{
  "title": "SingularityNET Service Structure",
  "description": "Structural documentation for SingularityNET AI Service, Organization, ServiceGroup, and PaymentChannel resources.",
  "version": "1.0",
  "structure": {
    "Organization": {
      "description": "An entity that publishes AI services on the SingularityNET network.",
      "fields": {
        "org_id": {"type": "string", "description": "Unique organization identifier."},
        "org_name": {"type": "string"},
        "org_type": {"type": "enum", "values": ["individual", "organization"]},
        "description": {"type": "string"},
        "short_description": {"type": "string"},
        "url": {"type": "string"},
        "contacts": {"type": "array", "items": "Contact"},
        "metadata_uri": {"type": "string", "description": "IPFS metadata URI."},
        "service_count": {"type": "integer"}
      }
    },
    "Service": {
      "description": "An AI service published on the SingularityNET marketplace.",
      "fields": {
        "org_id": {"type": "string"},
        "service_id": {"type": "string"},
        "display_name": {"type": "string"},
        "description": {"type": "string"},
        "short_description": {"type": "string"},
        "url": {"type": "string"},
        "tags": {"type": "array", "items": "string"},
        "is_available": {"type": "boolean"},
        "metadata_uri": {"type": "string"},
        "service_api_source": {"type": "string", "description": "IPFS proto file URI."},
        "groups": {"type": "array", "items": "ServiceGroup"},
        "rating": {"type": "object", "fields": {"average_rating": {"type": "float"}, "total_users_rated": {"type": "integer"}}}
      }
    },
    "ServiceGroup": {
      "description": "A set of daemon endpoints with payment channel configuration.",
      "fields": {
        "group_id": {"type": "string"},
        "group_name": {"type": "string"},
        "endpoints": {"type": "array", "description": "gRPC daemon endpoint URLs."},
        "pricing": {"type": "array", "items": "Pricing"},
        "payment": {"type": "object", "description": "MPE payment configuration."}
      }
    },
    "Pricing": {
      "description": "Service call pricing in cogs.",
      "fields": {
        "price_model": {"type": "enum", "values": ["fixed_price", "fixed_price_per_kilo_bytes"]},
        "price_in_cogs": {"type": "integer", "description": "Price per call (1 ASI = 10^8 cogs)."},
        "default": {"type": "boolean"}
      }
    },
    "PaymentChannel": {
      "description": "An MPE payment channel for funding AI service calls with ASI tokens.",
      "fields": {
        "channel_id": {"type": "string"},
        "nonce": {"type": "integer"},
        "balance_in_cogs": {"type": "string"},
        "pending": {"type": "string"},
        "endpoint": {"type": "string"},
        "expiration": {"type": "integer", "description": "Expiration block number."},
        "signer": {"type": "string", "description": "Ethereum wallet address."}
      }
    }
  }
}