  "type": "object",
  "required": [
    "version",
    "server",
    "openRegistrations"
  ],
  "properties": {
    "version": {
      "description": "The schema version, must be 1.0.",
      "enum": [
        "1.0"
      ]
    },
    "server": {
      "description": "Metadata about server in use.",
      "type": "object",
      "required": [
        "baseUrl",
        "name",
        "software",
        "version"
      ],
      "properties": {
        "baseUrl": {
          "description": "Base URL of the server.",
          "type": "string",
        },
        "name": {
          "description": "The display name of the server or service.",
          "type": "string"
        },
        "software": {
          "description": "The name of the server software.",
          "type": "string"
        },
        "version": {
          "description": "The version of this server software.",
          "type": "string"
        }
      }
    },
    "organization": {
      "description": "Metadata about the owner of this server.",
      "type": "object",
      "name": {
        "description": "The name of the organization or person.",
        "type": "string"
      },
      "contact": {
        "description": "Contact information for the organization or person.",
        "type": "string"
      },
      "account": {
        "description": "URL of admin or info account on this server.",
        "type": "string"
      }
    },
    "protocols": {
      "description": "The protocols supported on this server.",
      "type": "array",
      "minItems": 0,
      "items": {
        "type": "string"
      }
    },
    "services": {
      "description": "The third party sites this server can connect to via their application API.",
      "type": "object",
      "properties": {
        "inbound": {
          "description": "The third party sites this server can retrieve messages from for combined display with regular traffic.",
          "type": "array",
          "minItems": 0,
          "items": {
            "type": "string"
          }
        },
        "outbound": {
          "description": "The third party sites this server can publish messages to on the behalf of a user.",
          "type": "array",
          "minItems": 0,
          "items": {
            "type": "string"
          }
        }
      }
    },
    "openRegistrations": {
      "description": "Whether this server allows open self-registration.",
      "type": "boolean"
    },
    "usage": {
      "description": "Usage statistics for this server.",
      "type": "object",
      "properties": {
        "users": {
          "description": "statistics about the users of this server.",
          "type": "object",
          "properties": {
            "total": {
              "description": "The total amount of on this server registered users.",
              "type": "integer",
              "minimum": 0
            },
            "activeHalfyear": {
              "description": "The amount of users that signed in at least once in the last 180 days.",
              "type": "integer",
              "minimum": 0
            },
            "activeMonth": {
              "description": "The amount of users that signed in at least once in the last 30 days.",
              "type": "integer",
              "minimum": 0
            },
            "activeWeek": {
              "description": "The amount of users that signed in at least once in the last 7 days.",
              "type": "integer",
              "minimum": 0
            }
          }
        },
        "localPosts": {
          "description": "The amount of posts that were made by users that are registered on this server.",
          "type": "integer",
          "minimum": 0
        },
        "localComments": {
          "description": "The amount of comments that were made by users that are registered on this server.",
          "type": "integer",
          "minimum": 0
        }
      }
    },
    "relay": {
      "description": "State of relay integration, see https://github.com/jaywink/social-relay/blob/master/docs/relays.md",
      "enum": [
        "",
        "all",
        "tags"
      ]
    },
    "otherFeatures": {
      "description": "Other features of the server.",
      "type": "array",
      "minItems": 0,
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "description": "The name of the feature",
            "type": "string"
          },
          "version": {
            "description": "The version of the feature.",
            "type": "string"
          }
        }
      }
    }
  }
}